The O-Ring, cataloged under National Stock Number 5331-01-534-0526, 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 5 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5331-01-534-0526 |
| Primary Part Number | ORAR00138-N7083 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Trelleborg Sealing Solutions Us, Inc. |
| Status | ACTIVE |
| Temp Rating | -30.0 CELSIUS AND 100.0 CELSIUS DEGC |
| Cross-Sectional Height | 2.620 MILLIMETERS NOMINAL MM |
| Hardness Rating | 65.0 SHORE DUROMETER A MINIMUM AND 75.0 SHORE DUROMETER A MAXIMUM |
| Center Hole Diameter | 53.640 MILLIMETERS NOMINAL MM |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR |
| 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 |
|---|---|
| ORAR00138-N7083 PRIMARY | Trelleborg Sealing Solutions Us, Inc. (USA) |
| Reference | Meaning |
|---|---|
| ORAR00-138-N7038 | 5/9 Secondary reference Trelleborg Sealing Solutions Us, Inc. |
NSN 5331-01-534-0526 is a O-Ring, manufactured by Trelleborg Sealing Solutions Us, Inc., classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-534-0526 has 1 manufacturer part number on file: ORAR00138-N7083 (Trelleborg Sealing Solutions Us, Inc.).
Key specifications for ORAR00138-N7083: Temp Rating: -30.0 CELSIUS AND 100.0 CELSIUS DEGC; Cross-Sectional Height: 2.620 MILLIMETERS NOMINAL MM; Hardness Rating: 65.0 SHORE DUROMETER A MINIMUM AND 75.0 SHORE DUROMETER A MAXIMUM; Center Hole Diameter: 53.640 MILLIMETERS NOMINAL MM. 5 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.