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National Stock Number: 5306-01-313-9320
Federal Supply Class: 5306
National Item Identification Number: 013139320
Description: BOLT,INTERNAL WRENCHING
Detail: An externally threaded fastener whose threaded portion is of one nominal diameter, No. 10 (0.190 IN.) (5 mm) or larger. It is designed with an internal socket or internal multiple spline for use with an internal driver. The head is beveled (conical) or cylindrical in shape. Items with cylindrical shaped heads must have an externally relieved body. A locking feature may be incorporated in the design of the head or threads. See also SCREW, CAP, SOCKET HEAD. Excludes SETSCREW; SCREW, SHOULDER; BOLT, SHOULDER; SCREW, EXTERNALLY RELIEVED BODY; BOLT, EXTERNALLY RELIEVED BODY; and SCREW, MACHINE.
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Manufacturer Information:
MS20005H50 | 96906 | MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |
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Techincal Specification:
THREAD SERIES DESIGNATOR | UNF | NOMINAL THREAD DIAMETER | 0.312 INCHES | THREAD QUANTITY PER INCH | 24 | THREAD CLASS | 3A | THREAD DIRECTION | RIGHT-HAND | THREAD LENGTH | 0.538 INCHES MINIMUM AND | | 0.588 INCHES MAXIMUM | FASTENER LENGTH | 3.673 INCHES MINIMUM AND | | 3.703 INCHES MAXIMUM | MATERIAL | STEEL COMP E4340 OR | | STEEL COMP 4140 OR | | STEEL COMP 8740 OR | | STEEL COMP 8735 OR | | STEEL COMP 6150 OVERALL | SURFACE TREATMENT | CADMIUM AND | | CHROMATE OVERALL | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416 TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | HARDNESS RATING | 34.0 ROCKWELL C MINIMUM AND | | 40.0 ROCKWELL C MAXIMUM OVERALL | MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH | HEAD STYLE | BEVEL-CONICAL | HEAD DIAMETER | 0.521 INCHES MINIMUM AND | | 0.531 INCHES MAXIMUM | HEAD HEIGHT | 0.312 INCHES NOMINAL | INTERNAL DRIVE STYLE | HEXAGON | WIDTH ACROSS FLATS | 0.219 INCHES MINIMUM AND | | 0.221 INCHES MAXIMUM | HOLE CONFIGURATION STYLE | ROUND INTERNAL HEXAGON | HOLE TYPE | DRILLED | HOLE QUANTITY | 4 | HOLE DIAMETER | 0.055 INCHES MINIMUM AND | | 0.060 INCHES MAXIMUM | SURFACE FINISH | 32.0 MICROINCHES BEARING SURFACE OF HEAD | | 63.0 MICROINCHES GRIP | | 32.0 MICROINCHES THREADS | SPEC/STD CONTROLLING DATA | | MANUFACTURERS CODE | 96906 | DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | MS20005H50 |
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