5306-01-087-1078, BOLT,EXTERNALLY RELIEVED BODY

National Stock Number:
5306-01-087-1078

Federal Supply Class:
5306

National Item Identification Number:
010871078

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:

13222E0421

97403

CECOM LR CENTER

Techincal Specification:

THREAD SERIES DESIGNATOR	UNF
NOMINAL THREAD DIAMETER	0.500 INCHES
THREAD QUANTITY PER INCH	20
THREAD CLASS	2A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	1.340 INCHES NOMINAL
FASTENER LENGTH	4.380 INCHES NOMINAL
MATERIAL	STEEL OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION	ASTM-A322 ASSN STD SINGLE MATERIAL RESPONSE AND
	ASTM-A331 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENT	CADMIUM OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-416,TYPE 2,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
HARDNESS RATING	32.0 ROCKWELL C MINIMUM AND
	36.0 ROCKWELL C MAXIMUM OVERALL
HEAD STYLE	HEXAGON
HEAD HEIGHT	0.620 INCHES NOMINAL
WIDTH BETWEEN FLATS	1.250 INCHES NOMINAL
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	3
FIRST DIAMETER FROM HEAD	0.860 INCHES MINIMUM AND
	0.870 INCHES MAXIMUM
SECOND DIAMETER FROM HEAD	0.610 INCHES MINIMUM AND
	0.620 INCHES MAXIMUM
THIRD DIAMETER FROM HEAD	0.400 INCHES MINIMUM AND
	0.420 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	1.880 INCHES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER	2.880 INCHES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF THIRD DIAMETER	4.040 INCHES NOMINAL

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