The Insert,engine Valve Seat, cataloged under National Stock Number 2805-00-057-2383, 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 8 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 2805-00-057-2383 |
| Item Name | Insert,engine Valve Seat |
| FSC / FSG | 2805 / 28 — Gasoline Reciprocating Engines, Except Aircraft; and Components |
| Status | ACTIVE |
| Flange Seat to Disk End Height | 0.187 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN |
| Flange Diameter | 0.672 INCHES NOMINAL IN |
| Body Outside Diameter | 0.628 INCHES MINIMUM AND 0.631 INCHES MAXIMUM IN |
| Style Designator | PLAIN FLANGED |
| Body Inside Diameter | 0.484 INCHES NOMINAL IN |
| Under Flange Height | 0.310 INCHES MINIMUM AND 0.313 INCHES MAXIMUM IN |
| Material | NICKEL OR COPPER ALLOY OVERALL |
| Seating Surface Shape | FLAT |
| 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 |
|---|---|
| 303058 | 3/9 Design control — primary reference Mintex International Corp |
NSN 2805-00-057-2383 is a Insert,engine Valve Seat, classified under FSC 2805, Gasoline Reciprocating Engines, Except Aircraft; and Components. Status: active.
Key specifications for 2805-00-057-2383: Flange Seat to Disk End Height: 0.187 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN; Flange Diameter: 0.672 INCHES NOMINAL IN; Body Outside Diameter: 0.628 INCHES MINIMUM AND 0.631 INCHES MAXIMUM IN; Style Designator: PLAIN FLANGED. 8 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.