The O-Ring, cataloged under National Stock Number 5331-01-201-3623, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Cummins Inc.. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Parameter | Value |
|---|---|
| NSN | 5331-01-201-3623 |
| Primary Part Number | 145530 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Cummins Inc. |
| Status | ACTIVE |
| Material | RUBBER |
| 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 |
|---|---|
| 145530 | Cummins South Pacific Pty Ltd Head Office (AUS) |
| 145530 PRIMARY | Cummins Inc. (USA) |
| 2 0095-121 | Bae Systems Hagglunds Aktiebolag (SWE) |
| 145530 | Cummins Inc (USA) |
| Reference | Meaning |
|---|---|
| 3043923 | 5/1 Secondary reference Cummins Ltd |
| 3043923 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| 2 0095-121 | 5/9 Secondary reference Bae Systems Hagglunds Ab |
NSN 5331-01-201-3623 is a O-Ring, manufactured by Cummins Inc., classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-201-3623 has 4 manufacturer part numbers on file: 145530 (Cummins South Pacific Pty Ltd Head Office), 145530 (Cummins Inc.), 2 0095-121 (Bae Systems Hagglunds Aktiebolag), 145530 (Cummins Inc).
1 possible match (shared part number, not a government interchangeability claim): 5331-01-558-8414. Verify interchangeability with system specifications before substitution.
Key specifications for 145530: End Item Identification: MRAP - COMMON NSN - USED ON 3 MRAP VARIANTS AND 24 OTHER WEAPON SYSTEMS; MEDIUM MINE PROTECTED VEHICLE - MMPV; Material: RUBBER. 1 specification is documented in the U.S. Government catalog.
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.