The Gasket, cataloged under National Stock Number 5330-00-139-0263, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Komatsu America Corp.. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-00-139-0263 |
| Primary Part Number | 45439D |
| Item Name | Gasket |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Komatsu America Corp. |
| Status | ACTIVE |
| Cross-Sectional Thickness | 0.031 INCHES NOMINAL IN |
| Side Radius From Gasket Center | 1.750 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | SOLID SINGLE OR COMPOSITION |
| Aperture Diameter | 2.876 INCHES NOMINAL IN |
| Bolt Circle Diameter | 3.876 INCHES NOMINAL IN |
| Outside Corner Radius | 0.375 INCHES NOMINAL IN |
| Material | PAPER AND GLUE OVERALL |
| Hole Diameter | 0.094 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 |
|---|---|
| 45439D | Komatsu America Corp. (USA) |
| Reference | Meaning |
|---|---|
| 45439D | 5/9 Secondary reference U.S. Government activity |
| 45439D | 5/9 Secondary reference Navistar International Corporation Dba Navistar |
| 45439D | 3/9 Design control — primary reference Komatsu American Intl Co |
NSN 5330-00-139-0263 is a Gasket, manufactured by Komatsu America Corp., classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-00-139-0263 has 1 manufacturer part number on file: 45439D (Komatsu America Corp.).
Key specifications for 45439D: Cross-Sectional Thickness: 0.031 INCHES NOMINAL IN; Side Radius From Gasket Center: 1.750 INCHES NOMINAL IN; Cross-Sectional Shape Style: SOLID SINGLE OR COMPOSITION; Overall Width: 4.626 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.