The O-Ring, cataloged under National Stock Number 5331-01-031-1336, 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 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-031-1336 |
| Primary Part Number | 2507294-15 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Parker-Hannifin Corp Div O-Ring Division |
| Status | ACTIVE |
| Cross-Sectional Height | 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN |
| Center Hole Diameter | 1.165 INCHES MINIMUM AND 1.187 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 |
|---|---|
| 2507294-15 PRIMARY | Parker-Hannifin Corp Div O-Ring Division (USA) |
| Reference | Meaning |
|---|---|
| 2507294-15 | 7/2 Vendor item drawing reference Naval Sea Systems Command |
| 01873 | 5/9 Secondary reference Defense Logistics Agency Dba Defense Supply Center Philadelphia |
| 2-025 N674-7 | 5/9 Secondary reference Parker-Hannifin Corp Div O-Ring Division |
| 2507294-15 | 5/9 Secondary reference Parco, Llc |
| 2507294-15 | 5/9 Secondary reference Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
NSN 5331-01-031-1336 is a O-Ring, manufactured by Parker-Hannifin Corp Div O-Ring Division, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-031-1336 has 1 manufacturer part number on file: 2507294-15 (Parker-Hannifin Corp Div O-Ring Division).
2 possible matches (shared part number, not a government interchangeability claim): 5331-01-081-7401, 5331-01-205-4263. Verify interchangeability with system specifications before substitution.
Key specifications for 2507294-15: Cross-Sectional Height: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN; Center Hole Diameter: 1.165 INCHES MINIMUM AND 1.187 INCHES MAXIMUM IN; Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR. 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.