5306-00-143-3336 BOLT,MACHINE Index 5340-00-143-3340 INSERT,SCREW THREAD

National Stock Number:
5306-00-143-3339

Federal Supply Class:
5306

National Item Identification Number:
001433339

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.


Manufacturer Information:
1107287618876U S ARMY AVIATION AND MISSILE COMMAND


Techincal Specification:
FASTENER LENGTH3.969 INCHES MINIMUM AND 4.031 INCHES MAXIMUM
HEAD DIAMETER1.852 INCHES MINIMUM AND 1.875 INCHES MAXIMUM
HEAD HEIGHT1.236 INCHES MINIMUM AND 1.250 INCHES MAXIMUM
INTERNAL DRIVE STYLEHEXAGON
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-5626 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-5000 MIL SPEC 2ND MATERIAL RESPONSE OR MIL-S-8503 MIL SPEC 3RD MATERIAL RESPONSE OR MIL-S-6098 MIL SPEC 4TH MATERIAL RESPONSE OR MIL-S-6049 MIL SPEC 5TH MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 4140 OR STEEL COMP E4340 OR STEEL COMP 6150 OR STEEL COMP 8735 OR STEEL COMP 8740 OVERALL
MINIMUM YIELD STRENGTH155000 POUNDS PER SQUARE INCH
MINIMUM TENSILE STRENGTH180000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER1.250 INCHES
SURFACE FINISH63.0 MICROINCHES OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 2,CL 3 FED SPEC ALL TREATMENT RESPONSES OVERALL
SURFACE TREATMENTCADMIUM AND CHROMATE OVERALL
THREAD CLASS2A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH2.940 INCHES MINIMUM AND 3.060 INCHES MAXIMUM
THREAD QUANTITY PER INCH12
THREAD SERIES DESIGNATORUNF
WIDTH ACROSS FLATS0.875 INCHES MINIMUM AND 0.885 INCHES MAXIMUM


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