The Gasket, cataloged under National Stock Number 5330-01-591-1553, 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7 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Parameter | Value |
|---|---|
| NSN | 5330-01-591-1553 |
| Item Name | Gasket |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Status | ACTIVE |
| Style Designator | OVAL |
| Cut Type | RECTANGULAR OVERALL |
| Aperture Length | 1.130 INCHES NOMINAL IN |
| Bolt Hole Quantity | 21 |
| Material | RUBBER FLUOROSILICONE CLASS FQ OVERALL |
| Fabrication Method | SOLID |
| Hole Diameter | 0.260 INCHES MINIMUM AND 0.320 INCHES MAXIMUM LOCATION NOT OTHERWISE SPECIFIED IN |
| 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 |
|---|---|
| 65C33161-2 | 5/9 Secondary reference U.S. Government activity |
| 65C33161-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5330-01-591-1553 is a Gasket, classified under FSC 5330, Packing and Gasket Materials. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5330-01-669-4321. Verify interchangeability with system specifications before substitution.
Key specifications for 5330-01-591-1553: Style Designator: OVAL; Cut Type: RECTANGULAR OVERALL; Aperture Length: 1.130 INCHES NOMINAL IN; Bolt Hole Quantity: 21. 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.