The Pin,piston, cataloged under National Stock Number 2815-00-856-0387, is classified within Federal Supply Class 2815 (Diesel Engines and Components) of the Engines, Turbines, and Components group. Government technical data includes 14 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2815-00-856-0387 |
| Item Name | Pin,piston |
| FSC / FSG | 2815 / 28 — Diesel Engines and Components |
| Status | ACTIVE |
| FSC Application Data | ENGINE,DIESEL |
| Body Style | PLAIN ENDS |
| Hole Arrangement Style | TWO HOLES IN SOLID PIN |
| Hole Depth | 0.0250 INCHES NOMINAL IN |
| First Hole Diameter | 0.937 INCHES NOMINAL IN |
| Material Document and Classification | FED STD 66 FED STD SINGLE MATERIAL RESPONSE OR AISI 4140 ASSN STD SINGLE MATERIAL RESPONSE OR SAE 4140 ASSN STD SINGLE MATERIAL RESPONSE |
| Outside Diameter | 3.68200 INCHES NOMINAL IN |
| Second Hole Diameter | 0.937 INCHES NOMINAL IN |
| Body Length | 6.5000 INCHES NOMINAL IN |
| Center to Center Distance Between Holes | 2.1600 INCHES NOMINAL IN |
| Casehardening Indicator | CASEHARDENED |
| Material | STEEL COMP 4140 |
| Metallic Hardness Rating | 34.0 MINIMUM ROCKWELL C AND 38.0 MAXIMUM ROCKWELL C |
| Distance From Centerline of Hole to End of Pin | 2.160 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 |
| Reference | Meaning |
|---|---|
| 8214930 | 3/9 Design control — primary reference General Motors Corp Electro-Motive Div |
| 8214930 | 5/9 Secondary reference General Motors Corp |
NSN 2815-00-856-0387 is a Pin,piston, classified under FSC 2815, Diesel Engines and Components. Status: active.
Key specifications for 2815-00-856-0387: FSC Application Data: ENGINE,DIESEL; Body Style: PLAIN ENDS; Hole Arrangement Style: TWO HOLES IN SOLID PIN; Hole Depth: 0.0250 INCHES NOMINAL IN. 14 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.