The Valve,poppet,engine, cataloged under National Stock Number 2805-00-444-2065, is classified within Federal Supply Class 2805 (Gasoline Reciprocating Engines, Except Aircraft; and Components) of the Engines, Turbines, and Components group. Government technical data includes 24 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 2805-00-444-2065 |
| Item Name | Valve,poppet,engine |
| FSC / FSG | 2805 / 28 — Gasoline Reciprocating Engines, Except Aircraft; and Components |
| Status | ACTIVE |
| Stem Diameter | 0.4030 INCHES NOMINAL IN |
| Head Height | 0.1360 INCHES NOMINAL IN |
| Second Groove Width | 0.0620 INCHES NOMINAL IN |
| Stem Length | 4.6660 INCHES NOMINAL IN |
| Seat Angle in Deg | 45.0 |
| Chamfer Length | 0.0312 INCHES NOMINAL IN |
| Neck Radius | 0.3593 INCHES NOMINAL IN |
| Third Groove Diameter | 0.3100 INCHES NOMINAL IN |
| Minor Outside Diameter | 0.3710 INCHES NOMINAL IN |
| Outside Diameter | 1.3620 INCHES NOMINAL IN |
| Distance From First Groove to Stem End | 0.1960 INCHES NOMINAL IN |
| Stem Style | TAPERED MULTI-GROOVED |
| First Groove Diameter | 0.3100 INCHES NOMINAL IN |
| Taper Angle in Deg | 45.0 |
| Head Style | CONCAVE |
| Distance From Second Groove to Stem End | 0.3060 INCHES NOMINAL IN |
| Carbon Relief Groove | NOT INCLUDED |
| Third Groove Width | 0.0620 INCHES NOMINAL IN |
| Minor Diameter Length | 0.6670 INCHES NOMINAL IN |
| Chamfer Angle in Deg | 45.0 |
| Second Groove Diameter | 0.3100 INCHES NOMINAL IN |
| Material | STEEL CORROSION RESISTING OVERALL |
| Distance From Third Groove to Stem End | 0.4090 INCHES NOMINAL IN |
| First Groove Width | 0.0620 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 |
|---|---|
| 3698593 | 3/2 Design control — primary reference U.S. Government activity |
| 2121583 | 5/9 Secondary reference U.S. Government activity |
NSN 2805-00-444-2065 is a Valve,poppet,engine, classified under FSC 2805, Gasoline Reciprocating Engines, Except Aircraft; and Components. Status: active.
Key specifications for 2805-00-444-2065: Stem Diameter: 0.4030 INCHES NOMINAL IN; Head Height: 0.1360 INCHES NOMINAL IN; Second Groove Width: 0.0620 INCHES NOMINAL IN; Stem Length: 4.6660 INCHES NOMINAL IN. 24 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.