4140-00-018-0187 FAN,CENTRIFUGAL Index 5120-00-018-0189 SOCKET

National Stock Number:
5306-00-018-0188

Federal Supply Class:
5306

National Item Identification Number:
000180188

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:
58347177445RTX CORPORATION
58347192215HOWMET GLOBAL FASTENING SYSTEMS INC


Techincal Specification:
THREAD DIRECTIONRIGHT-HAND
FASTENER LENGTH0.552 INCHES MINIMUM AND
0.572 INCHES MAXIMUM
MATERIALSTEEL COMP 601 OVERALL
THREAD LENGTH0.356 INCHES MINIMUM AND
0.402 INCHES MAXIMUM
HEAD STYLEHEXAGON
THREAD SERIES DESIGNATORUNJF
NOMINAL THREAD DIAMETER0.312 INCHES
THREAD QUANTITY PER INCH24
THREAD CLASS3A
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 6304 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENTNICKEL AND
CADMIUM OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONAMS 2416 ASSN STD ALL TREATMENT RESPONSES OVERALL
HARDNESS RATING30.0 ROCKWELL C MINIMUM AND
38.0 ROCKWELL C MAXIMUM OVERALL
HEAD HEIGHT0.271 INCHES MINIMUM AND
0.291 INCHES MAXIMUM
WIDTH BETWEEN FLATS0.679 INCHES MINIMUM AND
0.690 INCHES MAXIMUM
HOLE CONFIGURATION STYLEHEXAGON FLATS
HOLE TYPEDRILLED
HOLE QUANTITY6
HOLE DIAMETER0.070 INCHES NOMINAL
GRIP LENGTH0.170 INCHES MINIMUM AND
0.190 INCHES MAXIMUM
SURFACE FINISH63.0 MICROINCHES BEARING SURFACE OF HEAD
63.0 MICROINCHES GRIP
FEATURES PROVIDEDFINISHED HEAD


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