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National Stock Number:
5306-00-206-4256
Federal Supply Class:
5306
National Item Identification Number:
002064256
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:
| 521296 | 02978 | RENK AMERICA LLC | | 8713462 | 19207 | U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM |
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Techincal Specification:
| THREAD DIRECTION | RIGHT-HAND | | FASTENER LENGTH | 3.735 INCHES MINIMUM AND | | 3.765 INCHES MAXIMUM | | MATERIAL | STEEL COMP 8640 OR | | STEEL COMP 8740 OR | | STEEL COMP 4140 OVERALL | | THREAD LENGTH | 1.045 INCHES MINIMUM AND | | 1.135 INCHES MAXIMUM | | HEAD STYLE | HEXAGON | | THREAD SERIES DESIGNATOR | UNF | | NOMINAL THREAD DIAMETER | 0.312 INCHES | | THREAD QUANTITY PER INCH | 24 | | THREAD CLASS | 3A | | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A322 ASSN STD ALL MATERIAL RESPONSES OR | | ASTM A331 ASSN STD ALL MATERIAL RESPONSES OVERALL | | SURFACE TREATMENT | CADMIUM OVERALL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 1,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | | HARDNESS RATING | 32.0 ROCKWELL C MINIMUM AND | | 36.0 ROCKWELL C MAXIMUM OVERALL | | HEAD HEIGHT | 0.280 INCHES NOMINAL | | WIDTH BETWEEN FLATS | 0.490 INCHES MINIMUM AND | | 0.502 INCHES MAXIMUM | | GRIP LENGTH | 2.630 INCHES MINIMUM AND | | 2.690 INCHES MAXIMUM | | FEATURES PROVIDED | FINISHED HEAD |
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