The O-Ring, cataloged under National Stock Number 5331-01-658-5021, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Trelleborg Sealing Solutions Us, 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 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-658-5021 |
| Primary Part Number | A-468 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Trelleborg Sealing Solutions Us, Inc. |
| Status | ACTIVE |
| Cross-Sectional Height | 6.99 MILLIMETERS NOMINAL MM |
| Outside Diameter | 494.16 MILLIMETERS NOMINAL MM |
| 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 |
|---|---|
| A-468 PRIMARY | Trelleborg Sealing Solutions Us, Inc. (USA) |
NSN 5331-01-658-5021 is a O-Ring, manufactured by Trelleborg Sealing Solutions Us, Inc., classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-658-5021 has 1 manufacturer part number on file: A-468 (Trelleborg Sealing Solutions Us, Inc.).
1 possible match (shared part number, not a government interchangeability claim): 6650-01-679-0864. Verify interchangeability with system specifications before substitution.
Key specifications for A-468: Cross-Sectional Height: 6.99 MILLIMETERS NOMINAL MM; Outside Diameter: 494.16 MILLIMETERS NOMINAL MM; Special Features: MATTDCHLOROPRENE 70 DUROMETER; Part Name Assigned by Controlling Agency: SEAL O-RING A-468. 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.