The Valve,poppet,engine, cataloged under National Stock Number 2805-00-429-4198, 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 Dresser, Llc. Government technical data includes 18 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2805-00-429-4198 |
| Primary Part Number | 145436C |
| Item Name | Valve,poppet,engine |
| FSC / FSG | 2805 / 28 — Gasoline Reciprocating Engines, Except Aircraft; and Components |
| Manufacturer | Dresser, Llc |
| Status | ACTIVE |
| Stem Diameter | 0.5000 INCHES NOMINAL IN |
| Head Height | 0.1249 INCHES NOMINAL IN |
| Second Groove Width | 0.1250 INCHES NOMINAL IN |
| Stem Length | 7.9688 INCHES NOMINAL IN |
| Seat Angle in Deg | 30.0 |
| Chamfer Length | 0.0310 INCHES NOMINAL IN |
| Neck Radius | 0.4375 INCHES NOMINAL IN |
| Metallic Hardness Rating and Location | 48.0 ROCKWELL C NOMINAL TIP |
| Outside Diameter | 2.5525 INCHES MINIMUM AND 2.5625 INCHES MAXIMUM IN |
| Distance From First Groove to Stem End | 0.2190 INCHES NOMINAL IN |
| Stem Style | DOUBLE GROOVED |
| First Groove Diameter | 0.4280 INCHES MINIMUM AND 0.4380 INCHES MAXIMUM IN |
| Head Style | MUSHROOM |
| Distance From Second Groove to Stem End | 0.5310 INCHES NOMINAL IN |
| Carbon Relief Groove | NOT INCLUDED |
| Chamfer Angle in Deg | 60.0 |
| Second Groove Diameter | 0.4280 INCHES MINIMUM AND 0.4380 INCHES MAXIMUM IN |
| First Groove Width | 0.1250 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 |
NSN 2805-00-429-4198 is a Valve,poppet,engine, manufactured by Dresser, Llc, classified under FSC 2805, Gasoline Reciprocating Engines, Except Aircraft; and Components. Status: active.
NSN 2805-00-429-4198 has 2 manufacturer part numbers on file: 145436C (Dresser, Llc), 1A145436A (Fwd Seagrave Holdings Lp).
Key specifications for 145436C: Stem Diameter: 0.5000 INCHES NOMINAL IN; Head Height: 0.1249 INCHES NOMINAL IN; Second Groove Width: 0.1250 INCHES NOMINAL IN; Stem Length: 7.9688 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.