The O-Ring, cataloged under National Stock Number 5331-00-851-2186, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. Government technical data includes 2 specifications, cited from the U.S. Government catalog. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 5331-00-851-2186 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Status | ACTIVE |
| Cross-Sectional Height | 0.062 INCHES NOMINAL IN |
| 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 |
| Reference | Meaning |
|---|---|
| SAE AS568-012 | 3/9 Design control — primary reference U.S. Government activity |
| SAE AMS7274 | 5/1 Secondary reference Sae International Dba Sae International |
| SAE AMS7274 | 5/9 Secondary reference U.S. Government activity |
| 2938-3 | 5/9 Secondary reference Zf Industrieantriebe Witten Gmbh |
| SAE AS568-012 | 3/1 Design control — primary reference Sae International Dba Sae International |
| 2938-3 | 5/9 Secondary reference Siemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives |
NSN 5331-00-851-2186 is a O-Ring, classified under FSC 5331, O-ring. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 5342-01-382-5021, 5930-01-596-4994. Verify interchangeability with system specifications before substitution.
Key specifications for 5331-00-851-2186: Cross-Sectional Height: 0.062 INCHES NOMINAL IN; Material: RUBBER. 2 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.