The Valve,poppet,engine, cataloged under National Stock Number 2815-01-165-8002, 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 22 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 2815-01-165-8002 |
| Primary Part Number | 10137456 |
| Item Name | Valve,poppet,engine |
| FSC / FSG | 2815 / 28 — Diesel Engines and Components |
| Manufacturer | General Motors Llc Dba General Motors Llc |
| Status | ACTIVE |
| Head Height | 2.40 MILLIMETERS MINIMUM AND 2.55 MILLIMETERS MAXIMUM MM |
| Second Groove Width | 2.67 MILLIMETERS MINIMUM AND 2.92 MILLIMETERS MAXIMUM MM |
| Seat Angle in Deg | 45.0 |
| Chamfer Length | 0.38 MILLIMETERS MINIMUM AND 1.02 MILLIMETERS MAXIMUM MM |
| Neck Radius | 9.5 MILLIMETERS NOMINAL MM |
| Minor Outside Diameter | 9.830 MILLIMETERS MINIMUM AND 9.848 MILLIMETERS MAXIMUM MM |
| Metallic Hardness Rating and Location | 23.0 ROCKWELL C NOMINAL HEAD |
| Metallic Hardness Rating and Location | 23.0 ROCKWELL C NOMINAL SEAT FACE |
| Metallic Hardness Rating and Location | 49.0 ROCKWELL C NOMINAL TIP |
| Material Document and Classification | FED STD 66 FED STD SINGLE MATERIAL RESPONSE OR AISI 3140 ASSN STD SINGLE MATERIAL RESPONSE OR SAE 3140 ASSN STD SINGLE MATERIAL RESPONSE TIP |
| Outside Diameter | 37.87 MILLIMETERS MINIMUM AND 38.13 MILLIMETERS MAXIMUM MM |
| Distance From First Groove to Stem End | 9.8 MILLIMETERS NOMINAL MM |
| Stem Style | DOUBLE GROOVED |
| First Groove Diameter | 7.54 MILLIMETERS MINIMUM AND 7.70 MILLIMETERS MAXIMUM MM |
| Head Style | FLAT |
| Carbon Relief Groove | NOT INCLUDED |
| Chamfer Angle in Deg | 20.0 |
| Second Groove Diameter | 7.54 MILLIMETERS MINIMUM AND 7.70 MILLIMETERS MAXIMUM MM |
| Material | STEEL CORROSION RESISTING HEAD |
| Material | COBALT ALLOY SEAT FACE |
| Material | STEEL COMP 3140 TIP |
| First Groove Width | 2.41 MILLIMETERS MINIMUM AND 2.67 MILLIMETERS MAXIMUM 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 |
|---|---|
| 14050660 ITEM 3 | General Motors Llc Dba General Motors Llc (USA) |
| 10137456 PRIMARY | General Motors Llc Dba General Motors Llc (USA) |
| Reference | Meaning |
|---|---|
| 14050662 | 5/9 Secondary reference General Motors Corp Chevrolet Motor Div Special Products Dept |
| 14050660 ITEM 3 | 5/9 Secondary reference General Motors Corp Chevrolet Motor Div Special Products Dept |
| 14050660 | D/9 Drawing number reference only General Motors Corp Chevrolet Motor Div Special Products Dept |
| 10137456 | 5/9 Secondary reference General Motors Corp Chevrolet Motor Div Special Products Dept |
NSN 2815-01-165-8002 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 2815-01-165-8002 has 2 manufacturer part numbers on file: 14050660 ITEM 3 (General Motors Llc Dba General Motors Llc), 10137456 (General Motors Llc Dba General Motors Llc).
2 possible matches (shared part number, not a government interchangeability claim): 2815-01-314-4339, 2815-01-314-6887. Verify interchangeability with system specifications before substitution.
Key specifications for 10137456: Head Height: 2.40 MILLIMETERS MINIMUM AND 2.55 MILLIMETERS MAXIMUM MM; Second Groove Width: 2.67 MILLIMETERS MINIMUM AND 2.92 MILLIMETERS MAXIMUM MM; Seat Angle in Deg: 45.0; Chamfer Length: 0.38 MILLIMETERS MINIMUM AND 1.02 MILLIMETERS MAXIMUM MM. 22 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.