5306-01-390-8390, BOLT,EXTERNALLY RELIEVED BODY

National Stock Number:
5306-01-390-8390

Federal Supply Class:
5306

National Item Identification Number:
013908390

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:

3113AS1261-1	30003	NAVAL AIR SYSTEMS COMMAND MANAGED ORIGINAL DESIGN ACTIVITY NOT MATERIAL/PARTS SUPPLIER
3113AS1261-1	66841	PRECI-MANUFACTURING, INCORPORATED

Techincal Specification:

DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER	2.062 INCHES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	0.060 INCHES NOMINAL
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	2
FASTENER LENGTH	2.062 INCHES NOMINAL
FIRST DIAMETER FROM HEAD	0.380 INCHES NOMINAL
HEAD HEIGHT	0.188 INCHES NOMINAL
HEAD STYLE	HEXAGON
HOLE CONFIGURATION STYLE	HEXAGON FLATS
HOLE DIAMETER	0.062 INCHES NOMINAL
HOLE QUANTITY	1
HOLE TYPE	DRILLED
MATERIAL DOCUMENT AND CLASSIFICATION	ASTM A276 COND A ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	STEEL COMP 440C OVERALL
NOMINAL THREAD DIAMETER	0.500 INCHES
SECOND DIAMETER FROM HEAD	0.2492 INCHES MINIMUM AND 0.2496 INCHES MAXIMUM
SPECIAL FEATURES	HEAD AND THREADS FREE OF CHROMIUM PLATING
WIDTH BETWEEN FLATS	0.750 INCHES NOMINAL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-C-320 CL 2 FED SPEC 1ST TREATMENT RESPONSE AND QQ-N-290 FED SPEC 2ND TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	CHROMIUM AND NICKEL OVERALL
THREAD CLASS	1A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.279 INCHES MINIMUM AND 0.299 INCHES MAXIMUM
THREAD QUANTITY PER INCH	20
THREAD SERIES DESIGNATOR	UNF

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