The Connecting Rod,piston, cataloged under National Stock Number 2815-00-424-9992, is classified within Federal Supply Class 2815 (Diesel Engines and Components) of the Engines, Turbines, and Components group. The manufacturer of record is Komatsu America Corp.. Government technical data includes 23 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2815-00-424-9992 |
| Primary Part Number | 670678C91 |
| Item Name | Connecting Rod,piston |
| FSC / FSG | 2815 / 28 — Diesel Engines and Components |
| Manufacturer | Komatsu America Corp. |
| Status | ACTIVE |
| Shaft Connecting End Hole Inside Diameter | 3.188 INCHES NOMINAL IN |
| End Thickness | 1.375 INCHES NOMINAL IN |
| Body Width at Piston Connecting End | 1.438 INCHES NOMINAL IN |
| Body Width at Shaft Connecting End | 1.531 INCHES NOMINAL IN |
| Shaft Connecting End Lubrication Drill Feature | NOT INCLUDED |
| Shaft Connecting End Bearing | NOT INCLUDED |
| Bearing Replaceability | REPLACEABLE |
| Shaft Connecting End Thickness | 1.688 INCHES NOMINAL IN |
| Center to Center Effective Length | 8.109 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | I-SECTION TYPE |
| Piston Connecting End Bearing | INCLUDED |
| Piston Connecting End Lubrication Method | SPLASH |
| Shaft Connecting End Width | 4.938 INCHES NOMINAL IN |
| Body Thickness at Piston Connecting End | 1.125 INCHES NOMINAL IN |
| End Hole Inside Diameter | 1.625 INCHES NOMINAL IN |
| Shaft Connecting End Style | 2 BOLT 45 DEGREES |
| Material | STEEL |
| Fabrication Method | CAST |
| Piston End Connection Style | SMALL ENGINE AND AUTOMOTIVE STANDARD |
| Edge Radius | 1.423 INCHES NOMINAL IN |
| Piston Connecting End Lubrication Drill Feature | INCLUDED |
| Shaft Connecting End Lubrication Method | FORCED-FEED |
| Shaft Connecting End Edge Radius | 2.219 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 |
|---|---|
| 670678C91 | Komatsu America Corp. (USA) |
| Reference | Meaning |
|---|---|
| 670678C91 | 5/9 Secondary reference U.S. Government activity |
| 670678C91 | 5/9 Secondary reference Navistar International Corporation Dba Navistar |
| 670678C91 | 3/9 Design control — primary reference Komatsu American Intl Co |
NSN 2815-00-424-9992 is a Connecting Rod,piston, manufactured by Komatsu America Corp., classified under FSC 2815, Diesel Engines and Components. Status: active.
NSN 2815-00-424-9992 has 1 manufacturer part number on file: 670678C91 (Komatsu America Corp.).
Key specifications for 670678C91: Shaft Connecting End Hole Inside Diameter: 3.188 INCHES NOMINAL IN; End Thickness: 1.375 INCHES NOMINAL IN; Body Width at Piston Connecting End: 1.438 INCHES NOMINAL IN; Body Width at Shaft Connecting End: 1.531 INCHES NOMINAL IN. 23 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.