5306-01-207-4721 BOLT,MACHINE Index 5305-01-207-4723 SCREW,EXTERNALLY RELIEVED BODY

National Stock Number:
5306-01-207-4722

Federal Supply Class:
5306

National Item Identification Number:
012074722

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:
125D9100-1394259BECHTEL MARINE PROPULSION CORPORATION


Techincal Specification:
CRITICALITY CODE JUSTIFICATIONZZZY
FASTENER LENGTH5.000 INCHES NOMINAL
HEAD HEIGHT0.691 INCHES MINIMUM AND 0.700 INCHES MAXIMUM
HEAD STYLEHEXAGON
MATERIAL DOCUMENT AND CLASSIFICATIONASTM-A-304 GR4340H ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 4340H OVERALL
MINIMUM YIELD STRENGTH130000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER1.000 INCHES
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSMATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
WIDTH BETWEEN FLATS1.575 INCHES MINIMUM AND 1.625 INCHES MAXIMUM
THREAD CLASS2A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH2.250 INCHES NOMINAL
THREAD QUANTITY PER INCH8
THREAD SERIES DESIGNATORUNC


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