The O-Ring, cataloged under National Stock Number 5331-01-676-0641, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Hydraforce Inc. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-676-0641 |
| Primary Part Number | SK50-2P-B |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Hydraforce Inc |
| Status | ACTIVE |
| Center Hole Diameter | 0.875 INCHES NOMINAL IN |
| Material | RUBBER POLYURETHANE |
| 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 |
|---|---|
| SK50-2P-B PRIMARY | Hydraforce Inc (USA) |
NSN 5331-01-676-0641 is a O-Ring, manufactured by Hydraforce Inc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-676-0641 has 1 manufacturer part number on file: SK50-2P-B (Hydraforce Inc).
Key specifications for SK50-2P-B: Center Hole Diameter: 0.875 INCHES NOMINAL IN; Part Name Assigned by Controlling Agency: O-RING TOWARD BOTTOM OF CAVITY; End Item Identification: 3810-01-607-9674; Material: RUBBER POLYURETHANE. 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.