| MRC | Name | Details |
|---|
| AAUH | SPLINE MINOR DIAMETER | 0.850 INCHES NOMINAL |
| AAUJ | SPLINE MAJOR DIAMETER | 1.000 INCHES NOMINAL |
| ABFF | FURNISHED ITEMS | LIGHTENING HOLE |
| ABHE | OUTSIDE DIAMETER | 6.200 INCHES NOMINAL |
| ABHP | OVERALL LENGTH | 3.100 INCHES NOMINAL |
| ABPR | FIRST STEP DIAMETER | 1.750 INCHES NOMINAL AA END |
| ABPS | FIRST STEP LENGTH | 0.720 INCHES NOMINAL AA END |
| ABPT | SECOND STEP DIAMETER | 4.600 INCHES NOMINAL AA END |
| ABPU | SECOND STEP LENGTH | 0.555 INCHES NOMINAL AA END |
| ABSA | SPLINE QUANTITY | 6 |
| ABSC | SPLINE MINOR DIAMETER | 0.850 INCHES NOMINAL |
| ALNC | HUB OUTSIDE DIAMETER | 1.378 INCHES NOMINAL AA END |
| AQPL | FACE WIDTH | 0.430 INCHES NOMINAL |
| AQWM | GUIDE | NOT INCLUDED |
| ARJD | DESIGN FORM | PLAIN |
| ASBP | BORE TYPE | STRAIGHT SPLINE |
| AXFH | SPLINE LENGTH | 3.100 INCHES NOMINAL |
| AXND | COUNTERBORE FEATURE | NOT INCLUDED |
| BSGG | KEYING FACILITY | NOT INCLUDED |
| BXSJ | LIGHTENING HOLE | INCLUDED |
| BYDZ | PROTRUDING HUB CHARACTERISTIC | STEPPED |
| BYFB | GROOVE/STEP LOCATION | BOTH ENDS |
| BYFH | BELT/CHAIN/FILM SIZE FOR WHICH DESIGNED | ROLLER CHAIN |
| BYFJ | ROLLER CHAIN PITCH TYPE FOR WHICH DESIGNED | SINGLE PITCH |
| BYFL | TEETH ROW QUANTITY | 1 |
| BYFN | TEETH QUANTITY PER ROW | 12 |
| BYFQ | HARDNESS RATING TEST METHOD | NOT RATED |
| BYFS | BORE BEARING | NOT INCLUDED |
| BYFW | HUB EXTERNAL KEYWAY | NOT INCLUDED |
| BYGF | TOOTH PITCH | 1.500 INCHES NOMINAL |
| BYZL | FIRST STEP FACE LARGEST DIAMETER AND LOCATION | 1.750 INCHES NOMINAL AA END AND 1.750 INCHES NOMINAL BB END |
| BYZM | SECOND STEP FACE LARGEST DIAMETER AND LOCATION | 4.600 INCHES NOMINAL AA END AND 4.600 INCHES NOMINAL BB END |
| BYZN | FIRST STEP LENGTH AND LOCATION | 0.720 INCHES NOMINAL AA END AND 0.720 INCHES NOMINAL BB END |
| BYZP | SECOND STEP LENGTH AND LOCATION | 0.555 INCHES NOMINAL AA END AND 0.555 INCHES NOMINAL BB END |
| BYZX | THIRD STEP LENGTH AND LOCATION | 0.060 INCHES NOMINAL AA END AND 0.060 INCHES NOMINAL BB END |
| CLYR | HUB END OUTSIDE DIAMETER AND LOCATION | 1.378 INCHES NOMINAL AA END AND 1.378 INCHES NOMINAL BB END |
| CLYS | DISTANCE FROM OUTSIDE FLANGE/RIM TO HUB END AND LOCATION | 1.335 INCHES NOMINAL AA END AND 1.335 INCHES NOMINAL BB END |
| MATL | MATERIAL | "STEEL, MIL-S-15083, CLASS CW" |
| MATT | MATERIAL | STEEL UNS J03007 |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | "MIL-S-15083, CLASS CW MIL SPEC SINGLE MATERIAL RESPONSE" |
| STYL | STYLE DESIGNATOR | PLAIN |
| STYL | III STYLE DESIGNATOR | PLAIN |