GKN Aerospace Chem-Tronics Inc.

GKN Aerospace Chem-Tronics Inc., a foreign-owned aerospace component manufacturer based in El Cajon, California, supplies aircraft engine parts and repair services to the Department of Defense as a prime contractor (71% of recent awards) and subcontractor on major platform sustainment programs, competing without set-aside designations.

The company manufactures and repairs engine components under NAICS 336412 (Aircraft Engine and Engine Parts Manufacturing), with concrete prime capability anchored in aircraft fan blade sets, duct fans, and F-108 Stage I fan blade repair. Recent prime work includes a $4.5 million firm fixed-price purchase order from Air Force Materiel Command's Oklahoma City Air Logistics Complex (awarded October 2024) for repair of 200 F-108 Stage I fan blades every thirty days in accordance with a performance work statement, a $875 thousand definitive contract from Air Force Materiel Command (awarded January 2022) for F-100 engine duct fans qualified to specification, and a series of Naval Supply Systems Command purchase orders ranging from $37 thousand to $67 thousand for aircraft fan blade set manufacture (awards in January 2025 and February 2026). The company maintains established subcontracting relationships with General Electric Company, RTX Corporation, and AAR Government Services Inc., positioning it within the broader defense industrial supply chain.

Customer concentration is heavily weighted to Air Force programs. The Air Force Materiel Command accounts for 149 awards carrying $118.2 million in combined potential value, representing the dominant share of GKN Aerospace Chem-Tronics' footprint. The Air Force Sustainment Center places an additional 21 awards worth $43.6 million combined potential value. Defense Logistics Agency Aviation follows with 12 awards totaling $22.7 million combined potential value. Top PSC categories reflect this focus: Gas Turbines and Jet Engines, Aircraft components dominate with 136 awards, and Maintenance/Repair/Rebuild of Engines, Turbines, and Components account for 96 awards. The Navy's Naval Supply Systems Command and Naval Air Systems Command contribute smaller volumes.

GKN Aerospace Chem-Tronics holds positions on five major Air Force IDIQs. Indefinite Delivery Contract FA852621D0001 carries 68 task orders; Indefinite Delivery Contract F3460183D0987 carries 21 task orders; Indefinite Delivery Contract F3460184D2118 carries 19 task orders; Indefinite Delivery Contract FA810008D0003 carries 18 task orders ($20.9 million combined potential value); and Indefinite Delivery Contract FA810014D0001 carries 17 task orders ($42.1 million combined potential value). These vehicles are the primary channels for ongoing fan blade supply and repair task orders from Air Force sustainment commands.

The subcontract footprint is substantial and recent. Boeing is the dominant prime contractor, with GKN Aerospace Chem-Tronics appearing as a subcontractor on C-17 Globemaster III total sustainment and minor development orders placed continuously from May 2022 through May 2026 at high frequency, and on CMV-22 production Lot 22 long-lead-time items through the Bell Boeing Joint Project Office. RTX Corporation uses GKN Aerospace Chem-Tronics for F135 engine control unit risk reduction design, F119 engine sustainment work, and Lot 18 part number and tooling support across multiple awards dating from May 2024 through December 2025. General Electric Company engaged the vendor for F110 engine foreign military sales aviation engine hardware across Taiwan, Bulgaria, Bahrain, and Slovakia starting in May 2024. The vendor also acts as a sub-recipient under an Advanced Technology International SBIR grant (AO26-BA34 — Cold Spray Support of Castings, awarded September 2024) for materials science research.

Activity expanded sharply in 2025. The vendor recorded only three prime awards in 2022, one in 2023, and fourteen in 2024; 2025 registered 72 awards. Awards in the first five months of 2026 total 14. Combined obligated dollars ($406.3 million) exceed combined potential value ($189.6 million), indicating sustained work flow and invoice momentum. Recompete exposure in the next twenty-four months is minimal — only one award with combined potential value of $37 thousand faces ultimate completion inside that window. The award footprint spans 366 total actions (prime and sub combined) across thirteen customer agencies, with 154 awards concentrated in Aircraft Engine and Engine Parts Manufacturing NAICS and 136 in Gas Turbines and Jet Engines PSC codes.