The Gasket, cataloged under National Stock Number 5330-00-628-0555, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Caterpillar Inc Div Caterpillar Defense. Government technical data includes 8 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 | 5330-00-628-0555 |
| Primary Part Number | 4H8890 |
| Item Name | Gasket |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Caterpillar Inc Div Caterpillar Defense |
| Status | ACTIVE |
| Cross-Sectional Thickness | 0.031 INCHES NOMINAL IN |
| Material Document and Classification | MIL-G-12803,+1141-A MIL SPEC 1ST MATERIAL RESPONSE AND MIL-G-12803,+1141-A MIL SPEC 2ND MATERIAL RESPONSE OR MIL-G-12803,+1151-A MIL SPEC 3RD MATERIAL RESPONSE AND MIL-G-12803,+1151-A MIL SPEC 4TH MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | SOLID SINGLE OR COMPOSITION |
| Outside Diameter | 8.625 INCHES NOMINAL IN |
| Aperture Diameter | 6.688 INCHES NOMINAL IN |
| Bolt Circle Diameter | 7.750 INCHES NOMINAL IN |
| Material | ASBESTOS AND RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OR ASBESTOS AND RUBBER CHLOROPRENE CLASS CR OVERALL |
| Hole Diameter | 0.406 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 |
|---|---|
| 4H8890 PRIMARY | Caterpillar Inc Div Caterpillar Defense (USA) |
NSN 5330-00-628-0555 is a Gasket, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-00-628-0555 has 1 manufacturer part number on file: 4H8890 (Caterpillar Inc Div Caterpillar Defense).
Key specifications for 4H8890: Cross-Sectional Thickness: 0.031 INCHES NOMINAL IN; Material Document and Classification: MIL-G-12803,+1141-A MIL SPEC 1ST MATERIAL RESPONSE AND MIL-G-12803,+1141-A MIL SPEC 2ND MATERIAL RESPONSE OR MIL-G-12803,+1151-A MIL SPEC 3RD MATERIAL RESPONSE AND MIL-G-12803,+1151-A MIL SPEC 4TH MATERIAL RESPONSE OVERALL; Cross-Sectional Shape Style: SOLID SINGLE OR COMPOSITION; Outside Diameter: 8.625 INCHES NOMINAL IN. 8 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.