5306-00-740-7641 BOLT,EXTERNALLY RELIEVED BODY Index 2930-00-740-7649 SEAL ASY ENGINE SHR

National Stock Number:
5306-00-740-7642

Federal Supply Class:
5306

National Item Identification Number:
007407642

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:
5360007407642SCY13E.C.A ETABLISSEMENT CENTRALD'APPROVISIONNEMENT DES FORCES ARMEE
740764219207U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM


Techincal Specification:
FASTENER LENGTH2.109 INCHES MINIMUM AND 2.141 INCHES MAXIMUM
FEATURES PROVIDEDFINISHED HEAD
HARDNESS RATING28.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
HEAD HEIGHT0.484 INCHES MINIMUM AND 0.516 INCHES MAXIMUM
HEAD STYLEHEXAGON
LOCKING FEATUREDISTORTIONS BEARING SURFACE OF HEAD
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD ALL MATERIAL RESPONSES OVERALL
MATERIALSTEEL COMP 8740 OR STEEL COMP 8640 OR STEEL COMP 4140 OR STEEL COMP 1340 OVERALL
NOMINAL THREAD DIAMETER0.875 INCHES
SPECIAL FEATURESBODY DIA REDUCED TO 0.777 IN. DIA FROM THE END TO 0.188 IN. FROM UNDERSIDE OF HEAD
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 1,CL 3 FED SPEC 1ST TREATMENT RESPONSE OR QQ-Z-325,TY 1,CL 3 FED SPEC 2ND TREATMENT RESPONSE OVERALL
SURFACE TREATMENTCADMIUM OR ZINC OVERALL
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.797 INCHES MINIMUM AND 0.828 INCHES MAXIMUM
THREAD SERIES DESIGNATORUNF
THREAD QUANTITY PER INCH14
WIDTH BETWEEN FLATS1.108 INCHES MINIMUM AND 1.125 INCHES MAXIMUM


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