5905-01-239-2009 RESISTOR,VARIABLE,NONWIRE WOUND, Index 5306-01-239-2011 BOLT,SHOULDER

National Stock Number:
5306-01-239-2010

Federal Supply Class:
5306

National Item Identification Number:
012392010

Description:
BOLT,MACHINE

Detail:
An externally threaded fastener designed for insertion through holes in assembled parts and normally intended to be tightened or released by torquing a nut. The threaded and unthreaded portions are both of one nominal diameter of 0.190 inch (5 mm) or larger. The head is not designed to be held or driven with an inserted driver or by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. For items having a grip length portion machined to a tolerance of 0.0015 inch (0.038 mm) or less, BOLT, SHEAR. See also SCREW, CAP, HEXAGON HEAD and SCREW, MACHINE.


Manufacturer Information:
MS9557-2996906MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M


Techincal Specification:
EXTENDED WASHER THICKNESS0.060 INCHES MINIMUM
EXTENDED WASHER DIAMETER0.428 INCHES MINIMUM AND 0.448 INCHES MAXIMUM
FASTENER LENGTH2.115 INCHES MINIMUM AND 2.135 INCHES MAXIMUM
FEATURES PROVIDEDFINISHED HEAD
GRIP LENGTH1.315 INCHES MINIMUM AND 1.375 INCHES MAXIMUM
HARDNESS RATING24.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM OVERALL
HEAD HEIGHT0.290 INCHES MINIMUM AND 0.310 INCHES MAXIMUM
HEAD STYLEDOUBLE HEXAGON EXTENDED WASHER
MATERIAL DOCUMENT AND CLASSIFICATIONAMS5731 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALIRON ALLOY 660 OVERALL
MINIMUM YIELD STRENGTH85000 POUNDS PER SQUARE INCH
MINIMUM TENSILE STRENGTH130000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER0.250 INCHES
WIDTH BETWEEN FLATS0.312 INCHES NOMINAL
SURFACE FINISH32.0 MICROINCHES BEARING SURFACE OF HEAD
SURFACE FINISH32.0 MICROINCHES GRIP
SURFACE FINISH32.0 MICROINCHES THREADS
THREAD DIRECTIONRIGHT-HAND
THREAD CLASS3A
THREAD LENGTH0.669 INCHES MINIMUM AND 0.820 INCHES MAXIMUM
THREAD SERIES DESIGNATORUNJF
THREAD QUANTITY PER INCH28


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