| Item Name | Piston Internal Com |
| INC Code | 16509 |
| Federal Supply Group (FSG) | Engines Turbines and Components |
| Federal Supply Class (FSC) | 2815 Diesel Engines and Components |
| National Item Identification Number (NIIN) | 00-395-4831 (003954831) |
| NCB Code | USA (00) |
| Manufacturer | Caterpillar Inc, Gould Inc |
| MRC | Criteria | Characteristic |
|---|---|---|
| AXGB | RING GROOVE WIDTH | 3.6880 INCHES MINIMUM AND 3.8390 INCHES MAXIMUM 1ST RING |
| AXGD | RING GROOVE DIAMETER | 0.188 INCHES NOMINAL ALL RINGS |
| AXPH | OIL GROOVE | INCLUDED |
| AXPK | DISTANCE FROM PIN HOLE CENTER TO EXTREME TOP | 3.688 INCHES NOMINAL |
| AXPL | PIN HOLE BUSHING | INCLUDED |
| AXPN | RETAINING RING GROOVE | INCLUDED |
| AXPP | PIN | INCLUDED |
| AXPQ | PIN TYPE FOR WHICH DESIGNED | LOCKING |
| AXPR | RING | INCLUDED |
| BQBL | CARBON GROOVE | INCLUDED |
| MATT | MATERIAL | ALUMINUM ALLOY |
| AASK | HEAD STYLE | CONTOUR |
| ABKW | OVERALL HEIGHT | 6.125 INCHES NOMINAL |
| ABMZ | DIAMETER | 4.250 INCHES NOMINAL |
| ACXU | PINHOLE DIAMETER | 1.8460 INCHES MINIMUM AND 1.8560 INCHES MAXIMUM |
| AGYE | SURFACE FINISH | FINISHED |
| AXFR | FINISHED SIZE DESIGNATION | STANDARD |
| AXFT | SKIRT TYPE | SOLID |
| AXFX | SKIRT BOTTOM CUTAWAY FEATURE | NOT INCLUDED |
| AXFZ | RING GROOVE QUANTITY | 6 |
| Relevant Components for NSN - 2815-00-395-4831, 2815003954831 | ||||
| 2815-01-490-6997 (2815014906997) | 2815-00-428-9719 (2815004289719) | 2815-01-118-9828 (2815011189828) | 2815-01-105-3059 (2815011053059) | |
| 2815-01-680-4011 (2815016804011) | 2815-01-486-0769 (2815014860769) | 2815-01-611-7861 (2815016117861) | 2815-00-768-2394 (2815007682394) | |
| 2815-01-500-0630 (2815015000630) | 2815-01-430-4020 (2815014304020) | 2815-01-601-6609 (2815016016609) | 2815-01-512-3015 (2815015123015) | |
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AS 6081:2012 Certification |
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ESD S20.20-2014 Certification |
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