The Arm Assembly,gun Si, cataloged under National Stock Number 1270-00-211-6682, is classified within Federal Supply Class 1270 (Aircraft Gunnery Fire Control Components) of the Fire Control Equipment group. The manufacturer of record is General Motors Llc Dba General Motors Llc. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Arm Assembly,gun Si |
| FSC / FSG | 1270 — Aircraft Gunnery Fire Control Components (FSG 12) |
| Manufacturers | General Motors Corp (CAGE 24617); General Motors Llc Dba General Motors Llc (CAGE 7X677); Lockheed Martin Corporation Div Rms - Mitchel Field (CAGE 56232) |
| Parameter | Value |
|---|---|
| NSN | 1270-00-211-6682 |
| Primary Part Number | 5581377 |
| Item Name | Arm Assembly,gun Si |
| FSC / FSG | 1270 / 12 — Aircraft Gunnery Fire Control Components |
| Manufacturer | General Motors Llc Dba General Motors Llc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 5581377 | General Motors Corp (USA) |
| 5581377 PRIMARY | General Motors Llc Dba General Motors Llc (USA) |
| 807655 | Lockheed Martin Corporation Div Rms - Mitchel Field (USA) |
| Reference | Meaning |
|---|---|
| 5581377 | 5/9 Secondary reference General Motors Llc Dba General Motors |
NSN 1270-00-211-6682 is a Arm Assembly,gun Si, manufactured by General Motors Llc Dba General Motors Llc, classified under FSC 1270, Aircraft Gunnery Fire Control Components. Status: active.
NSN 1270-00-211-6682 has 3 manufacturer part numbers on file: 5581377 (General Motors Corp), 5581377 (General Motors Llc Dba General Motors Llc), 807655 (Lockheed Martin Corporation Div Rms - Mitchel Field).
2 possible matches (shared part number, not a government interchangeability claim): 5905-01-030-7622, 2590-01-196-1290. 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 1270-00-211-6682 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.