The O-Ring, cataloged under National Stock Number 5331-01-255-3377, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. Government technical data includes 5 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-255-3377 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Status | ACTIVE |
| Cross-Sectional Height | 0.094 INCHES NOMINAL IN |
| Criticality Code Justification | ZZZY |
| Center Hole Diameter | 0.500 INCHES NOMINAL IN |
| Material | RUBBER CHLOROPRENE CLASS CR |
| Reference Number Differentiating Characteristics | MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Reference | Meaning |
|---|---|
| 22546-112 | 5/1 Secondary reference Harris Environmental Systems, Inc. |
| 3974-3-BS PC3 | 3/1 Design control — primary reference Harris Environmental Systems, Inc. |
NSN 5331-01-255-3377 is a O-Ring, classified under FSC 5331, O-ring. Status: active.
Key specifications for 5331-01-255-3377: Cross-Sectional Height: 0.094 INCHES NOMINAL IN; Criticality Code Justification: ZZZY; Center Hole Diameter: 0.500 INCHES NOMINAL IN; Material: RUBBER CHLOROPRENE CLASS CR. 5 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.