The Gasket, cataloged under National Stock Number 5330-00-964-9988, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Lockheed Martin Corporation Div Rms. Government technical data includes 6 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-00-964-9988 |
| Primary Part Number | 8991176-2 |
| Item Name | Gasket |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Lockheed Martin Corporation Div Rms |
| Status | ACTIVE |
| Gage Ring Thickness | 0.122 INCHES NOMINAL IN |
| Hardness Rating | 55.0 SHORE DUROMETER A MINIMUM AND 65.0 SHORE DUROMETER A MAXIMUM OVERALL |
| Material Document and Classification | MIL-R-6855 CL 2 GR 60 MIL SPEC 2ND MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | METAL AND SYNTHETIC RUBBER |
| Bolt Hole Quantity | 2 |
| Material | ALUMINUM ALLOY 6061 AND RUBBER CHLOROPRENE CLASS CR OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 8991176-2 PRIMARY | Lockheed Martin Corporation Div Rms (USA) |
| Reference | Meaning |
|---|---|
| 8991176-2 | 5/2 Secondary reference U.S. Government activity |
| 8991176-2 | 5/9 Secondary reference Lockheed Martin Corporation Dba Lockheed Martin Div Lockheed Martin |
NSN 5330-00-964-9988 is a Gasket, manufactured by Lockheed Martin Corporation Div Rms, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-00-964-9988 has 1 manufacturer part number on file: 8991176-2 (Lockheed Martin Corporation Div Rms).
Key specifications for 8991176-2: Gage Ring Thickness: 0.122 INCHES NOMINAL IN; Hardness Rating: 55.0 SHORE DUROMETER A MINIMUM AND 65.0 SHORE DUROMETER A MAXIMUM OVERALL; Material Document and Classification: MIL-R-6855 CL 2 GR 60 MIL SPEC 2ND MATERIAL RESPONSE OVERALL; Overall Length: 8.688 INCHES NOMINAL IN. 6 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.