The O-Ring, cataloged under National Stock Number 5331-01-577-2257, 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3 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-577-2257 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Status | ACTIVE |
| Cross-Sectional Height | 0.070 INCHES NOMINAL IN |
| Center Hole Diameter | 0.364 INCHES NOMINAL IN |
| Material | RUBBER SILICONE CLASS Q |
| 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 |
|---|---|
| 551530 | 3/9 Design control — primary reference Pyro-Chem Inc Div of Baker Industries Inc Sub of Borg-Warner Corp |
NSN 5331-01-577-2257 is a O-Ring, classified under FSC 5331, O-ring. Status: active.
Key specifications for 5331-01-577-2257: Cross-Sectional Height: 0.070 INCHES NOMINAL IN; Center Hole Diameter: 0.364 INCHES NOMINAL IN; Part Name Assigned by Controlling Agency: 10 X WET NOZZLE O-RING; End Item Identification: KITCHEN KNIGHT II FIRE SUPPRESSION SYSTEM. 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.