| Item Name | Pin Piston |
| Federal Supply Group (FSG) | Engines Turbines and Components |
| Federal Supply Class (FSC) | 2815 Diesel Engines and Components |
| National Item Identification Number (NIIN) | 00-856-0387 (008560387) |
| NCB Code | USA (00) |
| Manufacturer | General Motors Corp |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAQL | BODY STYLE | PLAIN ENDS |
| AAZQ | HOLE DEPTH | 0.0250 INCHES NOMINAL |
| ABKV | OUTSIDE DIAMETER | 3.68200 INCHES NOMINAL |
| ABRB | HOLE ARRANGEMENT STYLE | TWO HOLES IN SOLID PIN |
| ABRC | FIRST HOLE DIAMETER | 0.937 INCHES NOMINAL |
| ABRD | SECOND HOLE DIAMETER | 0.937 INCHES NOMINAL |
| ABRE | DISTANCE FROM CENTERLINE OF HOLE TO END OF PIN | 2.160 INCHES NOMINAL |
| ABRF | CENTER TO CENTER DISTANCE BETWEEN HOLES | 2.1600 INCHES NOMINAL |
| ADAQ | BODY LENGTH | 6.5000 INCHES NOMINAL |
| AETC | METALLIC HARDNESS RATING | 34.0 MINIMUM ROCKWELL C AND 38.0 MAXIMUM ROCKWELL C |
| MATT | MATERIAL | STEEL COMP 4140 |
| MDCL | 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 |
| ZZZV | FSC APPLICATION DATA | ENGINE,DIESEL |
| AASG | CASEHARDENING INDICATOR | CASEHARDENED |
| Relevant Components for NSN - 2815-00-856-0387, 2815008560387 | ||||
| 2805-00-371-7568 (2805003717568) | 2835-00-626-9669 (2835006269669) | 2840-00-939-3493 (2840009393493) | 2840-01-321-1442 (2840013211442) | |
| 2825-00-309-1763 (2825003091763) | 2835-00-682-5353 (2835006825353) | 2815-00-139-3970 (2815001393970) | 2840-00-866-1571 (2840008661571) | |
| 2840-01-674-1631 (2840016741631) | 2840-01-310-6208 (2840013106208) | 2815-01-690-0888 (2815016900888) | 2835-01-177-9984 (2835011779984) | |
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