The Gasket, cataloged under National Stock Number 5330-00-803-0253, 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 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-00-803-0253 |
| Primary Part Number | 278280R1 |
| 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 | 1.530 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | SOLID SINGLE OR COMPOSITION |
| Aperture Diameter | 0.250 INCHES NOMINAL IN |
| Bolt Circle Diameter | 3.750 INCHES NOMINAL IN |
| Outside Corner Radius | 0.500 INCHES NOMINAL IN |
| Material | CELLULOSE OVERALL |
| Hole Diameter | 0.470 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 |
|---|---|
| 278280R1 | Komatsu America Corp. (USA) |
| D88502 | Komatsu America Corporation (USA) |
| Reference | Meaning |
|---|---|
| 278280R1 | 3/9 Design control — primary reference Komatsu American Intl Co |
| 278280R1 | 5/9 Secondary reference U.S. Government activity |
| 88502 | 5/9 Secondary reference Komatsu America Corporation |
| 278 280 R1 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| 278280R1 | 5/9 Secondary reference Navistar International Corporation Dba Navistar |
NSN 5330-00-803-0253 is a Gasket, manufactured by Komatsu America Corp., classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-00-803-0253 has 2 manufacturer part numbers on file: 278280R1 (Komatsu America Corp.), D88502 (Komatsu America Corporation).
3 possible matches (shared part number, not a government interchangeability claim): 5930-01-107-7657, 5998-01-342-3298, 9905-01-345-4521. Verify interchangeability with system specifications before substitution.
Key specifications for 278280R1: Cross-Sectional Thickness: 0.031 INCHES NOMINAL IN; Side Radius From Gasket Center: 1.530 INCHES NOMINAL IN; Cross-Sectional Shape Style: SOLID SINGLE OR COMPOSITION; Overall Width: 4.750 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.