The Cover,gear Box, cataloged under National Stock Number 1680-00-560-6434, is classified within Federal Supply Class 1680 (Miscellaneous Aircraft Accessories and Components) of the Aircraft Components and Accessories group. The manufacturer of record is Breeze-Eastern Llc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Cover,gear Box |
| FSC / FSG | 1680 — Miscellaneous Aircraft Accessories and Components (FSG 16) |
| Manufacturers | Breeze-Eastern Llc (CAGE 08484) |
| Parameter | Value |
|---|---|
| NSN | 1680-00-560-6434 |
| Primary Part Number | BL1555 |
| Item Name | Cover,gear Box |
| FSC / FSG | 1680 / 16 — Miscellaneous Aircraft Accessories and Components |
| Manufacturer | Breeze-Eastern Llc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| BL1555 PRIMARY | Breeze-Eastern Llc (USA) |
| Reference | Meaning |
|---|---|
| 1680H34-016-1 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
NSN 1680-00-560-6434 is a Cover,gear Box, manufactured by Breeze-Eastern Llc, classified under FSC 1680, Miscellaneous Aircraft Accessories and Components. Status: active.
NSN 1680-00-560-6434 has 1 manufacturer part number on file: BL1555 (Breeze-Eastern Llc).
1 possible match (shared part number, not a government interchangeability claim): 5320-01-143-9219. Verify interchangeability with system specifications before substitution.
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 1680-00-560-6434 has DEMIL Code B. 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.