The Valve,poppet,engine, cataloged under National Stock Number 2805-00-423-7631, 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 Agco Corp Parts Opn. Government technical data includes 16 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 7 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2805-00-423-7631 |
| Primary Part Number | 4004310 |
| Item Name | Valve,poppet,engine |
| FSC / FSG | 2805 / 28 — Gasoline Reciprocating Engines, Except Aircraft; and Components |
| Manufacturer | Agco Corp Parts Opn |
| Status | ACTIVE |
| Stem Diameter | 0.3720 INCHES NOMINAL IN |
| Head Height | 0.1420 INCHES NOMINAL IN |
| Stem Length | 5.5850 INCHES NOMINAL IN |
| Seat Angle in Deg | 45.0 |
| Chamfer Length | 0.0050 INCHES NOMINAL IN |
| Neck Radius | 0.6562 INCHES NOMINAL IN |
| Minor Outside Diameter | 0.03020 INCHES NOMINAL IN |
| Outside Diameter | 1.9045 INCHES NOMINAL IN |
| Stem Style | TAPERED |
| Taper Angle in Deg | 15.0 |
| Head Style | FLAT |
| Distance From Minor Diameter to Stem End | 0.2210 INCHES NOMINAL IN |
| Carbon Relief Groove | NOT INCLUDED |
| Minor Diameter Length | 0.3050 INCHES NOMINAL IN |
| Chamfer Angle in Deg | 45.0 |
| Material | STEEL OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 4004310 PRIMARY | Agco Corp Parts Opn (USA) |
| V707 | Eaton Corp Dba Eaton Aerospace Jackson (USA) |
| Reference | Meaning |
|---|---|
| VI451 | 5/9 Secondary reference Spx Corp |
| T90 | 5/9 Secondary reference Toledo Pickling & Steel Sales |
| VI451 | 5/9 Secondary reference Bosch Automotive Service Solutions Inc. |
NSN 2805-00-423-7631 is a Valve,poppet,engine, manufactured by Agco Corp Parts Opn, classified under FSC 2805, Gasoline Reciprocating Engines, Except Aircraft; and Components. Status: active.
NSN 2805-00-423-7631 has 2 manufacturer part numbers on file: 4004310 (Agco Corp Parts Opn), V707 (Eaton Corp Dba Eaton Aerospace Jackson).
7 possible matches (shared part number, not a government interchangeability claim): 6650-00-565-1654, 5330-01-014-6017, 6140-01-044-2605. Verify interchangeability with system specifications before substitution.
Key specifications for 4004310: Stem Diameter: 0.3720 INCHES NOMINAL IN; Head Height: 0.1420 INCHES NOMINAL IN; Stem Length: 5.5850 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.