The O-Ring, cataloged under National Stock Number 5331-01-526-5006, 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. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | O-Ring |
| FSC / FSG | 5331 — O-ring (FSG 53) |
| Manufacturers | United Seal & Rubber Company, Inc. Dba United Seal & Rubber Co Inc (CAGE 4R096) |
| Parameter | Value |
|---|---|
| NSN | 5331-01-526-5006 |
| Primary Part Number | U951409-100 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | United Seal & Rubber Company, Inc. Dba United Seal & Rubber Co Inc |
| Status | ACTIVE |
| 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 |
|---|---|
| U951409-100 PRIMARY | United Seal & Rubber Company, Inc. Dba United Seal & Rubber Co Inc (USA) |
| Reference | Meaning |
|---|---|
| 12467492 | 7/2 Vendor item drawing reference U S Army Tank Automotive Command Amsta-Im-Mm |
NSN 5331-01-526-5006 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 5331-01-526-5006 has 1 manufacturer part number on file: U951409-100 (United Seal & Rubber Company, Inc. Dba United Seal & Rubber Co Inc).
1 possible match (shared part number, not a government interchangeability claim): 5331-01-591-1419. Verify interchangeability with system specifications before substitution.
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.