5306-00-685-6849, BOLT,EXTERNALLY RELIEVED BODY

5306-00-685-6848 BOLT,EXTERNALLY RELIEVED BODY

National Stock Number:
5306-00-685-6849

Federal Supply Class:
5306

National Item Identification Number:
006856849

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:

8521882

18876

U S ARMY AVIATION AND MISSILE COMMAND

Techincal Specification:

DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIFTH DIAMETER	4.615 INCHES MINIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	0.615 INCHES MINIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FOURTH DIAMETER	4.250 INCHES MINIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER	0.895 INCHES MINIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF THIRD DIAMETER	3.970 INCHES MINIMUM
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	5
FASTENER LENGTH	5.740 INCHES MINIMUM
FIFTH DIAMETER FROM HEAD	0.519 INCHES MINIMUM
FIRST DIAMETER FROM HEAD	0.519 INCHES MINIMUM
FOURTH DIAMETER FROM HEAD	0.459 INCHES MINIMUM
HEAD HEIGHT	0.510 INCHES MINIMUM
HEAD STYLE	HEXAGON
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-A-225/6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	ALUMINUM ALLOY 2024 OVERALL
NOMINAL THREAD DIAMETER	0.375 INCHES
SECOND DIAMETER FROM HEAD	0.459 INCHES MINIMUM
WIDTH BETWEEN FLATS	0.750 INCHES MINIMUM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	ANODIZE OVERALL
THIRD DIAMETER FROM HEAD	0.519 INCHES MINIMUM
THREAD CLASS	2A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	1.042 INCHES MINIMUM
THREAD QUANTITY PER INCH	24
THREAD SERIES DESIGNATOR	UNF

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