5306-01-064-1556, BOLT,EXTERNALLY RELIEVED BODY

5306-01-064-1557 BOLT,EXTERNALLY RELIEVED BODY

National Stock Number:
5306-01-064-1556

Federal Supply Class:
5306

National Item Identification Number:
010641556

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:

01281-0316-0001	04274	ROSEMOUNT INC DBA FISHER ROSEMOUNT SERVICE AND SUPPORT
01281-0316-0001	59885	ROSEMOUNT AEROSPACE INC
5306PL1497647	9009H	INSPEKTORAT WSPARCIA SIL ZBROJNYCH

Techincal Specification:

DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	0.577 INCHES MINIMUM AND 0.607 INCHES MAXIMUM
FASTENER LENGTH	0.917 INCHES MINIMUM AND 0.947 INCHES MAXIMUM
FIRST DIAMETER FROM HEAD	0.183 INCHES MINIMUM AND 0.193 INCHES MAXIMUM
HEAD HEIGHT	0.125 INCHES MINIMUM AND 0.140 INCHES MAXIMUM
HEAD STYLE	HEXAGON
MATERIAL	STEEL CORROSION RESISTING OVERALL
NOMINAL THREAD DIAMETER	0.250 INCHES
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-416 TY 2 CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	CADMIUM OVERALL
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.340 INCHES NOMINAL
THREAD SERIES DESIGNATOR	UNIFIED NATIONAL JOINT FINE (UNJF)
THREAD QUANTITY PER INCH	28
WIDTH BETWEEN FLATS	0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM

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