5306-00-146-7371, BOLT,EXTERNALLY RELIEVED BODY

National Stock Number:
5306-00-146-7371

Federal Supply Class:
5306

National Item Identification Number:
001467371

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:

6209

81601

NORFOLK NAVAL SHIPYARD

Techincal Specification:

DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	0.187 INCHES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER	1.062 INCHES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF THIRD DIAMETER	1.625 INCHES NOMINAL
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	3
FASTENER LENGTH	2.438 INCHES NOMINAL
FIRST DIAMETER FROM HEAD	0.430 INCHES MINIMUM AND 0.436 INCHES MAXIMUM
HARDNESS RATING	33.0 SHORE SCLEROSCOPE MINIMUM AND 38.0 ROCKWELL SUPERFICIAL 15-N MAXIMUM OVERALL
HEAD DIAMETER	0.687 INCHES NOMINAL
HEAD HEIGHT	0.250 INCHES NOMINAL
MATERIAL	STEEL COMP 3135 OVERALL
NOMINAL THREAD DIAMETER	0.438 INCHES
NONSTANDARD THREAD PITCH DIAMETER	+0.4034 TO 0.4050 INCHES
SECOND DIAMETER FROM HEAD	0.4315 INCHES MINIMUM AND 0.4379 INCHES MAXIMUM
SPECIAL FEATURES	AXIALLY DRILLED HOLE IN THREADED END 0.125 IN. DIA BY 0.187 IN. DEEP,SHANK FLATTED 0.750 IN. LG BY 0.417 IN. MIN 0.418 IN. W ACROSS FLAT
THIRD DIAMETER FROM HEAD	0.430 INCHES MINIMUM AND 0.432 INCHES MAXIMUM
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.812 INCHES NOMINAL
THREAD SERIES DESIGNATOR	UNF
THREAD QUANTITY PER INCH	20

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