CRITICALITY CODE JUSTIFICATION | ZZZY |
HARDNESS RATING | 26.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM |
LOCKING FEATURE | PREVAILING TORQUE WITH NONMETALLIC INSERT |
MATERIAL DOCUMENT AND CLASSIFICATION | FED STD-66 FED STD SINGLE MATERIAL RESPONSE OVERALL EXCEPT INSERT |
MATERIAL | STEEL COMP 1137 OVERALL EXCEPT INSERT |
NOMINAL THREAD SIZE | 0.250 INCHES |
NUT HEIGHT | 0.240 INCHES MINIMUM AND 0.360 INCHES MAXIMUM |
NUT STYLE | HEXAGON |
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS | MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS |
SPECIAL FEATURES | FOR ADDITIONAL DESCRIPTION AND INFORMATION CONCERNING THIS ITEM,REFER TO SPCCINST 4440.376 SERIES,CHAPTER 9 |
WIDTH ACROSS FLATS | 0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TYPE 2,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL EXCEPT INSERT |
SURFACE TREATMENT | CADMIUM OVERALL EXCEPT INSERT |
TEMP RATING | 250.0 FAHRENHEIT NOMINAL |
THREAD CLASS | 3B |
THREAD DIRECTION | RIGHT-HAND |
THREAD QUANTITY PER INCH | 20 |
THREAD SERIES | UNC |