The Valve,poppet,engine, cataloged under National Stock Number 2805-00-363-4396, 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 14 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2805-00-363-4396 |
| Item Name | Valve,poppet,engine |
| FSC / FSG | 2805 / 28 — Gasoline Reciprocating Engines, Except Aircraft; and Components |
| Status | ACTIVE |
| Stem Diameter | 0.3750 INCHES NOMINAL IN |
| Head Height | 0.2500 INCHES NOMINAL IN |
| Second Groove Width | 0.0469 INCHES NOMINAL IN |
| Stem Length | 4.7500 INCHES NOMINAL IN |
| Seat Angle in Deg | 45.0 |
| Neck Radius | 0.3750 INCHES NOMINAL IN |
| Outside Diameter | 1.6250 INCHES NOMINAL IN |
| Distance From First Groove to Stem End | 0.1562 INCHES NOMINAL IN |
| Head Style | FLAT |
| Distance From Second Groove to Stem End | 0.2500 INCHES NOMINAL IN |
| Carbon Relief Groove | NOT INCLUDED |
| Third Groove Width | 0.0469 INCHES NOMINAL IN |
| Distance From Third Groove to Stem End | 0.3750 INCHES NOMINAL IN |
| First Groove Width | 0.0469 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 |
|---|---|
| 3218731 | 5/9 Secondary reference U.S. Government activity |
| 2151 | 5/9 Secondary reference Echlin Inc |
| J3218731 | 3/2 Design control — primary reference U.S. Government activity |
NSN 2805-00-363-4396 is a Valve,poppet,engine, classified under FSC 2805, Gasoline Reciprocating Engines, Except Aircraft; and Components. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5841-01-097-7586. Verify interchangeability with system specifications before substitution.
Key specifications for 2805-00-363-4396: Stem Diameter: 0.3750 INCHES NOMINAL IN; Head Height: 0.2500 INCHES NOMINAL IN; Second Groove Width: 0.0469 INCHES NOMINAL IN; Stem Length: 4.7500 INCHES NOMINAL IN. 14 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.