The O-Ring, cataloged under National Stock Number 5331-01-557-0532, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is General Dynamics Land Systems - Force Protection Inc. Dba Gdls Div Gdls-Fp. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-557-0532 |
| Primary Part Number | 2000187 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | General Dynamics Land Systems - Force Protection Inc. Dba Gdls Div Gdls-Fp |
| 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 |
|---|---|
| 2000187 PRIMARY | General Dynamics Land Systems - Force Protection Inc. Dba Gdls Div Gdls-Fp (USA) |
NSN 5331-01-557-0532 is a O-Ring, manufactured by General Dynamics Land Systems - Force Protection Inc. Dba Gdls Div Gdls-Fp, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-557-0532 has 1 manufacturer part number on file: 2000187 (General Dynamics Land Systems - Force Protection Inc. Dba Gdls Div Gdls-Fp).
2 possible matches (shared part number, not a government interchangeability claim): 4720-01-663-3202, 5935-01-725-9017. Verify interchangeability with system specifications before substitution.
Key specifications for 2000187: End Item Identification: MRAP - UNIQUE NSN - USED ON 3 MRAP VARIANTS. 0 specifications are 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.