5306-01-219-2955, BOLT,EXTERNALLY RELIEVED BODY

National Stock Number:
5306-01-219-2955

Federal Supply Class:
5306

National Item Identification Number:
012192955

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:

R74195

75160

DEERE & CO

Techincal Specification:

DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	1.320 INCHES NOMINAL
EXTENDED WASHER DIAMETER	0.714 INCHES NOMINAL
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	1
EXTENDED WASHER THICKNESS	0.120 INCHES MINIMUM AND 0.140 INCHES MAXIMUM
FASTENER LENGTH	2.500 INCHES NOMINAL
FIRST DIAMETER FROM HEAD	0.413 INCHES MINIMUM AND 0.423 INCHES MAXIMUM
HARDNESS RATING	36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL
HEAD HEIGHT	0.390 INCHES NOMINAL
HEAD STYLE	DOUBLE HEXAGON EXTENDED WASHER
MATERIAL DOCUMENT AND CLASSIFICATION	SAE ASSN STD ALL MATERIAL RESPONSES OVERALL
MATERIAL	STEEL COMP 8637 OR STEEL COMP 8640 OVERALL
NOMINAL THREAD DIAMETER	0.500 INCHES
WIDTH BETWEEN FLATS	0.611 INCHES MINIMUM AND 0.627 INCHES MAXIMUM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	JDT826,FSC-75160 MFR REF SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	PHOSPHATE ZINC OVERALL
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	1.180 INCHES NOMINAL
THREAD SERIES DESIGNATOR	UNF
THREAD QUANTITY PER INCH	20

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