The Gasket, cataloged under National Stock Number 5330-00-171-9252, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Northrop Grumman Systems Corporation. Government technical data includes 15 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. 4 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 | 5330-00-171-9252 |
| Primary Part Number | S642 |
| Item Name | Gasket |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Cross-Sectional Thickness | 0.090 INCHES NOMINAL IN |
| Inside Corner Radius | 0.090 INCHES NOMINAL IN |
| Style Designator | NON-CIRCULAR |
| Material Document and Classification | MIL-C-6183,CL 1,GR FIRM MIL SPEC 2ND MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | SOLID SINGLE OR COMPOSITION |
| Aperture Width | 12.000 INCHES NOMINAL IN |
| Aperture Length | 18.000 INCHES NOMINAL IN |
| Bolt Hole Quantity | 48 |
| Center to Center Distance Between Bolt Holes Along Length | 1.375 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN |
| Center to Center Distance Between Bolt Holes Along Width | 1.312 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN |
| Outside Edge to Bolt Hole Center Distance Along Length | 0.438 INCHES NOMINAL IN |
| Outside Corner Radius | 0.438 INCHES NOMINAL IN |
| Material | CORK AND RUBBER SYNTHETIC OVERALL |
| Hole Diameter | 0.281 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN |
| Outside Edge to Bolt Hole Center Distance Along Width | 0.438 INCHES NOMINAL 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 |
|---|---|
| S642 PRIMARY | Northrop Grumman Systems Corporation (USA) |
NSN 5330-00-171-9252 is a Gasket, manufactured by Northrop Grumman Systems Corporation, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-00-171-9252 has 1 manufacturer part number on file: S642 (Northrop Grumman Systems Corporation).
4 possible matches (shared part number, not a government interchangeability claim): 3120-00-570-3203, 5305-00-616-2453, 4730-01-251-2218. Verify interchangeability with system specifications before substitution.
Key specifications for S642: Cross-Sectional Thickness: 0.090 INCHES NOMINAL IN; Inside Corner Radius: 0.090 INCHES NOMINAL IN; Style Designator: NON-CIRCULAR; Material Document and Classification: MIL-C-6183,CL 1,GR FIRM MIL SPEC 2ND MATERIAL RESPONSE OVERALL. 15 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.