The Gasket, cataloged under National Stock Number 5330-00-478-9778, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. Government technical data includes 17 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government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 | 5330-00-478-9778 |
| Item Name | Gasket |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Status | ACTIVE |
| Temp Rating | -65.0 FAHRENHEIT AND 350.0 FAHRENHEIT DEGF |
| Surface Treatment Document and Classification | MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Cross-Sectional Thickness | 0.130 INCHES NOMINAL IN |
| Gage Ring Thickness | 0.090 INCHES NOMINAL IN |
| Side Radius From Gasket Center | 2.155 INCHES NOMINAL IN |
| Style Designator | NON-CIRCULAR |
| Material Document and Classification | QQ-A-250/11 T6 FED SPEC 1ST MATERIAL RESPONSE AND MIL-R-25988 MIL SPEC 2ND MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | METAL AND SYNTHETIC RUBBER |
| Outside Corner Inverted Radius | 0.280 INCHES NOMINAL IN |
| Aperture Diameter | 1.770 INCHES NOMINAL IN |
| Elongation Percentage | 125 MAXIMUM |
| Bolt Hole Quantity | 4 |
| Bolt Circle Diameter | 2.562 INCHES NOMINAL IN |
| Surface Treatment | ANODIZE OVERALL |
| Outside Corner Radius | 0.280 INCHES NOMINAL IN |
| Material | ALUMINUM ALLOY 6061 AND RUBBER FLUOROSILICONE CLASS FQ OVERALL |
| Hole Diameter | 0.281 INCHES MINIMUM AND 0.289 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 |
|---|---|
| BA3932 | 5/2 Secondary reference U.S. Government activity |
| C262-1 | 3/2 Design control — primary reference U.S. Government activity |
| 40157 | C/1 Advisory reference — outside the item-of-supply concept Rubbercraft Corporation of California, Ltd. Dba Rubbercraft Corp |
NSN 5330-00-478-9778 is a Gasket, classified under FSC 5330, Packing and Gasket Materials. Status: active.
5 possible matches (shared part number, not a government interchangeability claim): 3110-01-054-5244, 5930-01-303-7433, 6515-01-506-8801. Verify interchangeability with system specifications before substitution.
Key specifications for 5330-00-478-9778: Temp Rating: -65.0 FAHRENHEIT AND 350.0 FAHRENHEIT DEGF; Surface Treatment Document and Classification: MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Cross-Sectional Thickness: 0.130 INCHES NOMINAL IN; Gage Ring Thickness: 0.090 INCHES NOMINAL IN. 17 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.