The Gasket, cataloged under National Stock Number 5330-01-069-8944, 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 Dba Electronic Systems. Government technical data includes 11 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-01-069-8944 |
| Primary Part Number | 977B640H02 |
| Item Name | Gasket |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Northrop Grumman Systems Corporation Dba Electronic Systems |
| Status | ACTIVE |
| Temp Rating | -65.0 FAHRENHEIT AND 300.0 FAHRENHEIT DEGF |
| Cross-Sectional Thickness | 0.063 INCHES NOMINAL IN |
| Style Designator | CIRCULAR |
| Material Document and Classification | DPS45151VA; FSCM 18323 MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | SOLID SINGLE OR COMPOSITION |
| Outside Diameter | 4.250 INCHES NOMINAL IN |
| Aperture Diameter | 1.050 INCHES NOMINAL IN |
| Bolt Hole Quantity | 4 |
| Bolt Circle Diameter | 3.120 INCHES NOMINAL IN |
| Material | RUBBER ETHYLENE-PROPYLENE CLASS EPM OVERALL |
| Hole Diameter | 0.623 INCHES MINIMUM AND 0.630 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 |
| Part Number | Manufacturer |
|---|---|
| 977B640H02 PRIMARY | Northrop Grumman Systems Corporation Dba Electronic Systems (USA) |
NSN 5330-01-069-8944 is a Gasket, manufactured by Northrop Grumman Systems Corporation Dba Electronic Systems, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-069-8944 has 1 manufacturer part number on file: 977B640H02 (Northrop Grumman Systems Corporation Dba Electronic Systems).
Key specifications for 977B640H02: Temp Rating: -65.0 FAHRENHEIT AND 300.0 FAHRENHEIT DEGF; Cross-Sectional Thickness: 0.063 INCHES NOMINAL IN; Style Designator: CIRCULAR; Material Document and Classification: DPS45151VA; FSCM 18323 MFR REF SINGLE MATERIAL RESPONSE OVERALL. 11 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.