The O-Ring, cataloged under National Stock Number 5331-01-552-4581, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is United Seal & Rubber Company, Inc. Dba United Seal & Rubber Co Inc. Government technical data includes 2 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-552-4581 |
| Primary Part Number | USR2007001-100 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | United Seal & Rubber Company, Inc. Dba United Seal & Rubber Co Inc |
| Status | ACTIVE |
| Cross-Sectional Height | 0.070 INCHES NOMINAL IN |
| Center Hole Diameter | 8.325 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 |
|---|---|
| USR2007001-100 PRIMARY | United Seal & Rubber Company, Inc. Dba United Seal & Rubber Co Inc (USA) |
NSN 5331-01-552-4581 is a O-Ring, manufactured by United Seal & Rubber Company, Inc. Dba United Seal & Rubber Co Inc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-552-4581 has 1 manufacturer part number on file: USR2007001-100 (United Seal & Rubber Company, Inc. Dba United Seal & Rubber Co Inc).
Key specifications for USR2007001-100: Cross-Sectional Height: 0.070 INCHES NOMINAL IN; Center Hole Diameter: 8.325 INCHES NOMINAL IN; Part Name Assigned by Controlling Agency: PREFORMED,O-RING; End Item Identification: AIRCRAFT,SOF. 2 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.