5306-00-695-4428, BOLT,EXTERNALLY RELIEVED BODY

5306-00-695-4448 BOLT,INTERNAL WRENCHING

National Stock Number:
5306-00-695-4428

Federal Supply Class:
5306

National Item Identification Number:
006954428

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:

4-80035	81205	THE BOEING COMPANY
4-80035	82918	THE BOEING COMPANY

Techincal Specification:

DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	0.220 INCHES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER	1.820 INCHES MINIMUM AND 1.880 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF THIRD DIAMETER	2.560 INCHES MINIMUM AND 2.620 INCHES MAXIMUM
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	3
FASTENER LENGTH	3.090 INCHES MINIMUM AND 3.190 INCHES MAXIMUM
FIRST DIAMETER FROM HEAD	0.246 INCHES MINIMUM AND 0.249 INCHES MAXIMUM
HEAD HEIGHT	0.140 INCHES MINIMUM AND 0.172 INCHES MAXIMUM
HEAD STYLE	DISHED HEXAGON
HOLE CONFIGURATION STYLE	HEXAGON FLATS
HOLE DIAMETER	0.046 INCHES MINIMUM AND 0.056 INCHES MAXIMUM
HOLE QUANTITY	1
HOLE TYPE	DRILLED
MATERIAL DOCUMENT AND CLASSIFICATION	MIL-S-6758 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-6050 FED SPEC 2ND MATERIAL RESPONSE OVERALL
MATERIAL	STEEL COMP 4130 OR STEEL COMP 8630 OVERALL
MINIMUM TENSILE STRENGTH	160000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER	0.250 INCHES
SECOND DIAMETER FROM HEAD	0.200 INCHES NOMINAL
WIDTH BETWEEN FLATS	0.428 INCHES MINIMUM AND 0.440 INCHES MAXIMUM
THIRD DIAMETER FROM HEAD	0.246 INCHES MINIMUM AND 0.249 INCHES MAXIMUM
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.410 INCHES MINIMUM AND 0.630 INCHES MAXIMUM
THREAD SERIES DESIGNATOR	UNF
THREAD QUANTITY PER INCH	28

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