The O-Ring, cataloged under National Stock Number 5331-01-645-7548, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Military Petroleum and Water Systems Inc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-645-7548 |
| Primary Part Number | MP70448 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Military Petroleum and Water Systems Inc |
| Status | ACTIVE |
| Cross-Sectional Height | 0.275 INCHES NOMINAL IN |
| Outside Diameter | 10.0 INCHES NOMINAL IN |
| Center Hole Diameter | 9.5 INCHES NOMINAL IN |
| 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 |
|---|---|
| MP70448 PRIMARY | Military Petroleum and Water Systems Inc (USA) |
| Reference | Meaning |
|---|---|
| MP70448 | 5/9 Secondary reference Aef-Performance Llc |
NSN 5331-01-645-7548 is a O-Ring, manufactured by Military Petroleum and Water Systems Inc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-645-7548 has 1 manufacturer part number on file: MP70448 (Military Petroleum and Water Systems Inc).
Key specifications for MP70448: Cross-Sectional Height: 0.275 INCHES NOMINAL IN; Outside Diameter: 10.0 INCHES NOMINAL IN; Center Hole Diameter: 9.5 INCHES NOMINAL IN; Part Name Assigned by Controlling Agency: O-RING. 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.