The O-Ring, cataloged under National Stock Number 5331-00-613-6522, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-00-613-6522 |
| Primary Part Number | 2-117N951-75 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division |
| Status | ACTIVE |
| Temp Rating | -25.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF |
| Cross-Sectional Height | 0.103 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN |
| Outside Diameter | 0.989 INCHES MINIMUM AND 1.021 INCHES MAXIMUM IN |
| Hardness Rating | 75.0 SHORE DUROMETER A NOMINAL |
| Elongation Percentage | 125 MAXIMUM |
| Center Hole Diameter | 0.789 INCHES MINIMUM AND 0.809 INCHES MAXIMUM IN |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR |
| 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 |
|---|---|
| 2-117N951-75 | Parker-Hannifin Corp Div O-Ring Division (USA) |
| 2-117N951-75 PRIMARY | Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division (USA) |
| 4M8303 PRIMARY | Caterpillar Inc Div Caterpillar Defense (USA) |
| 4M8303 | Finning (uk) Ltd (GBR) |
| Reference | Meaning |
|---|---|
| 137057-117ES | 5/9 Secondary reference Eriks B.v. |
| IPD4M8303 | 5/9 Secondary reference Industrial Parts Depot, Llc Dba Ipd |
NSN 5331-00-613-6522 is a O-Ring, manufactured by Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division, classified under FSC 5331, O-ring. Status: active.
NSN 5331-00-613-6522 has 4 manufacturer part numbers on file: 2-117N951-75 (Parker-Hannifin Corp Div O-Ring Division), 2-117N951-75 (Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division), 4M8303 (Caterpillar Inc Div Caterpillar Defense), 4M8303 (Finning (uk) Ltd).
Key specifications for 2-117N951-75: Temp Rating: -25.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF; Cross-Sectional Height: 0.103 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN; Outside Diameter: 0.989 INCHES MINIMUM AND 1.021 INCHES MAXIMUM IN; Hardness Rating: 75.0 SHORE DUROMETER A NOMINAL. 7 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.