AS9120B, ISO 9001:2015, and FAA AC 0056B Accredited
| 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) | 00-817-9871 (008179871) |
| NCB Code | USA (00) |
| Manufacturer | Progress Rail Locomotive Inc, Hatch And Kirk Inc, General Motors Corp |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAQL | BODY STYLE | CHAMFERED ENDS |
| AASG | CASEHARDENING INDICATOR | CASEHARDENED |
| AATA | COUNTERSINK ANGLE IN DEG | 30.0 |
| AAZQ | HOLE DEPTH | 0.8430 INCHES NOMINAL |
| ABKV | OUTSIDE DIAMETER | 3.68400 INCHES MINIMUM AND 3.68500 INCHES MAXIMUM |
| ABQM | END CHAMFER ANGLE IN DEG | 45.0 |
| ABRC | FIRST HOLE DIAMETER | 0.875 INCHES NOMINAL |
| ABRE | DISTANCE FROM CENTERLINE OF HOLE TO END OF PIN | 1.812 INCHES NOMINAL |
| ADAQ | BODY LENGTH | 6.1150 INCHES MINIMUM AND 6.1350 INCHES MAXIMUM |
| ANTP | BORE STYLE | INSIDE CHAMFER STRAIGHT-THRU BORE |
| FEAT | SPECIAL FEATURES | ONE 0.250 IN. DIA HOLE 0.250 IN. DEEP DRILLED AXIALLY IN ONE END,CENTERED 1.343 IN FROM HORIZONTAL CENTER LINE AND LOCATED 180 DEG FROM CENTERLINE OF RETAINING HOLES |
| MATT | MATERIAL | STEEL COMP 8620 |
| ABRB | HOLE ARRANGEMENT STYLE | TWO HOLES THRU ONE SIDE OF BORE |
| ABRD | SECOND HOLE DIAMETER | 0.875 INCHES NOMINAL |
| ABRF | CENTER TO CENTER DISTANCE BETWEEN HOLES | 2.4950 INCHES MINIMUM AND 2.5050 INCHES MAXIMUM |
| ABXV | BORE DIAMETER | 2.0000 INCHES NOMINAL |
| AETC | METALLIC HARDNESS RATING | 58.0 NOMINAL ROCKWELL C |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | FED STD 66 FED STD SINGLE MATERIAL RESPONSE OR AISI 8620 ASSN STD SINGLE MATERIAL RESPONSE OR SAE 8620 ASSN STD SINGLE MATERIAL RESPONSE |
| ZZZV | FSC APPLICATION DATA | ENGINE,DIESEL |
| Relevant Components for NSN - 2815-00-817-9871, 2815008179871 | ||||
| 2825-00-790-8901 (2825007908901) | 2825-01-010-8535 (2825010108535) | 2825-00-371-7811 (2825003717811) | 2805-01-264-5598 (2805012645598) | |
| 2840-01-375-6452 (2840013756452) | 2805-01-130-2594 (2805011302594) | 2835-01-234-6845 (2835012346845) | 2805-01-714-1073 (2805017141073) | |
| 2840-00-837-2120 (2840008372120) | 2840-01-708-1715 (2840017081715) | 2840-01-200-9553 (2840012009553) | 2805-00-710-5355 (2805007105355) | |
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