5306-00-440-2122, BOLT,EXTERNALLY RELIEVED BODY

National Stock Number:
5306-00-440-2122

Federal Supply Class:
5306

National Item Identification Number:
004402122

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:

105B3019P3	07482	GENERAL ELECTRIC COMPANY
105B3019P3	24446	GENERAL ELECTRIC COMPANY

Techincal Specification:

THREAD SERIES DESIGNATOR	UNF
NOMINAL THREAD DIAMETER	0.250 INCHES
THREAD QUANTITY PER INCH	28
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.400 INCHES MINIMUM AND
	0.430 INCHES MAXIMUM
FASTENER LENGTH	0.990 INCHES MINIMUM AND
	1.030 INCHES MAXIMUM
MATERIAL	STEEL OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION	C50T22,FSCM 96570 MFR REF SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENT	OXIDE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	AMS 2485 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
HEAD STYLE	DOUBLE HEXAGON W/HOLE
HEAD HEIGHT	0.270 INCHES MINIMUM AND
	0.280 INCHES MAXIMUM
WIDTH BETWEEN FLATS	0.367 INCHES MINIMUM AND
	0.376 INCHES MAXIMUM
EXTENDED WASHER DIAMETER	0.490 INCHES MINIMUM AND
	0.510 INCHES MAXIMUM
EXTENDED WASHER THICKNESS	0.050 INCHES MINIMUM AND
	0.060 INCHES MAXIMUM
HOLE CONFIGURATION STYLE	ROUND
HOLE TYPE	DRILLED
HOLE QUANTITY	1
HOLE DIAMETER	0.206 INCHES NOMINAL
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER	0.100 INCHES NOMINAL FIRST HOLE
SHANK UNTHREADED HOLE DIAMETER	0.063 INCHES NOMINAL FIRST HOLE
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	1
FIRST DIAMETER FROM HEAD	0.200 INCHES MINIMUM AND
	0.205 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	0.380 INCHES MINIMUM AND
	0.390 INCHES MAXIMUM
THE MANUFACTURERS DATA
MANUFACTURERS CODE	07482
DESIGN CONTROL REFERENCE	105B3019P3

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