The Valve,poppet,engine, cataloged under National Stock Number 2815-01-153-1426, is classified within Federal Supply Class 2815 (Diesel Engines and Components) of the Engines, Turbines, and Components group. The manufacturer of record is General Motors Llc Dba General Motors Llc. Government technical data includes 18 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 2815-01-153-1426 |
| Primary Part Number | 14025510 |
| Item Name | Valve,poppet,engine |
| FSC / FSG | 2815 / 28 — Diesel Engines and Components |
| Manufacturer | General Motors Llc Dba General Motors Llc |
| Status | ACTIVE |
| Stem Diameter | 8.6610 MILLIMETERS MINIMUM AND 8.6790 MILLIMETERS MAXIMUM MM |
| Head Height | 2.7350 MILLIMETERS MINIMUM AND 2.8850 MILLIMETERS MAXIMUM MM |
| Second Groove Width | 2.6700 MILLIMETERS MINIMUM AND 2.9200 MILLIMETERS MAXIMUM MM |
| Stem Length | 126.8600 MILLIMETERS MINIMUM AND 127.1200 MILLIMETERS MAXIMUM MM |
| Seat Angle in Deg | 45.0 |
| Chamfer Length | 0.5000 MILLIMETERS NOMINAL MM |
| Neck Radius | 17.0000 MILLIMETERS NOMINAL MM |
| Metallic Hardness Rating and Location | 37.0 ROCKWELL C MINIMUM OVERALL AND 42.0 ROCKWELL C MAXIMUM OVERALL |
| Outside Diameter | 51.5700 MILLIMETERS NOMINAL MM |
| Distance From First Groove to Stem End | 2.6800 MILLIMETERS NOMINAL MM |
| Stem Style | DOUBLE GROOVED |
| First Groove Diameter | 7.4400 MILLIMETERS MINIMUM AND 7.7000 MILLIMETERS MAXIMUM MM |
| Head Style | FLAT |
| Distance From Second Groove to Stem End | 9.0200 MILLIMETERS NOMINAL MM |
| Carbon Relief Groove | NOT INCLUDED |
| Chamfer Angle in Deg | 15.0 |
| Second Groove Diameter | 8.6990 MILLIMETERS NOMINAL MM |
| First Groove Width | 2.1800 MILLIMETERS NOMINAL MM |
| 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 |
|---|---|
| 14025510 PRIMARY | General Motors Llc Dba General Motors Llc (USA) |
| Reference | Meaning |
|---|---|
| 14025510 | 5/9 Secondary reference General Motors Corp Chevrolet Motor Div Special Products Dept |
| 14050651 | D/9 Drawing number reference only General Motors Corp Chevrolet Motor Div Special Products Dept |
NSN 2815-01-153-1426 is a Valve,poppet,engine, manufactured by General Motors Llc Dba General Motors Llc, classified under FSC 2815, Diesel Engines and Components. Status: active.
NSN 2815-01-153-1426 has 1 manufacturer part number on file: 14025510 (General Motors Llc Dba General Motors Llc).
Key specifications for 14025510: Stem Diameter: 8.6610 MILLIMETERS MINIMUM AND 8.6790 MILLIMETERS MAXIMUM MM; Head Height: 2.7350 MILLIMETERS MINIMUM AND 2.8850 MILLIMETERS MAXIMUM MM; Second Groove Width: 2.6700 MILLIMETERS MINIMUM AND 2.9200 MILLIMETERS MAXIMUM MM; Stem Length: 126.8600 MILLIMETERS MINIMUM AND 127.1200 MILLIMETERS MAXIMUM MM. 18 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.