| Item Name | Pin Piston |
| Federal Supply Group (FSG) | Engines Turbines and Components |
| Federal Supply Class (FSC) | 2810 Gasoline Reciprocating Engines Aircraft Prime Mover and Components |
| National Item Identification Number (NIIN) | 00-857-3270 (008573270) |
| NCB Code | USA (00) |
| Manufacturer | Textron Lycoming Inc |
| MRC | Criteria | Characteristic |
|---|---|---|
| ADAQ | BODY LENGTH | 3.7450 INCHES MINIMUM AND 3.7500 INCHES MAXIMUM |
| ANTP | BORE STYLE | INSIDE CHAMFER STRAIGHT-THRU BORE |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 6274 ASSN STD 1ST MATERIAL RESPONSE OR AMS 6294 ASSN STD 2ND MATERIAL RESPONSE OR SAE 8620AQ ASSN STD 1ST MATERIAL RESPONSE |
| AAQL | BODY STYLE | CHAMFERED ENDS |
| AASG | CASEHARDENING INDICATOR | CASEHARDENED |
| AATA | COUNTERSINK ANGLE IN DEG | 45.0 |
| ABKV | OUTSIDE DIAMETER | 1.12430 INCHES MINIMUM AND 1.12460 INCHES MAXIMUM |
| ABQM | END CHAMFER ANGLE IN DEG | 45.0 |
| ABXV | BORE DIAMETER | 0.7620 INCHES MINIMUM AND 0.7630 INCHES MAXIMUM |
| AETC | METALLIC HARDNESS RATING | 73.0 MINIMUM ROCKWELL SUPERFICIAL 30-N |
| MATT | MATERIAL | STEEL COMP 8620 OR STEEL COMP 4620 |
| TEST | TEST DATA DOCUMENT | 81349-MIL-I-6868 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS,BROCHURES,ETC.,THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS,INDUSTRY DIRECTORIES,AND SIMILAR TRADE PUBLICATIONS,REFLECTIN |
| Relevant Components for NSN - 2810-00-857-3270, 2810008573270 | ||||
| 2835-00-219-2995 (2835002192995) | 2840-01-553-8583 (2840015538583) | 2810-00-321-3087 (2810003213087) | 2840-00-730-8469 (2840007308469) | |
| 2805-01-523-8375 (2805015238375) | 2840-01-588-3572 (2840015883572) | 2825-00-961-8353 (2825009618353) | 2815-00-970-8934 (2815009708934) | |
| 2815-01-341-8674 (2815013418674) | 2840-00-602-6043 (2840006026043) | 2835-01-146-3530 (2835011463530) | 2825-00-147-5712 (2825001475712) | |
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