The Pin,piston, cataloged under National Stock Number 2815-00-528-6327, is classified within Federal Supply Class 2815 (Diesel Engines and Components) of the Engines, Turbines, and Components group. The manufacturer of record is Hatch & Kirk, Inc.. Government technical data includes 11 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2815-00-528-6327 |
| Primary Part Number | 3256558 |
| Item Name | Pin,piston |
| FSC / FSG | 2815 / 28 — Diesel Engines and Components |
| Manufacturer | Hatch & Kirk, Inc. |
| Status | ACTIVE |
| Body Style | RADII ENDS |
| Radius | 0.031 INCHES NOMINAL IN |
| Bore Style | INSIDE RADII STRAIGHT-THRU BORE |
| Material Document and Classification | SAE 3310 ASSN STD SINGLE MATERIAL RESPONSE |
| Outside Diameter | 1.87390 INCHES MINIMUM AND 1.87410 INCHES MAXIMUM IN |
| Body Length | 3.8700 INCHES MINIMUM AND 3.8800 INCHES MAXIMUM IN |
| Casehardening Indicator | CASEHARDENED |
| Bore Diameter | 1.1875 INCHES NOMINAL IN |
| Material | STEEL COMP 3115 |
| Metallic Hardness Rating | 58.0 MINIMUM ROCKWELL C |
| Bore Radius | 0.031 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 |
|---|---|
| 3256558 PRIMARY | Hatch & Kirk, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 3256558 | 5/9 Secondary reference General Motors Corp Electro-Motive Div |
NSN 2815-00-528-6327 is a Pin,piston, manufactured by Hatch & Kirk, Inc., classified under FSC 2815, Diesel Engines and Components. Status: active.
NSN 2815-00-528-6327 has 1 manufacturer part number on file: 3256558 (Hatch & Kirk, Inc.).
Key specifications for 3256558: Body Style: RADII ENDS; Radius: 0.031 INCHES NOMINAL IN; Bore Style: INSIDE RADII STRAIGHT-THRU BORE; Material Document and Classification: SAE 3310 ASSN STD SINGLE MATERIAL RESPONSE. 11 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.