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National Stock Number:
5306-00-625-2086
Federal Supply Class:
5306
National Item Identification Number:
006252086
Description:
BOLT,RIBBED SHOULDER
Detail:
An externally threaded fastener whose threaded portion is of one nominal diameter. It has a series of longitudinal ribs, splines or serrations on all or a part of the shoulder. The minor diameter of the ribs must be greater than the major diameter of the threads. See also BOLT, RIBBED NECK.
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Manufacturer Information:
| 6252086 | 19207 | U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNF | | NOMINAL THREAD DIAMETER | 0.750 INCHES | | THREAD QUANTITY PER INCH | 16 | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 1.625 INCHES MINIMUM | | FASTENER LENGTH | 3.125 INCHES NOMINAL | | MATERIAL | STEEL COMP 1035 OR | | STEEL COMP 1536 OR | | STEEL COMP 1037 OR | | STEEL COMP 1038 OR | | STEEL COMP 1040 OVERALL | | HARDNESS RATING | 21.0 ROCKWELL C MINIMUM AND | | 30.0 ROCKWELL C MAXIMUM OVERALL | | MINIMUM TENSILE STRENGTH | 114000 POUNDS PER SQUARE INCH | | HEAD STYLE | FLAT CHAMFER | | HEAD DIAMETER | 1.125 INCHES NOMINAL | | HEAD HEIGHT | 0.312 INCHES NOMINAL | | SHOULDER SHAPE | RIBBED FIRST SHOULDER | | SHOULDER DIAMETER | 0.835 INCHES MINIMUM AND | | 0.840 INCHES MAXIMUM FIRST SHOULDER | | SHOULDER LENGTH | 0.844 INCHES NOMINAL FIRST SHOULDER | | RIB MAJOR DIAMETER | 0.870 INCHES MINIMUM AND | | 0.880 INCHES MAXIMUM | | RIB LENGTH | 0.719 INCHES MINIMUM AND | | 0.781 INCHES MAXIMUM | | DISTANCE FROM LARGEST DIAMETER OF BEARING SURFACE OF HEAD TO RIBS | 0.062 INCHES MINIMUM AND | | 0.125 INCHES MAXIMUM | | FEATURES PROVIDED | CASEHARDENED |
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