The Gasket, cataloged under National Stock Number 5330-00-700-0643, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Heil Environmental Industries. Government technical data includes 6 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5330-00-700-0643 |
| Primary Part Number | 22A1052 |
| Item Name | Gasket |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Heil Environmental Industries |
| Status | ACTIVE |
| Cross-Sectional Thickness | 0.062 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | SOLID SINGLE OR COMPOSITION |
| Bolt Circle Diameter | 4.000 INCHES NOMINAL IN |
| Outside Corner Radius | 0.500 INCHES NOMINAL IN |
| Material | ASBESTOS OVERALL |
| Hole Diameter | 0.500 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 |
|---|---|
| 22A1052 PRIMARY | Heil Environmental Industries (USA) |
| 7000643 | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| 2196062 | Military Vehicles Opn General Motors Truck and Bus Group Ms 2603-02 (USA) |
| Reference | Meaning |
|---|---|
| 2196062 | C/1 Advisory reference — outside the item-of-supply concept General Motors Llc Dba General Motors Llc |
| 2196062 | 5/9 Secondary reference General Motors Corp |
NSN 5330-00-700-0643 is a Gasket, manufactured by Heil Environmental Industries, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-00-700-0643 has 3 manufacturer part numbers on file: 22A1052 (Heil Environmental Industries), 7000643 (U S Army Tank Automotive Command Amsta-Im-Mm), 2196062 (Military Vehicles Opn General Motors Truck and Bus Group Ms 2603-02).
Key specifications for 22A1052: Cross-Sectional Thickness: 0.062 INCHES NOMINAL IN; Overall Length: 4.500 INCHES NOMINAL IN; Cross-Sectional Shape Style: SOLID SINGLE OR COMPOSITION; Overall Width: 3.828 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.