The O-Ring, cataloged under National Stock Number 5331-01-457-1554, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Caterpillar Inc Div Caterpillar Defense. The record lists 5 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Item Name | O-Ring |
| FSC / FSG | 5331 — O-ring (FSG 53) |
| Manufacturers | Navantia - Propulsion Y Energia Motores - Cartagena (CAGE 409BB); Hastings Deering (aust) Pty Ltd (CAGE ZF912); William Adams Pty Ltd (CAGE Z2ZA9); Westrac Equipment Pty Ltd (CAGE Z02C9); Caterpillar Inc Div Caterpillar Defense (CAGE 11083) |
| Parameter | Value |
|---|---|
| NSN | 5331-01-457-1554 |
| Primary Part Number | 5P-8066 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Caterpillar Inc Div Caterpillar Defense |
| 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 |
|---|---|
| 5P-8066 | Navantia - Propulsion Y Energia Motores - Cartagena (ESP) |
| 5P-8066 | Hastings Deering (aust) Pty Ltd (AUS) |
| 5P-8066 | William Adams Pty Ltd (AUS) |
| 5P-8066 | Westrac Equipment Pty Ltd (AUS) |
| 5P-8066 PRIMARY | Caterpillar Inc Div Caterpillar Defense (USA) |
| Reference | Meaning |
|---|---|
| 1002131 | 5/9 Secondary reference General Dynamics Land Systems - Force Protection Inc. Dba Gdls Div Gdls-Fp |
| 5P-8066 | 5/9 Secondary reference Caterpillar of Australia Pty Ltd |
| 7HA994 | 5/9 Secondary reference Oshkosh Corp |
NSN 5331-01-457-1554 is a O-Ring, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-457-1554 has 5 manufacturer part numbers on file: 5P-8066 (Navantia - Propulsion Y Energia Motores - Cartagena), 5P-8066 (Hastings Deering (aust) Pty Ltd), 5P-8066 (William Adams Pty Ltd), 5P-8066 (Westrac Equipment Pty Ltd), 5P-8066 (Caterpillar Inc Div Caterpillar Defense).
1 possible match (shared part number, not a government interchangeability claim): 5331-01-671-7121. 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.