| THREAD SERIES | UNJF |
| NOMINAL THREAD SIZE | 0.250 INCHES |
| THREAD QUANTITY PER INCH | 28 |
| THREAD CLASS | 3B |
| THREAD DIRECTION | RIGHT-HAND |
| MATERIAL | IRON ALLOY 660 AND |
| STEEL COMP 321 CHANNEL |
| STEEL COMP 1035 AND |
| STEEL COMP 1040 AND |
| STEEL COMP 1050 AND |
| STEEL COMP 1042 AND |
| STEEL COMP 4130 AND |
| STEEL COMP 4340 AND |
| STEEL COMP 8740 NUT |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5525 ASSN STD 1ST MATERIAL RESPONSE OR |
| AMS 5732 ASSN STD 1ST MATERIAL RESPONSE OR |
| AMS 5737 ASSN STD 1ST MATERIAL RESPONSE AND |
| AMS 5510 ASSN STD 2ND MATERIAL RESPONSE CHANNEL |
| ASTM A29 ASSN STD ALL MATERIAL RESPONSES NUT |
| SURFACE TREATMENT | CADMIUM NUT |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416 FED SPEC SINGLE TREATMENT RESPONSE NUT |
| HARDNESS RATING | 49.0 ROCKWELL C MAXIMUM |
| NUT STYLE | GANG CHANNEL, SELF LOCKING |
| LOCKING FEATURE | PREVAILING TORQUE ALL METAL DESIGN |
| CHANNEL STYLE | STRAIGHT TYPE |
| OVERALL LENGTH | 3.936 INCHES NOMINAL |
| OVERALL WIDTH | 0.516 INCHES MAXIMUM |
| ASSEMBLY OVERALL HEIGHT | 0.281 INCHES MAXIMUM |
| CHANNEL HEIGHT | 0.281 INCHES MAXIMUM |
| NUT SPACING | 1.000 INCHES NOMINAL |
| NUT QUANTITY | 4 |
| LUBRICATION | DRY FILM LUBRICANT |
| TEMP RATING | 450.0 DEG FAHRENHEIT MAXIMUM |