The O-Ring, cataloged under National Stock Number 5331-01-538-6263, 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 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5331-01-538-6263 |
| Primary Part Number | V951447-2 |
| 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 | 0.103 INCHES NOMINAL IN |
| Center Hole Diameter | 6.260 INCHES NOMINAL IN |
| Material | RUBBER |
| 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 |
|---|---|
| V951447-2 PRIMARY | United Seal & Rubber Company, Inc. Dba United Seal & Rubber Co Inc (USA) |
| Reference | Meaning |
|---|---|
| 12474029-2 | 7/2 Vendor item drawing reference U S Army Tank Automotive Command Amsta-Im-Mm |
NSN 5331-01-538-6263 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 5331-01-538-6263 has 1 manufacturer part number on file: V951447-2 (United Seal & Rubber Company, Inc. Dba United Seal & Rubber Co Inc).
Key specifications for V951447-2: Cross-Sectional Height: 0.103 INCHES NOMINAL IN; Center Hole Diameter: 6.260 INCHES NOMINAL IN; End Item Identification: SWITCHBOARD, FIRE CONTROL P/N: 57K4638; Material: RUBBER. 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.