The Gearbox Assembly,aircraft, cataloged under National Stock Number 1680-01-651-6757, is classified within Federal Supply Class 1680 (Miscellaneous Aircraft Accessories and Components) of the Aircraft Components and Accessories group. The manufacturer of record is Boeing Defence Uk Ltd. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1680-01-651-6757 |
| Primary Part Number | 256A3640-4 |
| Item Name | Gearbox Assembly,aircraft |
| FSC / FSG | 1680 / 16 — Miscellaneous Aircraft Accessories and Components |
| Manufacturer | Boeing Defence Uk Ltd |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 256A3640-4 | Boeing Defence Uk Ltd (GBR) |
| Reference | Meaning |
|---|---|
| 1560PL1788943 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| 256A3640-4 | 3/2 Design control — primary reference U.S. Government activity |
NSN 1680-01-651-6757 is a Gearbox Assembly,aircraft, manufactured by Boeing Defence Uk Ltd, classified under FSC 1680, Miscellaneous Aircraft Accessories and Components. Status: active.
NSN 1680-01-651-6757 has 1 manufacturer part number on file: 256A3640-4 (Boeing Defence Uk Ltd).
Key specifications for 256A3640-4: Part Name Assigned by Controlling Agency: ANGLE GEARBOX ASSY; End Item Identification: P-8A AIRCRAFT A. 0 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 1680-01-651-6757 has DEMIL Code D. Demilitarization may be required before disposal or transfer to non-military entities.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.