The Tappet,engine Poppet Valve, cataloged under National Stock Number 2805-00-039-6433, 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 U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 20 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2805-00-039-6433 |
| Primary Part Number | 7034739 |
| Item Name | Tappet,engine Poppet Valve |
| FSC / FSG | 2805 / 28 — Gasoline Reciprocating Engines, Except Aircraft; and Components |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| FSC Application Data | ENGINE,GASOLINE,NONAIRCRAFT |
| Cam End Diameter | 1.9170 INCHES MINIMUM AND 1.9172 INCHES MAXIMUM IN |
| Spherical Radius | 30.000 INCHES NOMINAL IN |
| Distance From Boss Face to Cam End | 0.212 INCHES MINIMUM AND 0.214 INCHES MAXIMUM IN |
| Concentric Hole Depth | 1.705 INCHES MINIMUM AND 1.725 INCHES MAXIMUM IN |
| Body Groove Width | 0.590 INCHES MINIMUM AND 0.610 INCHES MAXIMUM IN |
| Style Designator | CHAMFERED, CONCENTRIC HOLE PUSH ROD END |
| Metallic Hardness Rating and Location | 55.0 ROCKWELL C MINIMUM OVERALL AND 60.0 ROCKWELL C MAXIMUM OVERALL |
| Distance From Body Groove Center to Cam End | 0.890 INCHES MINIMUM AND 0.910 INCHES MAXIMUM IN |
| Adjustability | NONADJUSTABLE |
| Body Groove Diameter | 1.895 INCHES MINIMUM AND 1.905 INCHES MAXIMUM IN |
| Size Designation | STANDARD |
| Boss Diameter | 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN |
| Casehardening Indicator | CASEHARDENED |
| Distance From Body Hole Center to Cam End | 1.250 INCHES MINIMUM AND 1.270 INCHES MAXIMUM IN |
| Concentric Hole Diameter | 1.690 INCHES MINIMUM AND 1.710 INCHES MAXIMUM IN |
| Body Hole Diameter | 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN |
| Material | STEEL OVERALL |
| Casehardened Location | OVERALL |
| Reference Number Differentiating Characteristics | AS DIFFERENTIATED BY DISTANCE FROM BOSS FACE TO CAM END |
| 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 |
|---|---|
| 7034739 | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| GG6500A2C | 3/9 Design control — primary reference Ford Motor Co Ford Parts and Service Div Government Part Sales |
| GG6500A2C | C/1 Advisory reference — outside the item-of-supply concept Ford Motor Company |
NSN 2805-00-039-6433 is a Tappet,engine Poppet Valve, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 2805, Gasoline Reciprocating Engines, Except Aircraft; and Components. Status: active.
NSN 2805-00-039-6433 has 1 manufacturer part number on file: 7034739 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 7034739: FSC Application Data: ENGINE,GASOLINE,NONAIRCRAFT; Cam End Diameter: 1.9170 INCHES MINIMUM AND 1.9172 INCHES MAXIMUM IN; Spherical Radius: 30.000 INCHES NOMINAL IN; Distance From Boss Face to Cam End: 0.212 INCHES MINIMUM AND 0.214 INCHES MAXIMUM IN. 20 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.