The Tappet,engine Poppet Valve, cataloged under National Stock Number 2805-00-561-6742, 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 12 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 2805-00-561-6742 |
| Primary Part Number | 5616742 |
| 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,EXCEPT STARTER ENGINES AND AIRCRAFT |
| Cam End Diameter | 0.989 INCHES MINIMUM AND 0.990 INCHES MAXIMUM IN |
| Concentric Hole Depth | 1.781 INCHES NOMINAL IN |
| Metallic Hardness Rating and Location | 41.0 ROCKWELL C MINIMUM CAM END |
| Adjustability | NONADJUSTABLE |
| Size Designation | STANDARD |
| Casehardening Indicator | NOT CASEHARDENED |
| Distance From Body Hole Center to Cam End | 0.422 INCHES MINIMUM AND 0.453 INCHES MAXIMUM IN |
| Concentric Hole Diameter | 0.854 INCHES MINIMUM AND 0.864 INCHES MAXIMUM IN |
| Body Hole Diameter | 0.188 INCHES NOMINAL IN |
| Material | IRON CAST OVERALL |
| Operation Method | MECHANICAL |
| 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 |
|---|---|
| 5616742 | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| 2071209 | 5/9 Secondary reference General Motors Corp |
| 2071209 | C/1 Advisory reference — outside the item-of-supply concept General Motors Llc Dba General Motors Llc |
| 2071209 | 3/9 Design control — primary reference Military Vehicles Opn General Motors Truck and Bus Group Ms 2603-02 |
NSN 2805-00-561-6742 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 2805-00-561-6742 has 1 manufacturer part number on file: 5616742 (U S Army Tank Automotive Command Amsta-Im-Mm).
1 possible match (shared part number, not a government interchangeability claim): 5961-01-016-7215. Verify interchangeability with system specifications before substitution.
Key specifications for 5616742: FSC Application Data: ENGINE,GASOLINE,EXCEPT STARTER ENGINES AND AIRCRAFT; Cam End Diameter: 0.989 INCHES MINIMUM AND 0.990 INCHES MAXIMUM IN; Concentric Hole Depth: 1.781 INCHES NOMINAL IN; Metallic Hardness Rating and Location: 41.0 ROCKWELL C MINIMUM CAM END. 12 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.