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National Stock Number:
5306-00-973-7627
Federal Supply Class:
5306
National Item Identification Number:
009737627
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.
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Manufacturer Information:
| 1-4 20X3 1-2IN | 14959 | CRANE CO DIV VALVE DIV |
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Techincal Specification:
| FASTENER LENGTH | 3.500 INCHES NOMINAL | | FEATURES PROVIDED | UNFINISHED HEAD AND HEX NUT | | GRIP LENGTH | 2.500 INCHES NOMINAL | | HEAD HEIGHT | 0.156 INCHES MINIMUM AND 0.188 INCHES MAXIMUM | | HEAD STYLE | SQUARE | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A107 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL OVERALL | | MINIMUM TENSILE STRENGTH | 60000 POUNDS PER SQUARE INCH | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 1.000 INCHES MINIMUM | | THREAD QUANTITY PER INCH | 20 | | THREAD SERIES DESIGNATOR | UNC | | WIDTH BETWEEN FLATS | 0.362 INCHES MINIMUM AND 0.375 INCHES MAXIMUM |
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