The Spacer,mounting, cataloged under National Stock Number 1280-00-628-6739, is classified within Federal Supply Class 1280 (Aircraft Bombing Fire Control Components) of the Fire Control Equipment group. The manufacturer of record is Lockheed Martin Corporation Div Rotary and Mission Systems. The record lists 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Spacer,mounting |
| FSC / FSG | 1280 — Aircraft Bombing Fire Control Components (FSG 12) |
| Manufacturers | Lockheed Martin Corporation Div Rotary and Mission Systems (CAGE 03640); International Business Machines Corp Parts Order Center Dept E - 54 (CAGE 0B6S1) |
| Parameter | Value |
|---|---|
| NSN | 1280-00-628-6739 |
| Primary Part Number | 6421117 |
| Item Name | Spacer,mounting |
| FSC / FSG | 1280 / 12 — Aircraft Bombing Fire Control Components |
| Manufacturer | Lockheed Martin Corporation Div Rotary and Mission Systems |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 6421117 PRIMARY | Lockheed Martin Corporation Div Rotary and Mission Systems (USA) |
| 6421117 | International Business Machines Corp Parts Order Center Dept E - 54 (USA) |
| Reference | Meaning |
|---|---|
| 6421117 | 5/9 Secondary reference International Business Machines Corporation Dba IBM |
NSN 1280-00-628-6739 is a Spacer,mounting, manufactured by Lockheed Martin Corporation Div Rotary and Mission Systems, classified under FSC 1280, Aircraft Bombing Fire Control Components. Status: active.
NSN 1280-00-628-6739 has 2 manufacturer part numbers on file: 6421117 (Lockheed Martin Corporation Div Rotary and Mission Systems), 6421117 (International Business Machines Corp Parts Order Center Dept E - 54).
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
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.