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National Stock Number:
5306-01-556-6552
Federal Supply Class:
5306
National Item Identification Number:
015566552
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:
| 31161620 | 0Y3H3 | FASTENAL COMPANY | | 428997C1 | 338X5 | ND DEFENSE LLC | | AM00-95242 | 338X5 | ND DEFENSE LLC |
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Techincal Specification:
| EXTENDED WASHER DIAMETER | 1.07 INCHES NOMINAL | | FASTENER LENGTH | 4.25 INCHES NOMINAL | | HEAD HEIGHT | 0.56 INCHES NOMINAL | | HEAD STYLE | CHAMFER FLANGE | | MATERIAL DOCUMENT AND CLASSIFICATION | NAVISTAR SPEC A-31 PART 1 AND PART 2 MFR REF SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL OVERALL | | III PART NAME ASSIGNED BY CONTROLLING AGENCY | BOLT,FLANGED HD -1/2-20 | | PROPRIETARY CHARACTERISTICS | PACS | | NOMINAL THREAD DIAMETER | 0.50 INCHES | | TEE HEAD FLANGE THICKNESS | 0.08 INCHES NOMINAL | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 1.25 INCHES NOMINAL | | THREAD SERIES DESIGNATOR | UNRF |
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