The O-Ring, cataloged under National Stock Number 5331-01-529-6631, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Parker-Hannifin Corp Div O-Ring Division. Government technical data includes 5 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-529-6631 |
| Primary Part Number | E603 2-264 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Parker-Hannifin Corp Div O-Ring Division |
| Status | ACTIVE |
| Temp Rating | -70.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF |
| Cross-Sectional Height | 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN |
| Hardness Rating | 70.0 SHORE DUROMETER A NOMINAL |
| Center Hole Diameter | 7.439 INCHES MINIMUM AND 7.529 INCHES MAXIMUM IN |
| Material | RUBBER ETHYLENE-PROPYLENE-DIENE CLASS EPDM |
| 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 |
|---|---|
| 2-264 E0603-70 | Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division (USA) |
| 7385926 FIND NO. 95 | Naval Sea Systems Command (USA) |
| 2-264 E0603-70 | Parker-Hannifin Corp Div O-Ring Division (USA) |
| E603 2-264 PRIMARY | Parker-Hannifin Corp Div O-Ring Division (USA) |
NSN 5331-01-529-6631 is a O-Ring, manufactured by Parker-Hannifin Corp Div O-Ring Division, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-529-6631 has 4 manufacturer part numbers on file: 2-264 E0603-70 (Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division), 7385926 FIND NO. 95 (Naval Sea Systems Command), 2-264 E0603-70 (Parker-Hannifin Corp Div O-Ring Division), E603 2-264 (Parker-Hannifin Corp Div O-Ring Division).
Key specifications for E603 2-264: Temp Rating: -70.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF; Cross-Sectional Height: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN; Hardness Rating: 70.0 SHORE DUROMETER A NOMINAL; Center Hole Diameter: 7.439 INCHES MINIMUM AND 7.529 INCHES MAXIMUM IN. 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.