The Valve,poppet,engine, cataloged under National Stock Number 2805-00-847-7331, 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 16 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 2805-00-847-7331 |
| Item Name | Valve,poppet,engine |
| FSC / FSG | 2805 / 28 — Gasoline Reciprocating Engines, Except Aircraft; and Components |
| Status | ACTIVE |
| Stem Diameter | 0.3080 INCHES NOMINAL IN |
| Head Height | 0.8000 INCHES NOMINAL IN |
| Stem Length | 5.9780 INCHES NOMINAL IN |
| Seat Angle in Deg | 45.0 |
| Chamfer Length | 0.0300 INCHES NOMINAL IN |
| Neck Radius | 0.2968 INCHES NOMINAL IN |
| Groove Diameter | 0.2700 INCHES NOMINAL IN |
| Distance From Groove to Stem End | 0.1500 INCHES NOMINAL IN |
| Outside Diameter | 1.5550 INCHES NOMINAL IN |
| Stem Style | GROOVED |
| Head Style | FLAT |
| Carbon Relief Groove | NOT INCLUDED |
| Chamfer Angle in Deg | 45.0 |
| Material | STEEL HEAD |
| Material | STEEL CORROSION RESISTING STEM |
| Groove Width | 0.1000 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 |
|---|---|
| AE87D | 3/9 Design control — primary reference Arrow-Master, Incorporated |
NSN 2805-00-847-7331 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): 2805-00-997-9874. Verify interchangeability with system specifications before substitution.
Key specifications for 2805-00-847-7331: Stem Diameter: 0.3080 INCHES NOMINAL IN; Head Height: 0.8000 INCHES NOMINAL IN; Stem Length: 5.9780 INCHES NOMINAL IN; Seat Angle in Deg: 45.0. 16 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.