Ukrainian Intelligence Publishes List of Su-57 Program Component Suppliers and Partners

On Monday, April 20, 2026, the Main Intelligence Directorate of the Ministry of Defence of Ukraine (HUR MO) published on the War & Sanctions information portal a 3D model and a list of 103 entities involved in the production of Russian Su-57 multirole aircraft (NATO reporting name: Felon).

Final assembly of a Su-57 / Photo: UAC

Final assembly of the Su-57 takes place at the Yuri Gagarin Komsomolsk-on-Amur Aircraft Plant (KnAAPO), which is part of the United Aircraft Corporation (UAC), itself part of the state-owned Rostec holding. The latest delivery of the modified version of the aircraft took place on February 9 this year, but on April 11 a fire reportedly broke out in workshop No. 46, which specializes in the production of parts made from a matrix, or PCM polymer such as resin, and reinforcement, including glass and carbon fibers.

Today, HUR MO published information obtained by Ukrainian intelligence on the supply chain. One-third of these entities are currently not subject to restrictions by any country belonging to the sanctions coalition. This allows them to retain access to foreign technologies and component bases necessary for the development of Russian combat aviation.

The full list:

• Krasny Oktyabr of St. Petersburg: GTDE-117M/GTDE-117-1M auxiliary gas turbine units;
• National Institute of Aviation Technologies (NIAT) of Moscow: multifunctional silicate cockpit glazing;
• Institute of Theoretical and Applied Electrodynamics of the Russian Academy of Sciences in Moscow: radar-absorbing coatings for components, in particular for the Yasmin-50(30) antenna-feed systems and PNA-PLA-04 anti-jamming system devices;
• YashZ Avia of Yaroslavl: Model 1A tires, measuring 1050 x 365 mm, and Model 4A tires, measuring 620 x 180 mm, from the Altai Tire Plant (AShK) in Barnaul;
• NAU Chips of Moscow: supplies parts to the Tsiklon Central Research Institute and applies anti-reflective coatings to lenses;
• BI Pitron Electric of St. Petersburg: supplies various electronic components, including foreign-made Ruilon components;
• PromGroupPribor of Moscow: supplies optical elements to NPK SPP for non-destructive testing;
• NPO GeliyMash of Moscow: supplies equipment for the separation, purification, and liquefaction of gases from the SNG-GT-T50 product line;
• Most of Moscow: carried out a number of repairs to the UC-10S water deionization installation for NPP Istok, necessary for the production of microcircuits and semiconductors;
• Vershina Tire Testing Center of Yaroslavl: standard testing of aircraft tires manufactured by YashZ Avia;
• Mikropribor Plant of Konakovo: supplies MPPU-50 small radio transmitters;
• OOO Promyshlennye Sistemy of Verkhnyaya Pyshma: supplies rolled aluminum and its alloys to UAC-UMPO;
• Metobrabotka of Kamensk-Uralsky: supplies components for S-111-30 airborne communications systems to NPP Polet;
• POShK of Moscow: supplies YashZ Avia with raw materials for tire production, including foreign-origin materials such as accelerators, antioxidants, anti-scorching agents, natural rubber, and others;
• Altai Tire Plant (AShK) in Barnaul: supplies YashZ Avia with the aforementioned tires;
• NPO Mobilnye Informatsionnye Sistemy of Moscow: on behalf of PJSC UAC, carried out research and development work on “Development of functional software for airborne digital information mapping for the T-50 information and control system,” under the code name Mozaika;
• WP Petro In Trade of St. Petersburg: supplies foreign-made electronic components to the Tsiklon Central Research Institute;
• G. Guskov Research Institute of Microdevices of Zelenograd: supplies electronic components to the Krasnoye Znamya plant for the production of MPPU-50 small radio transmitter units;
• I. Rumyantsev Mechanical Engineering and Construction Production Association of Moscow: supplies PAO AK Rubin with components for GP25-4 engine-driven generators;
• Girooptika of St. Petersburg: participates in the production of the 101KS-U/01 Atoll ultraviolet missile warning system and supplies components to PO UOMZ;
• Navigator Research Institute of Aviation Instrument Engineering of St. Petersburg: supplies the RSBN-85V and RSBN-85VM1 short-range radio navigation systems;
• Academician S.V. Lebedev Research Institute of Synthetic Rubber of St. Petersburg: develops and manufactures high- and low-temperature-resistant synthetic rubbers, sealants, and rubber products;
• Gidroavtomatika of Samara: supplies and repairs AU46-05 control units and 698800 solenoid valves;
• Agregat of Samara: supplies valves 582000-2, 643100-1, 702900, 740600-2-02, 741580-01, 766100AM, 772400, 800600-2M, 860500-10, and 990-7-4; 702800 cocks; 771700MA hydraulic accumulators; 782600-2M main shutoff valves; 881200-2 regulators; 989AT-1-16, 989AT-2-25, 989AT-2-32, 989AT-2-50, 989AT-2-70, and 989AT-2-80 fuel check valves; 990-7-6 and 990-7-8 check valves; 990-7-12 and 990-7-16 hydraulic check valves; 991AT.02A-01 side-valve tips; and OST111320-74 fittings;
• Lytkarino Machine-Building Plant of Lytkarino: tests and improves turbojet engines; since 2016, it has tested the Su-57 powerplant, the Saturn AL-41F1 engines;
• Voskhod Pavlovo Machine-Building Plant of Nizhny Novgorod: supplies RPD-35 proportional pressure regulators to PAO AK Rubin, used in NP-173 piston pumps, SRP-50 control-system actuator assemblies, BUP-50 actuator control units, and hydraulic actuators;
• PAO AK Rubin of Balashikha: supplies KT-213-1 and KT-213-2 brake wheels, KN35 and KN35-2 non-braked wheels, NP-173 and NP-128 piston pumps, GP25-4 and GP25-2 engine-driven generators, KE100-2 and KE101-2 solenoid valves, RD66-2 pressure regulators, and UG 186, 187, and 188 universal hydraulic boosters;
• Elektroprivod of Kirov: supplies MPK-24A drive mechanisms for spars to NPP Zvezda;
• A.I. Glukharyov Engels Experimental Design Bureau Signal of Privolzhsky: supplies sensors and alarm systems, including SNPT-16, DSPDT-0.15MG, SDG-1.25A, SD-15MG-A, SD-2.2MG-A, SPT-0.15MG-A, SPT-0.55MG, DOS 280, SDM-100A, and SD-0.8MG-A. It also supplies PAO AK Rubin with SDDM and SZF alarm systems for GP25-4 engine-driven generators;
• Academician A.G. Shipunov Instrument Design Bureau of Tula: supplies NNPU-50 mounts with 30-mm 9A1-4071K automatic aircraft cannons;
• Ural Iset Electrical Connector Plant of Kamensk-Uralsky: supplies 82 components, such as electrical connectors, sockets, protective covers, nuts, and other items;
• NPO Saturn of Rybinsk: manufactures AL-41F1 engines as well as izdeliye 177, an interim solution due to delays with the intended AL-51F1, or izdeliye 30, previously designated the Phase II engine, which was intended to replace the AL-41F1. The Russians also tested a flat exhaust nozzle for the AL-51F1 on this example;
• NPO Temp-Avia of Arzamas: supplies ISRP-50 integrated standby instrument systems;
• Ramenskoye Instrument Design Bureau: supplies KPNO aviation and navigation equipment systems, UUP-T-50 unified control panels, MFPI-50M multifunction display panels, ShKAI-57 wide-angle helmet-mounted displays, integrated modular avionics data systems for the SD IMA BK airborne suite, and IUS-T-50M information and control system units;
• P.A. Yefimov Elektroavtomatika Design Bureau of St. Petersburg: chief designer of the ShKAI-57;
• All-Russian Research Institute of Aviation Materials of the Kurchatov Institute in Moscow: supplies KMU-18 carbon-fiber-reinforced plastic and lightning-protection coatings for the airframe;
• V.V. Tikhomirov Research Institute of Instrument Design of Gagarin: handles adaptation, production, and delivery of radar-environment simulators for the Su-57 test stand;
• Lepse Electrical Machine-Building Plant of Kirov: supplies and repairs SG-PUD-50 electrical mechanisms, or throttle components, for Aeroelektromash, which are part of PUD-50 engine control panels;
• United Aircraft Corporation (UAC) of Moscow: main manufacturer and integrator of the Su-57;
• N.L. Dukhov All-Russian Research Institute of Automation of Moscow: on behalf of UAC, carried out research and development work supporting the operational use of the Su-57;
• Yuri Gagarin Komsomolsk-on-Amur Aircraft Plant (KnAAPO) in Komsomolsk-on-Amur: Su-57 final assembly plant;
• RN-AERO of Moscow: supplies aviation fuel to UAC;
• UAC-UFA Engine-Building Production Association of Ufa: supplies 96.06.69.000-3 accessory gearboxes for AL-41F1 engines;
• I.I. Toropov State Machine-Building Design Bureau Vympel of Moscow: supplies 50-mm impulse cartridges for UW-50-01 specialized modular passive dispensers, various types of missile armament, including RVV-MD2, RVV-BD, R-37M, R-77-1, and others, AKU-170E and AKU-620E underwing weapon stations, and UWKU-50U and UWKU-50L universal weapon stations for the internal weapons bay;
• Tsiklon Central Research Institute of Moscow: develops and supplies various types of onboard equipment;
• G.A. Ilyenko Elara Research and Production Complex of Cheboksary: supplies KSU-50-01 integrated control systems, UKS 192 and UKS 193 signal-control devices, and BD-11 components;
• Shokin NPP Istok of Fryazino: develops and manufactures broadband microwave amplifiers for the missile-defense system used in the Sh-121 radar-guided weapons-control systems;
• Modul Scientific and Technical Center of Moscow: supplies SKI modules forming part of the 5PRM system, for Aviaavtomatika named after V.V. Tarasov, and electronic components, or integrated circuits, forming part of BCVM-R digital onboard computers, for GRPZ;
• L.K. Safronov State Scientific Research Enterprise for Aviation Systems of Voskresensk: tests NNPU-50 aircraft weapon stations;
• Research Institute of Physical Measurements of Penza: supplies DAV-096 absolute pressure sensors, SITUOK-01 wheel temperature indication and cooling-control systems, and SKPSh-01 landing-gear parameter monitoring systems;
• Yaroslavl Radio Plant of Yaroslavl: supplies SCS modules to NPP Polet, forming part of the S-111 and S-111-30 airborne communications systems;
• North-Western Regional Center of NPO Almaz-Antey — Obukhov Plant of St. Petersburg: supplies Yasmin-50(30) antenna-feed systems, BPI-T-50 data conversion units, and 94B6-M modules;
• Concern Avtomatika of Moscow: supplies MK-111 components to NPP Polet, forming part of the S-111 airborne communications system;
• Gidravlika Aggregate Enterprise of Ufa: supplies various components to UAC and UAC-Orion, including pumps, fuel filters, filter elements, and others;
• A.G. Romashin Obninsk Research and Production Enterprise Tekhnologiya of Obninsk: provides services involving the application of multifunctional thin-film coatings to cockpit canopies;
• WIGSTAR Research and Production Center of Moscow: designer of the S-111 communications system for NPP Polet;
• Prof. N.E. Zhukovsky Central Aerohydrodynamic Institute of Zhukovsky: carried out research and development work on the Su-57 variant for the Navy, in particular on software for the VSP-35 airspeed measurement system;
• M.M. Gromov Flight Research Institute of Zhukovsky: conducts tests of the AL-51F1 engine;
• UAC-Orion of Perm: develops and manufactures integrated fuel-supply and control systems, or FADEC, for engines;
• E.S. Yalamov Ural Optical and Mechanical Plant Production Association of Yekaterinburg: supplies the 101KS-U/01 Atoll ultraviolet missile warning system, consisting of the OLS-50M thermal-location sensor (101KS-V), the 101KS-O laser defense system against infrared-guided enemy missiles, the 101KS-U ultraviolet system, including KS-U/01 and 101KS-U/02 modules, the 101KS-P high-resolution thermal imaging camera, the 101KS-N suspended multichannel targeting system, and 101KS-series products;
• V.I. Luzhyanin Gidromash of Nizhny Novgorod: supplies landing-gear and hydraulic-system components, including actuators, supports, cylinders, and other items;
• Ulyanovsk Instrument Design Bureau of Ulyanovsk: supplies compact MC2 red indicator lights, RRYa-6 regulators, TS-11 light-signal panels, BRO-1-4 voice annunciators, ST7 annunciators, SB-1 annunciators, SM7 annunciators, ISID-2 integrated signaling and subsonic-warning systems, SAS-9-3 emergency annunciators, SSS-50 low-speed measuring devices, and BKS-35 and BKS-50 signal concentrators;
• NPO Izmeritel of Smolensk: supplies integrated onboard recorder systems (IBSR), or so-called black boxes;
• Vyatka Machine-Building Enterprise Avitek of Kirov: produces and refurbishes K-36DM, or K-36D-5.01, ejection seats;
• Krasnoye Znamya Plant of Ryazan: manufactures MPPU-50 small radio transmitters, which are then supplied to GRPZ;
• Aircraft Repair Plant No. 121 of Odintsovo: repairs and modernizes Su-57 engines and components;
• Lytkarino Optical Glass Plant of Lytkarino: supplies optical components to the V.I. Lenin Leningrad Optical and Mechanical Association LOMO;
• Tekhpribor of St. Petersburg: supplies KUTR5-2 Series 1 fuel-injection management systems;
• Stavropol Radio Plant Signal of Stavropol: manufactures L402 Himalayas tail-mounted rear-hemisphere surveillance radar systems, forming part of the Sh-121 radar weapons-control system;
• Moscow Institute of Electromechanics and Automation of Moscow: manufactures and supplies BINS-SP-2M strapdown inertial navigation systems;
• Aeropribor-Voskhod of Moscow: supplies SI VSP-35-1 airspeed measurement devices, PNA-PLA-04 anti-jamming system devices, and ARK-35-3M aircraft radio compasses;
• State Ryazan Instrument Plant of Ryazan: manufactures and supplies the Sh-121 radar weapons-control system, with a set of installation parts and MPPU-50 small radio transmitters, as well as BCVM-R digital onboard computers;
• Kaluga Research Institute of Radio Engineering of Kaluga: designed the L402 Himalayas;
• Academician G.I. Severin Research and Production Enterprise Zvezda of Lyubertsy: designed K-36DM, or K-36D-5.01, ejection seats, KS-50 oxygen systems, PPK-7 anti-g suits, ZSh-10 unified pilot protective helmets, and GPT-2E-1 fuel-pump heads;
• NPP Polet of Nizhny Novgorod: develops and supplies S-111-N and S-111-30 airborne communications systems, Aist-50 antenna-information systems, as well as AVP-DKMV multichannel radio stations and AVP-IFRNS antenna-computing platforms of the pulse-phase radio navigation system;
• NPO Precision Measurement Systems of Moscow: develops and supplies optical ranging stations and optical systems for self-defense suites;
• Aeroelektromash of Moscow: supplies PUD-50 aircraft engine control panels, BKNA 115V-2 voltage-control systems, and BRZU 115VO-2s-2 protection and control systems;
• V.V. Tarasov Aviaavtomatika of Kursk: supplies UW-50-01 specialized modular passive countermeasure devices, part of the L-402 Himalayas, KRUSiD control sets, RUS-03 control grips, right-hand RUD-03 and left-hand RUD-03 engine control levers, MPK-37 rotary electromechanisms with torque-limiting clutches, RA relays, and 5PRM system components;
• O.V. Uspensky NPO Avionika of Moscow: developed the KSU-50 integrated control systems;
• V.I. Lenin Leningrad Optical and Mechanical Association LOMO of St. Petersburg: supplies optical components and subassemblies for the 101KS-U/01 Atoll ultraviolet missile warning system;
• NPO Measuring Equipment of Korolyov: supplies equipment to UAC;
• UAC-UMPO of Ufa: manufactures AL-51F1 engine components;
• All-Russian Research Institute of Physical, Technical and Radio Engineering Measurements of Solnechnogorsk: carried out research and development work titled “Metrological evaluation of the program and methodology for primary/periodic certification and participation in the primary certification of the T-50 semi-full-scale assembly and test stand”;
• State Research Institute of Aviation Systems of Moscow: carried out research and development work on a project titled “Development of functional software for the combat use of the T-50 aircraft information and control system”;
• Experimental Design Bureau Aerospace Systems of Dubna: supplies TVU-8.1 thermal imaging devices, FOAZ-3 refueling-station lighting, FPR-16 nozzle lighting, FSS-01 and FSS-02 warning lights, ANO-50 cable protectors, OPS-3A/2 and OPS-3B/2 parking-light systems, and MSB-02A onboard warning indicators;
• Elekon Plant of Kazan: supplies electronic connectors and plugs;
• Elkus Electronics Company of St. Petersburg: supplies LPI MKIO and LPI MKIO ASP data transmission lines, PAI-50 display panels, and GP-SRT-75 sealed adapters;
• Dubna Communications Equipment Plant of Dubna: supplies connectors, 16 types, and PU 1.02 sealing plugs;
• Fregat of St. Petersburg: supplies electronic components to the Yaroslavl Radio Plant;
• Don of Moscow: supplies electronic components to PO UOMZ;
• MAKRO TIM of Moscow: supplies electronic components to the Yaroslavl Radio Plant;
• V.F. Solinov Research Institute of Technical Glass of Moscow: participated in developing the design of multifunctional silicate cockpit glazing;
• MNITI of Moscow: carried out research and development work on “Development of a converter of analog TV (TPV) signals from ASP with a TV (TPV) seeker into the digital format of a fiber-optic channel (ARINC 818-1) for the T-50,” under the code name ATSP-TS;
• Elins Scientific and Technical Center of Moscow: supplies components to NPP Polet;
• Signal Instrument Production Association of Engels: supplies NTM-240 and NTM-400 fuel-system pressure gauges, SPT-0.1 indicators for production of the Sh-121, for GRPZ, and SDDM and SZF indicators for GP25-4 generator drives, for PAO AK Rubin;
• V. Chkalov Novosibirsk Aircraft Production Association (NAPO) of Novosibirsk: manufactures PTB-2000 and PTB-3400 external fuel tanks, VTB-M and VTB-B internal fuel tanks, and adaptation kits;
• Samara Metallurgical Plant of Samara: supplies UAC with aluminum-alloy profiles and semi-finished products, including D19Ch profiles, D16Ch alloy sheets, D19Ch sheets, V95Ch sheets, AK4-1T1 tubes, and others;
• P.O. Sukhoi Experimental Design Bureau of Moscow: develops the Su-57, in particular by conducting static airframe tests, ground tests of major onboard systems, development of the IUS-57 information and control system, tests of hydraulic, electrical, fuel, and other systems, weapons-system tests, and tests of multifunctional silicate cockpit glazing.

❗️War&Sanctions: DIU reveals data on over a hundred enterprises involved in su-57 fighter production

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— Defence Intelligence of Ukraine (@DI_Ukraine) April 20, 2026