4920-00-603-0975 FIXTURE,AIRCRAFT MAINTENANCE Index 4920-00-603-0979 FIXTURE,AIRCRAFT MAINTENANCE

National Stock Number:
5306-00-603-0976

Federal Supply Class:
5306

National Item Identification Number:
006030976

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:
5B21-428-1143999THE BOEING COMPANY


Techincal Specification:
FASTENER LENGTH1.782 INCHES NOMINAL
FEATURES PROVIDEDFINISHED HEAD
HEAD HEIGHT0.250 INCHES NOMINAL
HEAD STYLEHEXAGON
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-634 FED SPEC 1ST MATERIAL RESPONSE OR QQ-S-634 FED SPEC 2ND MATERIAL RESPONSE OR QQ-S-637 FED SPEC 3RD MATERIAL RESPONSE OR QQ-S-637 FED SPEC 4TH MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 1018 OR STEEL COMP 1212 OR STEEL COMP 1213 OR STEEL COMP 1117 OVERALL
NOMINAL THREAD DIAMETER0.250 INCHES
WIDTH BETWEEN FLATS0.500 INCHES NOMINAL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 1,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTCADMIUM OVERALL
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.428 INCHES MINIMUM
THREAD SERIES DESIGNATORUNF
THREAD QUANTITY PER INCH28


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