| BARREL HEIGHT | 0.640 INCHES MINIMUM AND 0.650 INCHES MAXIMUM |
| FEATURES PROVIDED | FLOATING NUT |
| HARDNESS RATING | 36.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM |
| LOCKING FEATURE | PREVAILING TORQUE ALL METAL DESIGN |
| LUBRICATION | DRY FILM LUBRICANT |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-6049 MIL SPEC 1ST MATERIAL RESPONSE OR AMS 6322 ASSN STD 1ST MATERIAL RESPONSE OR MIL-S-8844,CL 1 MIL SPEC 2ND MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 8740 OR STEEL COMP 4340 OVERALL |
| NOMINAL THREAD SIZE | 0.625 INCHES |
| NUT DIAMETER | 1.057 INCHES MINIMUM AND 1.060 INCHES MAXIMUM |
| NUT LENGTH | 1.115 INCHES MINIMUM AND 1.135 INCHES MAXIMUM |
| NUT HEIGHT | 0.844 INCHES MAXIMUM |
| NUT STYLE | FLOATING SELF-LOCKING BARREL |
| SPECIFICATION/STANDARD DATA | 80205-NAS577 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM AND CHROMATE OVERALL |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD CLASS | 3B |
| THREAD QUANTITY PER INCH | 18 |
| THREAD SERIES | UNJF |