5305-01-398-5271 SETSCREW Index 5360-01-398-5273 SPRING,HELICAL,COMPRESSION

National Stock Number:
5306-01-398-5272

Federal Supply Class:
5306

National Item Identification Number:
013985272

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:
637040353711NAVAL SEA SYSTEMS COMMAND


Techincal Specification:
THREAD SERIES DESIGNATORUNF
NOMINAL THREAD DIAMETER0.375 INCHES
THREAD QUANTITY PER INCH24
THREAD CLASS2A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.470 INCHES MINIMUM AND
0.500 INCHES MAXIMUM
FASTENER LENGTH1.330 INCHES MINIMUM AND
1.370 INCHES MAXIMUM
MATERIALSTEEL COMP 302 OR
STEEL COMP 304 OR
STEEL COMP 305 OR
STEEL COMP 316 OR
STEEL COMP 384 OR
STEEL COMP XM-7 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A493 ASSN STD ALL MATERIAL RESPONSES OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 TY 1, 2, OR 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
MINIMUM TENSILE STRENGTH80000 POUNDS PER SQUARE INCH
HEAD STYLEFLAT CHAMFER
HEAD DIAMETER0.550 INCHES MINIMUM AND
0.563 INCHES MAXIMUM
HEAD HEIGHT0.368 INCHES MINIMUM AND
0.375 INCHES MAXIMUM
INTERNAL DRIVE STYLEHEXAGON
WIDTH ACROSS FLATS0.3125 INCHES MINIMUM AND
0.3160 INCHES MAXIMUM
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY1
FIRST DIAMETER FROM HEAD0.312 INCHES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER0.850 INCHES NOMINAL


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