The Gasket, cataloged under National Stock Number 5330-00-174-8660, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is R. H. Sheppard Co., Inc. Dba Sheppard. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5330-00-174-8660 |
| Primary Part Number | 1711302 |
| Item Name | Gasket |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | R. H. Sheppard Co., Inc. Dba Sheppard |
| Status | ACTIVE |
| Gasket Center to Flat Distance | 2.750 INCHES NOMINAL IN |
| Outside Diameter | 5.687 INCHES NOMINAL IN |
| Aperture Diameter | 4.218 INCHES NOMINAL IN |
| Bolt Circle Diameter | 4.937 INCHES NOMINAL IN |
| Gasket Center to Second Flat Distance | 2.750 INCHES NOMINAL IN |
| Hole Diameter | 0.406 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 |
| Part Number | Manufacturer |
|---|---|
| 1711302 PRIMARY | R. H. Sheppard Co., Inc. Dba Sheppard (USA) |
| Reference | Meaning |
|---|---|
| 121SL58 | 5/2 Secondary reference U.S. Government activity |
| 121SL58 | 5/9 Secondary reference R. H. Sheppard Co., Inc. Dba Sheppard |
NSN 5330-00-174-8660 is a Gasket, manufactured by R. H. Sheppard Co., Inc. Dba Sheppard, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-00-174-8660 has 1 manufacturer part number on file: 1711302 (R. H. Sheppard Co., Inc. Dba Sheppard).
Key specifications for 1711302: Gasket Center to Flat Distance: 2.750 INCHES NOMINAL IN; Outside Diameter: 5.687 INCHES NOMINAL IN; Aperture Diameter: 4.218 INCHES NOMINAL IN; Bolt Circle Diameter: 4.937 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.