The Valve,poppet,engine, cataloged under National Stock Number 2805-00-354-3550, 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 21 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2805-00-354-3550 |
| Item Name | Valve,poppet,engine |
| FSC / FSG | 2805 / 28 — Gasoline Reciprocating Engines, Except Aircraft; and Components |
| Status | ACTIVE |
| Stem Diameter | 0.3730 INCHES MINIMUM AND 0.3735 INCHES MAXIMUM IN |
| FSC Application Data | GASOLINE ENGINE |
| Head Height | 0.1400 INCHES MINIMUM AND 0.1500 INCHES MAXIMUM IN |
| Second Groove Width | 0.0610 INCHES MINIMUM AND 0.0630 INCHES MAXIMUM IN |
| Stem Length | 5.7500 INCHES MINIMUM AND 5.7580 INCHES MAXIMUM IN |
| Seat Angle in Deg | 45.0 |
| Chamfer Length | 0.0156 INCHES NOMINAL IN |
| Neck Radius | 1.0000 INCHES NOMINAL IN |
| Metallic Hardness Rating and Location | 37.0 ROCKWELL C MINIMUM STEM |
| Metallic Hardness Rating and Location | 42.0 ROCKWELL C MAXIMUM STEM |
| Metallic Hardness Rating and Location | 42.0 ROCKWELL C NOMINAL TIP |
| Outside Diameter | 1.9710 INCHES MINIMUM AND 1.9810 INCHES MAXIMUM IN |
| Distance From First Groove to Stem End | 0.2360 INCHES MINIMUM AND 0.2440 INCHES MAXIMUM IN |
| Stem Style | DOUBLE GROOVED |
| First Groove Diameter | 0.3020 INCHES MINIMUM AND 0.3080 INCHES MAXIMUM IN |
| Head Style | INVERTED CONE |
| Distance From Second Groove to Stem End | 0.3890 INCHES MINIMUM AND 0.4020 INCHES MAXIMUM IN |
| Carbon Relief Groove | NOT INCLUDED |
| Chamfer Angle in Deg | 45.0 |
| Second Groove Diameter | 0.3020 INCHES MINIMUM AND 0.3080 INCHES MAXIMUM IN |
| First Groove Width | 0.0610 INCHES MINIMUM AND 0.0630 INCHES MAXIMUM 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 |
|---|---|
| 379069 | 3/9 Design control — primary reference White Motor Corp |
NSN 2805-00-354-3550 is a Valve,poppet,engine, classified under FSC 2805, Gasoline Reciprocating Engines, Except Aircraft; and Components. Status: active.
Key specifications for 2805-00-354-3550: Stem Diameter: 0.3730 INCHES MINIMUM AND 0.3735 INCHES MAXIMUM IN; FSC Application Data: GASOLINE ENGINE; Head Height: 0.1400 INCHES MINIMUM AND 0.1500 INCHES MAXIMUM IN; Second Groove Width: 0.0610 INCHES MINIMUM AND 0.0630 INCHES MAXIMUM IN. 21 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.