# Procurement of AN/APX-119 Transponder, P/N: 4079100-0541

Canonical: https://abierto.us/opportunities/fa850426rxxxx

- Solicitation number: FA850426RXXXX
- Notice type: Sources sought
- Status: Closed. Deadline was December 6, 2025 at 5:00 PM EST
- Department: Department of the Air Force
- Agency: Department of the Air Force
- Contracting office: FA8504 AFLCMC Wlnka (FA8504)
- NAICS: 334511 Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing
- Product or service code: K016 Modification of Equipment: Aircraft Components and Accessories
- Place of performance: Arlington, Virginia
- County: Arlington County (FIPS 51013). https://abierto.us/counties/arlington-county-va-51013
- City: Arlington. https://abierto.us/cities/arlington-va-5103000
- First posted: November 6, 2025
- Last posted: November 6, 2025
- SAM.gov: https://sam.gov/workspace/contract/opp/eacd57682f82483e80d75a4286d8ff89/view

## Description

The Government is conducting market research to identify potential sources that possess the expertise, capabilities, and experience to meet qualification requirements to procure the C-130J Avionics Identification Friend of Foe (IFF) AN/APX-119 Transponder component listed below:

NOUN NSN P/N AN/APX-119 Transponder 5841-01-693-3952 4079100-0541 This requirement is for manufacturing services. Our manufacturing services strategy is a two-year contract and will continue through FY27. The projected quantities will be 217 units.

The Government’s needs for manufacturing services are required in order to upgrade C-130J aircraft to meet the requirements of AMC 22-042 "Maintain Traffic and Collision Avoidance System (TCAS) While Inhibiting Position Reporting Systems Emissions,” Urgent Operation Need (UON) 25-008 and to mitigate Diminishing Manufacture Sources and Material Shortages (DMSMS) of the legacy IFF Transponder (PN: 4079100-0522).

The AN/APX-119 Transponder, These transponders are essential to enable existing Traffic Alert and Collision Avoidance System (TCAS) capabilities while selectively inhibiting, "open air" position reporting systems, such as Automatic Dependent Surveillance-Broadcast (ADS-B) Out and/or Air Traffic Control (ATC) Mode Select (S).

## Publications

- November 6, 2025: Sources sought, due December 6, 2025 at 5:00 PM EST. Notice eacd57682f82483e80d75a4286d8ff89. https://sam.gov/workspace/contract/opp/eacd57682f82483e80d75a4286d8ff89/view

## Points of contact

- Erica Carter, erica.carter.3@us.af.mil
- Vicki Wechsler, vicki.wechsler@us.af.mil

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Source: SAM.gov Contract Opportunities bulk extract. Confirm deadlines on SAM.gov before responding. Cite https://abierto.us/opportunities/fa850426rxxxx.