Part Number: 21C1539-027

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CONDITION:
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GENERAL ELECTRIC COMPANY7482
GENERAL ELECTRIC COMPANY7482
MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M96906
GENERAL ELECTRIC COMPANY7482
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.625 INCHES MINIMUM AND 0.685 INCHES MAXIMUM
FASTENER LENGTH0.875 INCHES NOMINAL
HEAD STYLEDOUBLE HEXAGON W/HOLE
HEAD HEIGHT0.260 INCHES NOMINAL
WIDTH BETWEEN FLATS0.243 INCHES MINIMUM AND 0.251 INCHES MAXIMUM
EXTENDED WASHER DIAMETER0.375 INCHES NOMINAL
EXTENDED WASHER THICKNESS0.040 INCHES MINIMUM AND 0.050 INCHES MAXIMUM
NOMINAL THREAD DIAMETER0.190 INCHES
GRIP LENGTH0.190 INCHES MINIMUM AND 0.250 INCHES MAXIMUM
FEATURES PROVIDEDFINISHED HEAD
NONSTANDARD THREAD PITCH DIAMETER+0.1644/+0.1667 INCHES
THREAD QUANTITY PER INCH32
MINIMUM TENSILE STRENGTH130000 POUNDS PER SQUARE INCH
HARDNESS RATING248.0 BRINELL STANDARD MINIMUM OVERALL AND 341.0 BRINELL STANDARD MAXIMUM OVERALL
MINIMUM YIELD STRENGTH85000 POUNDS PER SQUARE INCH
SURFACE FINISH32.0 MICROINCHES THREADS
SURFACE FINISH63.0 MICROINCHES BEARING SURFACE OF HEAD
SURFACE FINISH63.0 MICROINCHES GRIP
MATERIALIRON ALLOY 660 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5735 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
THREAD SERIES DESIGNATORUNF
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 .19 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 . 15 inch ( . 38 mm) or less, BOLT, SHEAR. See also SCREW, CAP, HEXAGON HEAD and SCREW, MACHINE.