The Valve,poppet,engine, cataloged under National Stock Number 2805-00-757-4087, is classified within Federal Supply Class 2805 (Gasoline Reciprocating Engines, Except Aircraft; 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 3 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 2805-00-757-4087 |
| Primary Part Number | 14075641 |
| Item Name | Valve,poppet,engine |
| FSC / FSG | 2805 / 28 — Gasoline Reciprocating Engines, Except Aircraft; and Components |
| Manufacturer | General Motors Llc Dba General Motors Llc |
| Status | ACTIVE |
| Stem Diameter | 0.3400 INCHES NOMINAL IN |
| Head Height | 0.1350 INCHES NOMINAL IN |
| Second Groove Width | 0.1000 INCHES NOMINAL IN |
| Stem Length | 4.7360 INCHES NOMINAL IN |
| Seat Angle in Deg | 45.0 |
| Chamfer Length | 0.0325 INCHES NOMINAL IN |
| Neck Radius | 0.3750 INCHES NOMINAL IN |
| Outside Diameter | 1.9400 INCHES NOMINAL IN |
| Distance From First Groove to Stem End | 0.2620 INCHES NOMINAL IN |
| Stem Style | DOUBLE GROOVED |
| First Groove Diameter | 0.3020 INCHES NOMINAL IN |
| Head Style | CONCAVE |
| Distance From Second Groove to Stem End | 0.5220 INCHES NOMINAL IN |
| Carbon Relief Groove | NOT INCLUDED |
| Chamfer Angle in Deg | 45.0 |
| Second Groove Diameter | 0.3010 INCHES NOMINAL IN |
| Material | STEEL OVERALL |
| First Groove Width | 0.1960 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 |
|---|---|
| 14075641 PRIMARY | General Motors Llc Dba General Motors Llc (USA) |
| 3989085 | General Motors Llc Dba General Motors Llc (USA) |
| V-2552 PRIMARY | Trw Inc Trw Intl Trade Government Sales Dept (USA) |
| Reference | Meaning |
|---|---|
| V-2072 | 5/9 Secondary reference Spx Corp |
| V2552 | 3/2 Design control — primary reference U.S. Government activity |
| 3989085 | 5/9 Secondary reference General Motors Corp Chevrolet Motor Div Special Products Dept |
| V-2072 | 5/9 Secondary reference Bosch Automotive Service Solutions Inc. |
NSN 2805-00-757-4087 is a Valve,poppet,engine, manufactured by General Motors Llc Dba General Motors Llc, classified under FSC 2805, Gasoline Reciprocating Engines, Except Aircraft; and Components. Status: active.
NSN 2805-00-757-4087 has 3 manufacturer part numbers on file: 14075641 (General Motors Llc Dba General Motors Llc), 3989085 (General Motors Llc Dba General Motors Llc), V-2552 (Trw Inc Trw Intl Trade Government Sales Dept).
3 possible matches (shared part number, not a government interchangeability claim): 4320-01-262-7482, 2815-01-272-5338, 1680-01-652-4019. Verify interchangeability with system specifications before substitution.
Key specifications for 14075641: Stem Diameter: 0.3400 INCHES NOMINAL IN; Head Height: 0.1350 INCHES NOMINAL IN; Second Groove Width: 0.1000 INCHES NOMINAL IN; Stem Length: 4.7360 INCHES NOMINAL IN. 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.