The O-Ring, cataloged under National Stock Number 5331-00-828-3521, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Aerojet Rocketdyne 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-00-828-3521 |
| Primary Part Number | AS8040E1-902 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Aerojet Rocketdyne Inc |
| Status | ACTIVE |
| Cross-Sectional Height | 0.064 INCHES NOMINAL IN |
| Material | PLASTIC POLYPROPYLENE |
| 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 |
|---|---|
| AS8040E1-902 PRIMARY | Aerojet Rocketdyne Inc (USA) |
| Reference | Meaning |
|---|---|
| AS8040E1-902 | C/1 Advisory reference — outside the item-of-supply concept Trelleborg Sealing Solutions Us, Inc. |
| AS8040E1-902 | 3/9 Design control — primary reference Trelleborg Sealing Solutions El Segundo, Inc. Dba Tss El Segundo |
| A 6689.902.142 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
NSN 5331-00-828-3521 is a O-Ring, manufactured by Aerojet Rocketdyne Inc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-00-828-3521 has 1 manufacturer part number on file: AS8040E1-902 (Aerojet Rocketdyne Inc).
2 possible matches (shared part number, not a government interchangeability claim): 5330-01-167-8413, 5331-01-210-7462. Verify interchangeability with system specifications before substitution.
Key specifications for AS8040E1-902: Cross-Sectional Height: 0.064 INCHES NOMINAL IN; Material: PLASTIC POLYPROPYLENE. 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.