6620-00-145-6777 ADAPTER,ENGINE PRESSURE TRANSMIT Index 5306-00-145-6784 BOLT,MACHINE

National Stock Number:
5306-00-145-6781

Federal Supply Class:
5306

National Item Identification Number:
001456781

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:
AN16-7588044AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE


Techincal Specification:
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER7.594 INCHES NOMINAL FIRST HOLE
FASTENER LENGTH7.875 INCHES NOMINAL
FEATURES PROVIDEDFINISHED HEAD
GRIP LENGTH6.500 INCHES NOMINAL
HARDNESS RATING26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
HEAD HEIGHT0.515 INCHES MINIMUM AND 0.547 INCHES MAXIMUM
HEAD STYLEHEXAGON
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-5626 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-6049 MIL SPEC 2ND MATERIAL RESPONSE OR MIL-S-6050 MIL SPEC 3RD MATERIAL RESPONSE OR MIL-S-6098 MIL SPEC 4TH MATERIAL RESPONSE OR MIL-S-6758 MIL SPEC 5TH MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 4140 OR STEEL COMP 8740 OR STEEL COMP 8630 OR STEEL COMP 8735 OR STEEL COMP 4130 OR STEEL COMP 4037 OVERALL
MINIMUM TENSILE STRENGTH125000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER1.000 INCHES
SHANK UNTHREADED HOLE DIAMETER0.141 INCHES MINIMUM FIRST HOLE
WIDTH BETWEEN FLATS1.428 INCHES MINIMUM AND 1.441 INCHES MAXIMUM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 2,CL 3 FED SPEC ALL TREATMENT RESPONSES OVERALL
SURFACE TREATMENTCADMIUM AND CHROMATE OVERALL
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH1.375 INCHES MINIMUM
THREAD SERIES DESIGNATORUNS
THREAD QUANTITY PER INCH14


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