The Connecting Rod,piston, cataloged under National Stock Number 2815-01-116-6401, is classified within Federal Supply Class 2815 (Diesel Engines and Components) of the Engines, Turbines, and Components group. The manufacturer of record is Kalmar AC Inc. Government technical data includes 24 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. 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 | 2815-01-116-6401 |
| Primary Part Number | 74914394-4 |
| Item Name | Connecting Rod,piston |
| FSC / FSG | 2815 / 28 — Diesel Engines and Components |
| Manufacturer | Kalmar AC Inc |
| Status | ACTIVE |
| Shaft Connecting End Hole Inside Diameter | 2.590 INCHES NOMINAL IN |
| End Thickness | 1.213 INCHES NOMINAL IN |
| Body Width at Piston Connecting End | 1.188 INCHES NOMINAL IN |
| Body Width at Shaft Connecting End | 1.250 INCHES NOMINAL IN |
| Shaft Connecting End Lubrication Drill Feature | NOT INCLUDED |
| Shaft Connecting End Bearing | NOT INCLUDED |
| Bearing Replaceability | REPLACEABLE |
| Shaft Connecting End Thickness | 1.368 INCHES NOMINAL IN |
| Center to Center Effective Length | 7.000 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | I-SECTION TYPE |
| Piston Connecting End Bearing | INCLUDED |
| Piston Connecting End Lubrication Method | FULL FORCED-FEED |
| Shaft Connecting End Width | 3.790 INCHES NOMINAL IN |
| Body Thickness at Piston Connecting End | 0.956 INCHES NOMINAL IN |
| End Hole Inside Diameter | 1.250 INCHES NOMINAL IN |
| Body Thickness at Shaft Connecting End | 0.956 INCHES NOMINAL IN |
| Shaft Connecting End Style | AUTOMOTIVE STANDARD SPLIT BEARING 2 BOLT |
| Material | STEEL |
| Fabrication Method | FORGED AND MACHINED |
| Piston End Connection Style | SMALL ENGINE AND AUTOMOTIVE STANDARD |
| Edge Radius | 1.031 INCHES NOMINAL IN |
| Piston Connecting End Lubrication Drill Feature | NOT INCLUDED |
| Shaft Connecting End Lubrication Method | FORCED-FEED |
| Shaft Connecting End Edge Radius | 2.212 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 |
| Part Number | Manufacturer |
|---|---|
| 74914394-4 PRIMARY | Kalmar AC Inc (USA) |
| A216007 PRIMARY | Dresser, Llc (USA) |
NSN 2815-01-116-6401 is a Connecting Rod,piston, manufactured by Kalmar AC Inc, classified under FSC 2815, Diesel Engines and Components. Status: active.
NSN 2815-01-116-6401 has 2 manufacturer part numbers on file: 74914394-4 (Kalmar AC Inc), A216007 (Dresser, Llc).
1 possible match (shared part number, not a government interchangeability claim): 3030-01-346-2778. Verify interchangeability with system specifications before substitution.
Key specifications for 74914394-4: Shaft Connecting End Hole Inside Diameter: 2.590 INCHES NOMINAL IN; End Thickness: 1.213 INCHES NOMINAL IN; Body Width at Piston Connecting End: 1.188 INCHES NOMINAL IN; Body Width at Shaft Connecting End: 1.250 INCHES NOMINAL IN. 24 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.