The Gasket, cataloged under National Stock Number 5330-01-076-0368, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Knight Aerospace Products, Inc.. Government technical data includes 10 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-01-076-0368 |
| Primary Part Number | 20B453 |
| Item Name | Gasket |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Knight Aerospace Products, Inc. |
| Status | ACTIVE |
| Cross-Sectional Thickness | 0.125 INCHES NOMINAL IN |
| Hardness Rating | 40.0 SHORE DUROMETER A NOMINAL OVERALL |
| Style Designator | CIRCULAR |
| Cross-Sectional Shape Style | SOLID SINGLE OR COMPOSITION |
| Outside Diameter | 4.750 INCHES NOMINAL IN |
| Aperture Diameter | 3.500 INCHES NOMINAL IN |
| Bolt Hole Quantity | 6 |
| Bolt Circle Diameter | 4.124 INCHES NOMINAL IN |
| Material | RUBBER CHLOROPRENE CLASS CR OVERALL |
| Hole Diameter | 0.250 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 |
|---|---|
| 20B453 PRIMARY | Knight Aerospace Products, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 20B453 | 5/9 Secondary reference Page Avjet Support Equipment Corp |
NSN 5330-01-076-0368 is a Gasket, manufactured by Knight Aerospace Products, Inc., classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-076-0368 has 1 manufacturer part number on file: 20B453 (Knight Aerospace Products, Inc.).
Key specifications for 20B453: Cross-Sectional Thickness: 0.125 INCHES NOMINAL IN; Hardness Rating: 40.0 SHORE DUROMETER A NOMINAL OVERALL; Style Designator: CIRCULAR; Cross-Sectional Shape Style: SOLID SINGLE OR COMPOSITION. 10 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.