5310-00-514-7521 NUT,SELF-LOCKING,PLATE Index 5306-00-514-7526 BOLT,SQUARE NECK

National Stock Number:
5306-00-514-7523

Federal Supply Class:
5306

National Item Identification Number:
005147523

Description:
BOLT,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 undercuts for thread relief). It is No. 10 (0.190 IN.) (5 mm) or larger in size and has a head which is not designed to be held or driven with an inserted driver or designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. Excludes BOLT, INTERNAL WRENCHING and THUMBSCREW. See also SCREW, EXTERNALLY RELIEVED BODY.


Manufacturer Information:
733124PC310001NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER


Techincal Specification:
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER0.125 INCHES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER1.345 INCHES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF THIRD DIAMETER1.500 INCHES NOMINAL
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY3
FIRST DIAMETER FROM HEAD0.688 INCHES NOMINAL
HARDNESS RATING45.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL
HEAD HEIGHT0.375 INCHES NOMINAL
HEAD STYLEHEXAGON
NOMINAL THREAD DIAMETER0.625 INCHES
PART NAME ASSIGNED BY CONTROLLING AGENCYNAVY SPECIAL PROJECT
SECOND DIAMETER FROM HEAD0.749 INCHES MINIMUM AND 0.750 INCHES MAXIMUM
SPECIAL FEATURESTHE END OF SECOND SHOULDER IS CHAMFERED 0.030 IN. AT 45.0 DEG
WIDTH BETWEEN FLATS1.000 INCHES NOMINAL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-C-16232,TY 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THIRD DIAMETER FROM HEAD0.562 INCHES NOMINAL
THREAD LENGTH0.750 INCHES MINIMUM
THREAD QUANTITY PER INCH18
THREAD SERIES DESIGNATORUNF


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