| BARREL HEIGHT | 0.305 INCHES MINIMUM AND 0.335 INCHES MAXIMUM |
| HARDNESS RATING | 31.0 ROCKWELL C MINIMUM AND 37.0 ROCKWELL C MAXIMUM |
| LOCKING FEATURE | PREVAILING TORQUE WITH NONMETALLIC INSERT |
| MATERIAL DOCUMENT AND CLASSIFICATION | AISI ASSN STD 2ND MATERIAL RESPONSE OR AISI ASSN STD 3RD MATERIAL RESPONSE OVERALL |
| MATERIAL | PLASTIC POLYAMIDE (NYLON) OR STEEL COMP 4130 OR STEEL COMP 4340 OVERALL |
| NOMINAL THREAD SIZE | 0.312 INCHES |
| NUT HEIGHT | 0.421 INCHES MINIMUM AND 0.451 INCHES MAXIMUM |
| NUT DIAMETER | 0.550 INCHES MINIMUM AND 0.553 INCHES MAXIMUM |
| NUT STYLE | NON-FLOATING SELF-LOCKING BARREL |
| NUT LENGTH | 0.531 INCHES MINIMUM AND 0.561 INCHES MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 1,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL EXCEPT INSERT |
| SURFACE TREATMENT | CADMIUM OVERALL EXCEPT INSERT |
| TEMP RATING | 250.0 FAHRENHEIT NOMINAL |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD CLASS | 3B |
| THREAD SERIES | UNF |
| THREAD QUANTITY PER INCH | 24 |