The O-Ring, cataloged under National Stock Number 5331-01-031-8257, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Parker-Hannifin Corp Div O-Ring Division. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-031-8257 |
| Primary Part Number | 2507294-51 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-Ring |
| Manufacturer | Parker-Hannifin Corp Div O-Ring Division |
| Status | ACTIVE |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR |
| Cross-Sectional Height | 0.084 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN |
| Center Hole Diameter | 0.635 INCHES MINIMUM AND 0.653 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 2507294-51 | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| 2507294-51 | Parker Brownsville Servicio S.a. De C.v. (MEX) |
| 3-908 N674-7 | Parker-Hannifin Corp Div O-Ring Division (USA) |
| 2507294-51 | Naval Sea Systems Command (USA) |
| 2507294-51 PRIMARY | Parker-Hannifin Corp Div O-Ring Division (USA) |
| 2507294-51 | Parco, Llc (USA) |
NSN 5331-01-031-8257 is a O-Ring, manufactured by Parker-Hannifin Corp Div O-Ring Division, classified under FSC 5331 (O-Ring). Status: active.
NSN 5331-01-031-8257 has 6 cross-referenced part numbers: 2507294-51 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 2507294-51 (Parker Brownsville Servicio S.a. De C.v.), 3-908 N674-7 (Parker-Hannifin Corp Div O-Ring Division), 2507294-51 (Naval Sea Systems Command), 2507294-51 (Parker-Hannifin Corp Div O-Ring Division) and 1 more.
There are 3 known substitutes for 5331-01-031-8257: 5331-00-020-0105, 5331-00-968-2193, 5331-00-984-3786. Verify interchangeability with system specifications before substitution.
Key specifications for 2507294-51: Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR; Cross-Sectional Height: 0.084 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN; Center Hole Diameter: 0.635 INCHES MINIMUM AND 0.653 INCHES MAXIMUM IN. 3 total characteristics are documented in the Federal Logistics Information System.