Transmission, Mechan_End_Item_B-1B_NSN_1680011427637RK_PN_NF53300-04A

The United States Air Force is conducting market research (Sources Sought) to identify potential suppliers for new‑manufacture spares of a mechanical transmission (NSN 1680011427637RK, P/N NF53300‑04A) used on the B‑1B bomber. The effort is a “new spares buy” with an estimated requirement of 11 minimum to 69 maximum units. Respondents must be capable of full‑scale manufacturing, testing, packaging, and logistics support, and may be required to submit a Source Approval Request (SAR) package. No funds are presently allocated; the solicitation will be issued later based on the results of this research. • Item: Mechanical transmission for B‑1B (NSN 1680011427637RK, P/N NF53300‑04A) • Quantity: 11 (min) – 69 (max) units • Scope: New manufacture, inspection, testing, preservation/packaging, shipping, supply‑chain management, long‑lead‑time procurement, and possible non‑recurring engineering costs • Place of performance: Tinker AFB, Oklahoma • NAICS: 336413 (Aircraft Engine & Engine Parts Manufacturing) • Target audience: All business sizes, including small, HUBZone, SDVOSB, women‑owned, 8(a), etc. • Response deadline: 10 Oct 2026 (no solicitation yet; responses are for market research only) • Required submission: SAR package via DoD SAFE or email to listed contacts.