The O-Ring, cataloged under National Stock Number 5331-00-165-4573, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. Government technical data includes 3 specifications, cited from the U.S. Government catalog. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-00-165-4573 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Status | ACTIVE |
| Cross-Sectional Height | 0.084 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN |
| Center Hole Diameter | 0.639 INCHES MINIMUM AND 0.649 INCHES MAXIMUM IN |
| Material | RUBBER POLYMETHYLENE-PERFLUOROALKYLENE CLASS FKM |
| 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 |
|---|---|
| 10117055 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| 645003FF8 | 5/2 Secondary reference U.S. Government activity |
| 645003FF8 | 3/9 Design control — primary reference Ontic Engineering & Manufacturing, Inc Dba Ontic Us |
| 998980-908ES | 5/9 Secondary reference Eriks B.v. |
| 645003FF8 | 5/2 Secondary reference U.S. Government activity |
NSN 5331-00-165-4573 is a O-Ring, classified under FSC 5331, O-ring. Status: active.
Key specifications for 5331-00-165-4573: Cross-Sectional Height: 0.084 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN; Center Hole Diameter: 0.639 INCHES MINIMUM AND 0.649 INCHES MAXIMUM IN; Material: RUBBER POLYMETHYLENE-PERFLUOROALKYLENE CLASS FKM. 3 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.