The O-Ring, cataloged under National Stock Number 5331-01-291-7879, 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 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-291-7879 |
| Primary Part Number | V0747 5-256 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Parker-Hannifin Corp Div O-Ring Division |
| Status | ACTIVE |
| Cross-Sectional Height | 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN |
| Hardness Rating | 75.0 SHORE DUROMETER A NOMINAL |
| Material Document and Classification | SAE AMS7278 ASSN STD SINGLE MATERIAL RESPONSE |
| Center Hole Diameter | 0.699 INCHES MINIMUM AND 0.715 INCHES MAXIMUM 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 |
|---|---|
| V0747 5-256 PRIMARY | Parker-Hannifin Corp Div O-Ring Division (USA) |
| V0747 5-256 | Parker Hannifin France SAS (FRA) |
| Reference | Meaning |
|---|---|
| 5-256 V747-75 | 5/9 Secondary reference Parker Hannifin Gmbh O-Ring Division |
| 5-256V747-75 | 5/9 Secondary reference Parker Hannifin France SAS |
| 5-256V747-75 | 5/9 Secondary reference Parker-Hannifin Corp Div O-Ring Division |
NSN 5331-01-291-7879 is a O-Ring, manufactured by Parker-Hannifin Corp Div O-Ring Division, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-291-7879 has 2 manufacturer part numbers on file: V0747 5-256 (Parker-Hannifin Corp Div O-Ring Division), V0747 5-256 (Parker Hannifin France SAS).
Key specifications for V0747 5-256: Cross-Sectional Height: 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN; Hardness Rating: 75.0 SHORE DUROMETER A NOMINAL; Material Document and Classification: SAE AMS7278 ASSN STD SINGLE MATERIAL RESPONSE; Center Hole Diameter: 0.699 INCHES MINIMUM AND 0.715 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.