The Door Assembly,fwd S, cataloged under National Stock Number 1680-01-573-8724, is classified within Federal Supply Class 1680 (Miscellaneous Aircraft Accessories and Components) of the Aircraft Components and Accessories group. The manufacturer of record is Northrop Grumman Systems Corporation. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Item Name | Door Assembly,fwd S |
| FSC / FSG | 1680 — Miscellaneous Aircraft Accessories and Components (FSG 16) |
| Manufacturers | Northrop Grumman Systems Corporation (CAGE 0W6H8); Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (CAGE 78286) |
| Parameter | Value |
|---|---|
| NSN | 1680-01-573-8724 |
| Primary Part Number | 40B3251-003 |
| Item Name | Door Assembly,fwd S |
| FSC / FSG | 1680 / 16 — Miscellaneous Aircraft Accessories and Components |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 40B3251-003 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| 40B3251-003 PRIMARY | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA) |
| Reference | Meaning |
|---|---|
| 40B3251-003 | 3/9 Design control — primary reference Schweizer Aircraft Corp. |
| 40B3251-003 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
NSN 1680-01-573-8724 is a Door Assembly,fwd S, manufactured by Northrop Grumman Systems Corporation, classified under FSC 1680, Miscellaneous Aircraft Accessories and Components. Status: active.
NSN 1680-01-573-8724 has 2 manufacturer part numbers on file: 40B3251-003 (Northrop Grumman Systems Corporation), 40B3251-003 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp).
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 1680-01-573-8724 has DEMIL Code Q. 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.