The Gasket, cataloged under National Stock Number 5330-01-320-8640, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. Government technical data includes 14 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-01-320-8640 |
| Item Name | Gasket |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Status | ACTIVE |
| Cross-Sectional Thickness | 0.125 INCHES NOMINAL IN |
| Maximum Pressure Rating | 150.0 POUNDS PER SQUARE INCH (PSI) LBS |
| Hardness Rating | 65.0 SHORE DUROMETER A MINIMUM AND 75.0 SHORE DUROMETER A MAXIMUM OVERALL |
| Style Designator | CIRCULAR |
| Material Document and Classification | MIL-R-6855,CL 1,GR 70 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | SOLID SINGLE OR COMPOSITION |
| Outside Diameter | 10.125 INCHES NOMINAL IN |
| Aperture Diameter | 6.360 INCHES NOMINAL IN |
| Specification/standard Data | 81349-MIL-F-20042 GOVERNMENT SPECIFICATION |
| Nondefinitive Spec/std Data | IPS6 SERIES AND PLAIN FLANGE STYLE |
| Bolt Hole Quantity | 12 |
| Bolt Circle Diameter | 8.875 INCHES NOMINAL IN |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL |
| Hole Diameter | 0.6875 INCHES NOMINAL 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 |
|---|---|
| MIL-F-20042 GASKET | 5/9 Secondary reference U.S. Government activity |
| GASKET 6 IPS 150 PSI 1/8 THK | 3/1 Design control — primary reference U.S. Government activity |
| MIL-PRF-20042 | 4/1 Identification reference U.S. Government activity |
NSN 5330-01-320-8640 is a Gasket, classified under FSC 5330, Packing and Gasket Materials. Status: active.
Key specifications for 5330-01-320-8640: Cross-Sectional Thickness: 0.125 INCHES NOMINAL IN; Maximum Pressure Rating: 150.0 POUNDS PER SQUARE INCH (PSI) LBS; Hardness Rating: 65.0 SHORE DUROMETER A MINIMUM AND 75.0 SHORE DUROMETER A MAXIMUM OVERALL; Style Designator: CIRCULAR. 14 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.