The O-Ring, cataloged under National Stock Number 5331-01-620-5240, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Air-Way Manufacturing Company. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | O-Ring |
| FSC / FSG | 5331 — O-ring (FSG 53) |
| Manufacturers | Air-Way Manufacturing Company (CAGE 22031); U S Army Tank Automotive Command Amsta-Im-Mm (CAGE 19207); General Dynamics Land Systems Canadacorp (CAGE 56161) |
| Parameter | Value |
|---|---|
| NSN | 5331-01-620-5240 |
| Primary Part Number | F4003-8 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Air-Way Manufacturing Company |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| F4003-8 PRIMARY | Air-Way Manufacturing Company (USA) |
| 12663079 F4003-8 | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| 10708877-001 | General Dynamics Land Systems Canadacorp (CAN) |
| Reference | Meaning |
|---|---|
| 12663079 | D/9 Drawing number reference only U S Army Tank Automotive Command Amsta-Im-Mm |
NSN 5331-01-620-5240 is a O-Ring, manufactured by Air-Way Manufacturing Company, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-620-5240 has 3 manufacturer part numbers on file: F4003-8 (Air-Way Manufacturing Company), 12663079 F4003-8 (U S Army Tank Automotive Command Amsta-Im-Mm), 10708877-001 (General Dynamics Land Systems Canadacorp).
1 possible match (shared part number, not a government interchangeability claim): 5331-01-724-4084. 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.
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.