The Cover,starting Valve, cataloged under National Stock Number 2815-00-431-0660, is classified within Federal Supply Class 2815 (Diesel Engines and Components) of the Engines, Turbines, and Components group. The manufacturer of record is Komatsu America Corp.. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 2815-00-431-0660 |
| Primary Part Number | 250535R1 |
| Item Name | Cover,starting Valve |
| FSC / FSG | 2815 / 28 — Diesel Engines and Components |
| Manufacturer | Komatsu America Corp. |
| Status | ACTIVE |
| General Characteristics Item Description | MATERIAL C-1117 C.D. S1-15-3D FINE GRAIN,CASE HARDEN PER IHC SPEC A-40,CLASS B,1.242 IN. OD,1.198 IN. LG,1.125 IN. ID,@ONE END CLOSED,0.110 IN. THK OF CLOSED END,0.047 IN. BY 45 DEG CHAMFER ON OD OF OPEN END,0.058 IN. BY 30 DEG CHAMFER ON OD OF CLOSED END,0.125 IN. DIA HOLE THRU CLOSED END,HOLE LOCATED 0.375 IN. FROM COVER CENTER TO HOLE CENTER IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 250535R1 | Komatsu America Corp. (USA) |
| Reference | Meaning |
|---|---|
| 250535R1 | 5/9 Secondary reference U.S. Government activity |
| 250535R1 | 5/9 Secondary reference Navistar International Corporation Dba Navistar |
| 250535R1 | 3/9 Design control — primary reference Komatsu American Intl Co |
NSN 2815-00-431-0660 is a Cover,starting Valve, manufactured by Komatsu America Corp., classified under FSC 2815, Diesel Engines and Components. Status: active.
NSN 2815-00-431-0660 has 1 manufacturer part number on file: 250535R1 (Komatsu America Corp.).
Key specifications for 250535R1: General Characteristics Item Description: MATERIAL C-1117 C.D. S1-15-3D FINE GRAIN,CASE HARDEN PER IHC SPEC A-40,CLASS B,1.242 IN. OD,1.198 IN. LG,1.125 IN. ID,@ONE END CLOSED,0.110 IN. THK OF CLOSED END,0.047 IN. BY 45 DEG CHAMFER ON OD OF OPEN END,0.058 IN. BY 30 DEG CHAMFER ON OD OF CLOSED END,0.125 IN. DIA HOLE THRU CLOSED END,HOLE LOCATED 0.375 IN. FROM COVER CENTER TO HOLE CENTER IN. 1 specification is documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). 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.