5306-01-190-2175 BOLT,MACHINE Index 5305-01-190-2177 SCREW,EXTERNALLY RELIEVED BODY

National Stock Number:
5305-01-190-2176

Federal Supply Class:
5305

National Item Identification Number:
011902176

Description:
SCREW,EXTERNALLY RELIEVED BODY

Detail:
An externally threaded fastener whose threaded portion is of one nominal diameter, and whose unthreaded portion has been machined or ground in one or more places or over its entire length to a maximum diameter less than the minimum pitch diameter of the thread (excludes undercut for thread relief). It is No. 0 (0.060 IN.) (1.5 mm) or larger, and is designed to be held or driven with either a wrench or inserted driver (excluding internal socket and multiple spline types) or both in sizes below No. 10 (0.190 IN.) (5 mm) and larger sizes must have a head designed for any type inserted driver (excluding internal socket and multiple spline types) but may also be designed for external wrenching. A locking feature may be incorporated in the design of the head or threads. See also BOLT, EXTERNALLY RELIEVED BODY and BOLT, INTERNAL WRENCHING.


Manufacturer Information:
0098-LL-TJ2-280553711NAVAL SEA SYSTEMS COMMAND
519068753711NAVAL SEA SYSTEMS COMMAND


Techincal Specification:
THREAD SERIES DESIGNATORUNF
NOMINAL THREAD DIAMETER0.375 INCHES
THREAD QUANTITY PER INCH24
THREAD CLASS2A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.580 INCHES MINIMUM AND
0.600 INCHES MAXIMUM
FASTENER LENGTH1.420 INCHES MINIMUM AND
1.440 INCHES MAXIMUM
MATERIALSTEEL COMP 1013 OR
STEEL COMP 1015 OR
STEEL COMP 1016 OR
STEEL COMP 1017 OR
STEEL COMP 1018 OR
STEEL COMP 1019 OR
STEEL COMP 1020 OR
STEEL COMP 1021 OR
STEEL COMP 1022 OR
STEEL COMP 1023 OR
STEEL COMP 1524 OR
STEEL COMP 1025 OR
STEEL COMP 1026 OR
STEEL COMP 1527 OR
STEEL COMP 1029 OR
STEEL COMP 1030 OR
STEEL COMP 1033 OR
STEEL COMP 1034 OR
STEEL COMP 1035 OR
STEEL COMP 1536 OR
STEEL COMP 1037 OR
STEEL COMP 1038 OR
STEEL COMP 1039 OR
STEEL COMP 1040 OR
STEEL COMP 1541 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD ALL MATERIAL RESPONSES OVERALL
SURFACE TREATMENTCADMIUM AND
CHROMATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TYPE 2 CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
HARDNESS RATING32.0 ROCKWELL C MINIMUM AND
38.0 ROCKWELL C MAXIMUM OVERALL
MINIMUM TENSILE STRENGTH150000 POUNDS PER SQUARE INCH
MINIMUM YIELD STRENGTH120000 POUNDS PER SQUARE INCH
HEAD STYLEHEXAGON
HEAD HEIGHT0.226 INCHES MINIMUM AND
0.243 INCHES MAXIMUM
WIDTH BETWEEN FLATS0.551 INCHES MINIMUM AND
0.562 INCHES MAXIMUM
INTERNAL DRIVE STYLEW/O INTERNAL DRIVE
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY1
FIRST DIAMETER FROM HEAD0.260 INCHES MINIMUM AND
0.270 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER0.820 INCHES MINIMUM AND
0.860 INCHES MAXIMUM


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