The Gasket, cataloged under National Stock Number 5330-00-159-1245, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems. Government technical data includes 9 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-00-159-1245 |
| Primary Part Number | 135B6911 |
| Item Name | Gasket |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems |
| Status | ACTIVE |
| Cross-Sectional Thickness | 0.063 INCHES NOMINAL IN |
| Hardness Rating | 35.0 SHORE DUROMETER A MINIMUM AND 45.0 SHORE DUROMETER A MAXIMUM OVERALL |
| Material Document and Classification | ASTM D2000 2BG415 ASSN STD ALL MATERIAL RESPONSES OVERALL |
| Cross-Sectional Shape Style | SOLID SINGLE OR COMPOSITION |
| Outside Diameter | 4.720 INCHES MINIMUM AND 4.780 INCHES MAXIMUM IN |
| Aperture Diameter | 2.670 INCHES MINIMUM AND 2.730 INCHES MAXIMUM IN |
| Bolt Circle Diameter | 4.250 INCHES NOMINAL IN |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OR RUBBER POLYESTER URETHANE CLASS AU OR RUBBER POLYETHER URETHANE CLASS EU OVERALL |
| Hole Diameter | 0.234 INCHES MINIMUM AND 0.247 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 |
NSN 5330-00-159-1245 is a Gasket, manufactured by General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-00-159-1245 has 2 manufacturer part numbers on file: 135B6911 (General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems), 135B6911 (Greene Rubber Company, Inc.).
Key specifications for 135B6911: Cross-Sectional Thickness: 0.063 INCHES NOMINAL IN; Hardness Rating: 35.0 SHORE DUROMETER A MINIMUM AND 45.0 SHORE DUROMETER A MAXIMUM OVERALL; Material Document and Classification: ASTM D2000 2BG415 ASSN STD ALL MATERIAL RESPONSES OVERALL; Cross-Sectional Shape Style: SOLID SINGLE OR COMPOSITION. 9 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.