The Valve,poppet,engine, cataloged under National Stock Number 2805-00-391-4396, 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 16 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2805-00-391-4396 |
| Item Name | Valve,poppet,engine |
| FSC / FSG | 2805 / 28 — Gasoline Reciprocating Engines, Except Aircraft; and Components |
| Status | ACTIVE |
| Stem Diameter | 0.5575 INCHES MINIMUM AND 0.5585 INCHES MAXIMUM IN |
| FSC Application Data | GASOLINE ENGINE |
| Head Height | 0.2350 INCHES MINIMUM AND 0.2450 INCHES MAXIMUM IN |
| Stem Length | 7.0520 INCHES MINIMUM AND 7.0620 INCHES MAXIMUM IN |
| Seat Angle in Deg | 45.0 |
| Neck Radius | 1.2500 INCHES NOMINAL IN |
| Groove Diameter | 0.5060 INCHES MINIMUM AND 0.5110 INCHES MAXIMUM IN |
| Distance From Groove to Stem End | 0.1875 INCHES NOMINAL IN |
| Outside Diameter | 2.5610 INCHES MINIMUM AND 2.5710 INCHES MAXIMUM IN |
| Stem Style | GROOVED |
| Head Style | INVERTED CONE |
| Carbon Relief Groove | NOT INCLUDED |
| Unable to Decode | UNABLE TO DECODE |
| Material | STEEL HEAD |
| Material | STEEL STEM |
| Groove Width | 0.3120 INCHES MINIMUM AND 0.3320 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 |
|---|---|
| A63490 | 3/9 Design control — primary reference Sasco Inc Canadian Div |
| 7-258PCA63490 | 5/9 Secondary reference Sasco Inc Canadian Div |
| 7-326PCA63490 | 5/9 Secondary reference Sasco Inc Canadian Div |
| 7-353PCA63490 | 5/9 Secondary reference Sasco Inc Canadian Div |
NSN 2805-00-391-4396 is a Valve,poppet,engine, classified under FSC 2805, Gasoline Reciprocating Engines, Except Aircraft; and Components. Status: active.
Key specifications for 2805-00-391-4396: Stem Diameter: 0.5575 INCHES MINIMUM AND 0.5585 INCHES MAXIMUM IN; FSC Application Data: GASOLINE ENGINE; Head Height: 0.2350 INCHES MINIMUM AND 0.2450 INCHES MAXIMUM IN; Stem Length: 7.0520 INCHES MINIMUM AND 7.0620 INCHES MAXIMUM IN. 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.