The Valve,poppet,engine, cataloged under National Stock Number 2815-01-030-2705, 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 16 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2815-01-030-2705 |
| Primary Part Number | 687972C1 |
| Item Name | Valve,poppet,engine |
| FSC / FSG | 2815 / 28 — Diesel Engines and Components |
| Manufacturer | Komatsu America Corp. |
| Status | ACTIVE |
| Stem Diameter | 0.4330 INCHES NOMINAL IN |
| Head Height | 0.1750 INCHES NOMINAL IN |
| Stem Length | 7.1560 INCHES NOMINAL IN |
| Seat Angle in Deg | 45.0 |
| Chamfer Length | 0.0310 INCHES NOMINAL IN |
| Neck Radius | 1.0470 INCHES NOMINAL IN |
| Groove Diameter | 0.3600 INCHES NOMINAL IN |
| Distance From Groove to Stem End | 0.3120 INCHES NOMINAL IN |
| Outside Diameter | 1.7050 INCHES NOMINAL IN |
| Stem Style | GROOVED |
| Head Style | FLAT |
| Carbon Relief Groove | NOT INCLUDED |
| Chamfer Angle in Deg | 45.0 |
| Material | STEEL CORROSION RESISTING HEAD |
| Material | STEEL STEM |
| Groove Width | 0.1340 INCHES NOMINAL 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 |
|---|---|
| 687972C1 | Komatsu America Corp. (USA) |
| Reference | Meaning |
|---|---|
| 685278C1 | 5/9 Secondary reference U.S. Government activity |
| 687972C1 | 3/9 Design control — primary reference Komatsu American Intl Co |
NSN 2815-01-030-2705 is a Valve,poppet,engine, manufactured by Komatsu America Corp., classified under FSC 2815, Diesel Engines and Components. Status: active.
NSN 2815-01-030-2705 has 1 manufacturer part number on file: 687972C1 (Komatsu America Corp.).
Key specifications for 687972C1: Stem Diameter: 0.4330 INCHES NOMINAL IN; Head Height: 0.1750 INCHES NOMINAL IN; Stem Length: 7.1560 INCHES NOMINAL IN; Seat Angle in Deg: 45.0. 16 specifications are 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.