5306-00-870-3015, BOLT,EXTERNALLY RELIEVED BODY

5306-00-870-3010 BOLT,EXTERNALLY RELIEVED BODY

National Stock Number:
5306-00-870-3015

Federal Supply Class:
5306

National Item Identification Number:
008703015

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:

686308	K0680	ROLLS-ROYCE AIRLINES
6863081	73342	ALLISON TRANSMISSION INC
BLT2124	K0680	ROLLS-ROYCE AIRLINES

Techincal Specification:

DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER	1.475 INCHES MINIMUM AND 1.515 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF THIRD DIAMETER	1.715 INCHES MINIMUM AND 1.755 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	0.190 INCHES MINIMUM AND 0.210 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FOURTH DIAMETER	2.940 INCHES MINIMUM AND 3.000 INCHES MAXIMUM
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	4
FASTENER LENGTH	3.640 INCHES MINIMUM AND 3.660 INCHES MAXIMUM
FIRST DIAMETER FROM HEAD	0.244 INCHES MINIMUM AND 0.249 INCHES MAXIMUM
FOURTH DIAMETER FROM HEAD	0.190 INCHES MINIMUM AND 0.195 INCHES MAXIMUM
HARDNESS RATING	36.0 ROCKWELL C MINIMUM AND 41.0 ROCKWELL C MAXIMUM OVERALL
HEAD HEIGHT	0.146 INCHES MINIMUM AND 0.166 INCHES MAXIMUM
HEAD STYLE	HEXAGON
MATERIAL	STEEL CORROSION RESISTING OVERALL
NOMINAL THREAD DIAMETER	0.250 INCHES
SECOND DIAMETER FROM HEAD	0.190 INCHES MINIMUM AND 0.195 INCHES MAXIMUM
THREAD QUANTITY PER INCH	28
THREAD SERIES DESIGNATOR	UNF
WIDTH BETWEEN FLATS	0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM
THREAD DIRECTION	RIGHT-HAND
THIRD DIAMETER FROM HEAD	0.249 INCHES MINIMUM AND 0.250 INCHES MAXIMUM
THREAD CLASS	1A
THREAD LENGTH	0.660 INCHES MINIMUM

Click here to Register for Free 30-day Trial