| MATERIAL DOCUMENT AND CLASSIFICATION | AMS6348 NATIONAL STD/SPEC 1ST MATERIAL RESPONSE OR AMS6370 NATIONAL STD/SPEC 1ST MATERIAL RESPONSE AND AMS6349 NATIONAL STD/SPEC 2ND MATERIAL RESPONSE OR AMS6382 NATIONAL STD/SPEC 2ND MATERIAL RESPONSE AND AMS6409 NATIONAL STD/SPEC 3RD MATERIAL RESPONSE OR AMS6415 NATIONAL STD/SPEC 3RD MATERIAL RESPONSE AND AMS6411 NATIONAL STD/SPEC 4TH MATERIAL RESPONSE |
| MATERIAL | STEEL COMP 4130 OR STEEL COMP 4140 OR STEEL COMP 4340 OR STEEL COMP 4330 |
| III PART NAME ASSIGNED BY CONTROLLING AGENCY | LUG |
| PROPRIETARY CHARACTERISTICS | PACS |
| NOMINAL THREAD SIZE | 0.625 INCHES NUT THREAD |
| NUT END SHANK DIAMETER | 0.625 INCHES NOMINAL |
| NUT END SHANK LENGTH | 1.43 INCHES NOMINAL |
| OVERALL LENGTH | 2.80 INCHES NOMINAL |
| SHOULDER DIAMETER | 1.00 INCHES NOMINAL |
| SHOULDER LENGTH | 0.56 INCHES NOMINAL |
| STUD END SHANK DIAMETER | 0.748 INCHES MINIMUM AND 0.750 INCHES MAXIMUM |
| STUD END SHANK LENGTH | 0.870 INCHES MINIMUM AND 0.874 INCHES MAXIMUM |
| STYLE DESIGNATOR | SHOULDERED AND STEPPED |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS2404 NATIONAL STD/SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | NICKEL OVERALL |
| THREAD CLASS | 2A NUT THREAD |
| THREAD DIRECTION | RIGHT-HAND NUT THREAD |
| THREAD LENGTH | 0.728 INCHES NOMINAL NUT THREAD |
| THREAD QUANTITY PER INCH | 18 NUT THREAD |
| THREAD SERIES DESIGNATOR | UNF NUT THREAD |