The Gasket, cataloged under National Stock Number 5330-00-021-4790, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Grimes Aerospace Company. Government technical data includes 12 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 | 5330-00-021-4790 |
| Primary Part Number | A09D77 |
| Item Name | Gasket |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Grimes Aerospace Company |
| Status | ACTIVE |
| Cross-Sectional Thickness | 0.062 INCHES NOMINAL IN |
| Style Designator | NON-CIRCULAR |
| Material Document and Classification | 73 FSCM 81977 MFR REF 1ST MATERIAL RESPONSE AND A5000W FSCM 76500 MFR REF 2ND MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | SOLID SINGLE OR COMPOSITION |
| Aperture Diameter | 0.820 INCHES NOMINAL IN |
| Outside Corner Bevel Length Along Width | 0.470 INCHES NOMINAL IN |
| Outside Corner Bevel Length Along Length | 0.813 INCHES NOMINAL IN |
| Bolt Hole Quantity | 2 |
| Outside Edge to Bolt Hole Center Distance Along Length | 0.250 INCHES NOMINAL IN |
| Material | ASBESTOS OVERALL |
| Hole Diameter | 0.180 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN |
| Outside Edge to Bolt Hole Center Distance Along Width | 0.750 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 |
|---|---|
| A09D77 PRIMARY | Grimes Aerospace Company (USA) |
NSN 5330-00-021-4790 is a Gasket, manufactured by Grimes Aerospace Company, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-00-021-4790 has 1 manufacturer part number on file: A09D77 (Grimes Aerospace Company).
Key specifications for A09D77: Cross-Sectional Thickness: 0.062 INCHES NOMINAL IN; Style Designator: NON-CIRCULAR; Material Document and Classification: 73 FSCM 81977 MFR REF 1ST MATERIAL RESPONSE AND A5000W FSCM 76500 MFR REF 2ND MATERIAL RESPONSE OVERALL; Overall Length: 2.500 INCHES NOMINAL IN. 12 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.