The Connecting Rod,piston, cataloged under National Stock Number 2805-00-933-3551, 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 27 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2805-00-933-3551 |
| Primary Part Number | 11657124 |
| Item Name | Connecting Rod,piston |
| FSC / FSG | 2805 / 28 — Gasoline Reciprocating Engines, Except Aircraft; and Components |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Shaft Connecting End Hole Inside Diameter | 2.187 INCHES NOMINAL IN |
| FSC Application Data | ENGINE,GASOLINE,VEHICULAR |
| End Thickness | 1.060 INCHES MINIMUM AND 1.070 INCHES MAXIMUM IN |
| Body Width at Piston Connecting End | 0.780 INCHES NOMINAL IN |
| Body Width at Shaft Connecting End | 0.910 INCHES NOMINAL IN |
| Shaft Connecting End Lubrication Drill Feature | INCLUDED |
| Shaft Connecting End Bearing | NOT INCLUDED |
| Bearing Replaceability | REPLACEABLE |
| Material Document and Classification | FED STD 66, AISI 1141 FED STD SINGLE MATERIAL RESPONSE |
| Shaft Connecting End Thickness | 1.304 INCHES MINIMUM AND 1.306 INCHES MAXIMUM IN |
| Center to Center Effective Length | 6.998 INCHES MINIMUM AND 7.002 INCHES MAXIMUM IN |
| Cross-Sectional Shape Style | I-SECTION TYPE |
| Piston Connecting End Bearing | INCLUDED |
| Piston Connecting End Lubrication Method | SPLASH |
| Shaft Connecting End Width | 3.252 INCHES MINIMUM AND 3.255 INCHES MAXIMUM IN |
| Body Thickness at Piston Connecting End | 0.562 INCHES NOMINAL IN |
| End Hole Inside Diameter | 0.860 INCHES NOMINAL IN |
| Body Thickness at Shaft Connecting End | 0.780 INCHES NOMINAL IN |
| Shaft Connecting End Style | AUTOMOTIVE STANDARD SPLIT BEARING 2 BOLT |
| Material | STEEL COMP 1141 |
| Fabrication Method | FORGED AND MACHINED |
| Piston End Connection Style | SMALL ENGINE AND AUTOMOTIVE STANDARD |
| Edge Radius | 0.670 INCHES NOMINAL IN |
| Metallic Hardness Rating | 241.0 MINIMUM BRINELL TUNGSTEN CARBIDE AND 269.0 MAXIMUM BRINELL TUNGSTEN CARBIDE |
| Piston Connecting End Lubrication Drill Feature | INCLUDED |
| Shaft Connecting End Lubrication Method | SPLASH |
| Shaft Connecting End Edge Radius | 1.688 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 2805-00-933-3551 is a Connecting Rod,piston, 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 2805-00-933-3551 has 2 manufacturer part numbers on file: 928973 (Am General Llc), 11657124 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 11657124: Shaft Connecting End Hole Inside Diameter: 2.187 INCHES NOMINAL IN; FSC Application Data: ENGINE,GASOLINE,VEHICULAR; End Thickness: 1.060 INCHES MINIMUM AND 1.070 INCHES MAXIMUM IN; Body Width at Piston Connecting End: 0.780 INCHES NOMINAL IN. 27 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.