The Valve,poppet,engine, cataloged under National Stock Number 2815-00-424-4407, is classified within Federal Supply Class 2815 (Diesel Engines and Components) of the Engines, Turbines, and Components group. Government technical data includes 20 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2815-00-424-4407 |
| Item Name | Valve,poppet,engine |
| FSC / FSG | 2815 / 28 — Diesel Engines and Components |
| Status | ACTIVE |
| Stem Diameter | 0.4350 INCHES MINIMUM AND 0.4355 INCHES MAXIMUM IN |
| FSC Application Data | DIESEL ENGINE |
| Head Height | 0.1875 INCHES NOMINAL IN |
| Second Groove Width | 0.0625 INCHES NOMINAL IN |
| Stem Length | 6.9062 INCHES NOMINAL IN |
| Seat Angle in Deg | 45.0 |
| Chamfer Length | 0.0312 INCHES NOMINAL IN |
| Neck Radius | 0.5000 INCHES NOMINAL IN |
| Metallic Hardness Rating and Location | 28.0 ROCKWELL C MINIMUM OVERALL |
| Metallic Hardness Rating and Location | 37.0 ROCKWELL C MAXIMUM OVERALL |
| Outside Diameter | 1.8100 INCHES MINIMUM AND 1.8150 INCHES MAXIMUM IN |
| Distance From First Groove to Stem End | 0.2500 INCHES NOMINAL IN |
| Stem Style | DOUBLE GROOVED |
| First Groove Diameter | 0.3720 INCHES MINIMUM AND 0.3760 INCHES MAXIMUM IN |
| Head Style | FLAT |
| Distance From Second Groove to Stem End | 0.8750 INCHES NOMINAL IN |
| Carbon Relief Groove | NOT INCLUDED |
| Chamfer Angle in Deg | 45.0 |
| Second Groove Diameter | 0.4050 INCHES MINIMUM AND 0.4100 INCHES MAXIMUM IN |
| First Groove Width | 0.5625 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 |
| Reference | Meaning |
|---|---|
| MD3687A | 5/9 Secondary reference Mwm-Murphy Diesel Co |
| MD3687 | 3/9 Design control — primary reference Mwm-Murphy Diesel Co |
NSN 2815-00-424-4407 is a Valve,poppet,engine, classified under FSC 2815, Diesel Engines and Components. Status: active.
Key specifications for 2815-00-424-4407: Stem Diameter: 0.4350 INCHES MINIMUM AND 0.4355 INCHES MAXIMUM IN; FSC Application Data: DIESEL ENGINE; Head Height: 0.1875 INCHES NOMINAL IN; Second Groove Width: 0.0625 INCHES NOMINAL IN. 20 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.