| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 3A |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASA | THREAD LENGTH | 0.286 INCHES NOMINAL |
| AASK | HEAD STYLE | HEXAGON EXTENDED WASHER |
| AASU | HEAD HEIGHT | 0.140 INCHES MINIMUM AND 0.172 INCHES MAXIMUM |
| AATB | WIDTH BETWEEN FLATS | 0.435 INCHES NOMINAL |
| AATC | EXTENDED WASHER DIAMETER | 0.435 INCHES NOMINAL |
| AATD | EXTENDED WASHER THICKNESS | 0.015 INCHES MINIMUM AND 0.025 INCHES MAXIMUM |
| AAWB | SHANK UNTHREADED HOLE DIAMETER | 0.076 INCHES MINIMUM FIRST HOLE AND 0.086 INCHES MAXIMUM FIRST HOLE |
| AAWC | FIRST DIAMETER FROM HEAD | 0.3119 INCHES MINIMUM AND 0.3130 INCHES MAXIMUM |
| AAWD | SECOND DIAMETER FROM HEAD | 0.187 INCHES MINIMUM AND 0.197 INCHES MAXIMUM |
| AHYM | NOMINAL THREAD DIAMETER | 0.2500 INCHES |
| CRZS | DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 2.891 INCHES NOMINAL FIRST HOLE |
| CSNG | EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 1 |
| SFTT | SURFACE TREATMENT | CADMIUM OVERALL |
| THSD | THREAD SERIES DESIGNATOR | UNJF |
| CQFM | HARDNESS RATING | 46.0 ROCKWELL C MINIMUM OVERALL AND 50.0 ROCKWELL C MAXIMUM OVERALL |
| MATT | MATERIAL | STEEL CORROSION RESISTING OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | AMS6485 ASSN STD SINGLE MATERIAL RESPONSE OVERALL OR AMS6487 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| AASB | FASTENER LENGTH | 3.051 INCHES NOMINAL |
| AAWH | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 2.666 INCHES MINIMUM AND 2.686 INCHES MAXIMUM |
| AAWJ | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER | 2.765 INCHES NOMINAL |
| AGAV | END ITEM IDENTIFICATION | PACER DAWN |
| CMLP | THREAD QUANTITY PER INCH | 28 |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | NAS672 ASSN STD SINGLE TREATMENT RESPONSE OVERALL OR AMS2416 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
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