The O-Ring, cataloged under National Stock Number 5331-01-657-7130, 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 3 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 | 5331-01-657-7130 |
| Primary Part Number | SK12-2N-M-115 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Hydraforce Inc |
| Status | ACTIVE |
| Cross-Sectional Height | 0.126 INCHES MINIMUM IN |
| Center Hole Diameter | 1.2138 INCHES MINIMUM IN |
| Material | RUBBER FLUOROCARBON CLASS FPM |
| 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 |
|---|---|
| SK12-2N-M-115 PRIMARY | Hydraforce Inc (USA) |
NSN 5331-01-657-7130 is a O-Ring, manufactured by Hydraforce Inc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-657-7130 has 1 manufacturer part number on file: SK12-2N-M-115 (Hydraforce Inc).
Key specifications for SK12-2N-M-115: Cross-Sectional Height: 0.126 INCHES MINIMUM IN; Center Hole Diameter: 1.2138 INCHES MINIMUM IN; Material: RUBBER FLUOROCARBON CLASS FPM. 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.