5306-00-614-6525, BOLT,EXTERNALLY RELIEVED BODY

National Stock Number:
5306-00-614-6525

Federal Supply Class:
5306

National Item Identification Number:
006146525

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:

2057H128

0AHP5

CURTISS-WRIGHT CONTROLS, INC.

Techincal Specification:

DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF THIRD DIAMETER	0.800 INCHES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	0.360 INCHES MINIMUM AND 0.470 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FOURTH DIAMETER	0.880 INCHES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER	0.415 INCHES MINIMUM AND 0.535 INCHES MAXIMUM
DISTANCE FROM CENTERLINE TO FLAT	0.242 INCHES NOMINAL
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	4
FASTENER LENGTH	1.490 INCHES NOMINAL
FIRST DIAMETER FROM HEAD	0.3952 INCHES MINIMUM AND 0.3956 INCHES MAXIMUM
FOURTH DIAMETER FROM HEAD	0.300 INCHES NOMINAL
HARDNESS RATING	26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
HEAD HEIGHT	0.195 INCHES NOMINAL
HEAD DIAMETER	0.625 INCHES NOMINAL
HEAD STYLE	DEE
MATERIAL	STEEL COMP 8740 OVERALL
NOMINAL THREAD DIAMETER	0.375 INCHES
SECOND DIAMETER FROM HEAD	0.343 INCHES NOMINAL
SURFACE TREATMENT	CADMIUM OVERALL
THIRD DIAMETER FROM HEAD	0.3952 INCHES MINIMUM AND 0.3956 INCHES MAXIMUM
THREAD DIRECTION	RIGHT-HAND
THREAD CLASS	3A
THREAD LENGTH	0.610 INCHES NOMINAL
THREAD SERIES DESIGNATOR	UNF
THREAD QUANTITY PER INCH	24

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