The Gasket, cataloged under National Stock Number 5330-01-573-4026, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. Government technical data includes 7 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 5330-01-573-4026 |
| Item Name | Gasket |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Status | ACTIVE |
| Style Designator | CIRCULAR |
| Bearing Surface Width | 0.313 INCHES NOMINAL IN |
| Outside Diameter | 3.000 INCHES NOMINAL IN |
| Gage Ring Outside Diameter | 3.406 INCHES NOMINAL IN |
| Aperture Diameter | 2.780 INCHES NOMINAL IN |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR INNER RING |
| Material | COPPER ALLOY OUTER RING |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 803-1385721-81-19 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5330-01-573-4026 is a Gasket, classified under FSC 5330, Packing and Gasket Materials. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 5330-01-578-5561, 5330-01-580-1467. Verify interchangeability with system specifications before substitution.
Key specifications for 5330-01-573-4026: Style Designator: CIRCULAR; Bearing Surface Width: 0.313 INCHES NOMINAL IN; Outside Diameter: 3.000 INCHES NOMINAL IN; Gage Ring Outside Diameter: 3.406 INCHES NOMINAL IN. 7 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). 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.