The O-Ring, cataloged under National Stock Number 5331-00-930-4401, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Amphenol Corp Div Amphenol Aerospace Operations. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | Amphenol Corp Div Amphenol Aerospace Operations (CAGE 77820) |
| Parameter | Value |
|---|---|
| NSN | 5331-00-930-4401 |
| Primary Part Number | 10-242997-12 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Amphenol Corp Div Amphenol Aerospace Operations |
| 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 |
|---|---|
| 10-242997-12 PRIMARY | Amphenol Corp Div Amphenol Aerospace Operations (USA) |
| Reference | Meaning |
|---|---|
| SAE AMS3325 | 5/9 Secondary reference U.S. Government activity |
| 72667 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| SAE AMS3325 | 5/1 Secondary reference Sae International Dba Sae International |
| SAE AMS3325D | 5/9 Secondary reference U.S. Government activity |
NSN 5331-00-930-4401 is a O-Ring, manufactured by Amphenol Corp Div Amphenol Aerospace Operations, classified under FSC 5331, O-ring. Status: active.
NSN 5331-00-930-4401 has 1 manufacturer part number on file: 10-242997-12 (Amphenol Corp Div Amphenol Aerospace Operations).
1 possible match (shared part number, not a government interchangeability claim): 1650-01-125-2803. 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.