| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 3A NUT THREAD |
| AAJE | THREAD PITCH DIAMETERS | +0.2847 TO 0.2857 INCHES STUD THREAD |
| AAJF | THREAD DIRECTION | RIGHT-HAND NUT THREAD |
| AAJF | THREAD DIRECTION | RIGHT-HAND STUD THREAD |
| AASA | THREAD LENGTH | 0.540 INCHES MINIMUM NUT THREAD AND 0.680 INCHES MAXIMUM NUT THREAD |
| AASA | THREAD LENGTH | 0.580 INCHES MINIMUM STUD THREAD AND 0.620 INCHES MAXIMUM STUD THREAD |
| AAZE | SHANK DIAMETER | 0.223 INCHES MINIMUM AND 0.227 INCHES MAXIMUM |
| ABHP | OVERALL LENGTH | 1.380 INCHES MINIMUM AND 1.420 INCHES MAXIMUM |
| CMLP | THREAD QUANTITY PER INCH | 18 STUD THREAD |
| CMLP | THREAD QUANTITY PER INCH | 28 NUT THREAD |
| CQFM | HARDNESS RATING | 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM |
| CQJX | NOMINAL THREAD SIZE | 0.250 INCHES NUT THREAD |
| CQJX | NOMINAL THREAD SIZE | 0.312 INCHES STUD THREAD |
| MATT | MATERIAL | STEEL COMP 8740 OR STEEL COMP 4140 |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 6322 ASSN STD 1ST MATERIAL RESPONSE OR AMS 6382 ASSN STD 2ND MATERIAL RESPONSE |
| SFTT | SURFACE TREATMENT | CADMIUM OVERALL |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS 2400 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| STYL | STYLE DESIGNATOR | STEPPED |
| THSD | THREAD SERIES DESIGNATOR | UNF NUT THREAD |
| THSD | THREAD SERIES DESIGNATOR | UNS STUD THREAD |
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