The O-Ring,aircraft,mat, cataloged under National Stock Number 5331-01-563-0731, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Northrop Grumman Systems Corporation. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | O-Ring,aircraft,mat |
| FSC / FSG | 5331 — O-ring (FSG 53) |
| Manufacturers | Northrop Grumman Systems Corporation (CAGE 0W6H8); Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (CAGE 78286) |
| Parameter | Value |
|---|---|
| NSN | 5331-01-563-0731 |
| Primary Part Number | 269A6032 |
| Item Name | O-Ring,aircraft,mat |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Northrop Grumman Systems Corporation |
| 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 |
|---|---|
| 269A6032 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| 269A6032-003 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| 269A6032-003 PRIMARY | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA) |
| 269A6032 | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA) |
| Reference | Meaning |
|---|---|
| 269A6032-003 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
| 269A6032 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
| 269A6032 | 5/9 Secondary reference Schweizer Aircraft Corp. |
| 269A6032-003 | 3/9 Design control — primary reference Schweizer Aircraft Corp. |
NSN 5331-01-563-0731 is a O-Ring,aircraft,mat, manufactured by Northrop Grumman Systems Corporation, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-563-0731 has 4 manufacturer part numbers on file: 269A6032 (Northrop Grumman Systems Corporation), 269A6032-003 (Northrop Grumman Systems Corporation), 269A6032-003 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp), 269A6032 (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 5331-01-563-0731 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.