5306-01-365-1766, BOLT,EXTERNALLY RELIEVED BODY

5306-01-365-1765 BOLT,EXTERNALLY RELIEVED BODY

National Stock Number:
5306-01-365-1766

Federal Supply Class:
5306

National Item Identification Number:
013651766

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:

10177864	A486G	NIMIKKEISTOKESKUS NCB FINLAND
MBEU142267	30003	NAVAL AIR SYSTEMS COMMAND MANAGED ORIGINAL DESIGN ACTIVITY NOT MATERIAL/PARTS SUPPLIER
MBEU142267	U1604	MARTIN-BAKER AIRCRAFT COMPANY LIMITED

Techincal Specification:

DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	0.370 INCHES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER	0.120 INCHES NOMINAL
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	1
FASTENER LENGTH	0.760 INCHES NOMINAL
FIRST DIAMETER FROM HEAD	0.3740 INCHES MINIMUM AND 0.3745 INCHES MAXIMUM
HEAD HEIGHT	0.220 INCHES NOMINAL
HEAD STYLE	HEXAGON
HOLE CONFIGURATION STYLE	HEXAGON CORNERS
HOLE DIAMETER	0.059 INCHES NOMINAL
HOLE TYPE	DRILLED
HOLE QUANTITY	3
MATERIAL DOCUMENT AND CLASSIFICATION	MIL-S-6758 COND F MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	STEEL COMP 4130 OVERALL
MINIMUM TENSILE STRENGTH	128000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER	0.312 INCHES
SECOND DIAMETER FROM HEAD	0.246 INCHES MINIMUM AND 0.250 INCHES MAXIMUM
WIDTH BETWEEN FLATS	0.554 INCHES MINIMUM AND 0.562 INCHES MAXIMUM
THREAD CLASS	2A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.024 INCHES NOMINAL
THREAD SERIES DESIGNATOR	UNF
THREAD QUANTITY PER INCH	24

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