4940-01-485-0741 BRUSH Index 5306-01-485-0743 BOLT,MACHINE

National Stock Number:
5306-01-485-0742

Federal Supply Class:
5306

National Item Identification Number:
014850742

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:
122-6602812 PC 3553711NAVAL SEA SYSTEMS COMMAND
122-6602814 PC 3553711NAVAL SEA SYSTEMS COMMAND


Techincal Specification:
FASTENER LENGTH3.750 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-B-857 GR B MIL SPEC 2ND MATERIAL RESPONSE OVERALL
MATERIALSTEEL OVERALL
NOMINAL THREAD DIAMETER1.250 INCHES
THREAD DIRECTIONRIGHT-HAND
THREAD CLASS2A
THREAD QUANTITY PER INCH7
THREAD SERIES DESIGNATORUNC


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