5306-00-880-2602, BOLT,EXTERNALLY RELIEVED BODY

5306-00-880-2603 BOLT,INTERNALLY RELIEVED BODY

National Stock Number:
5306-00-880-2602

Federal Supply Class:
5306

National Item Identification Number:
008802602

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:

114L2513-1	77272	THE BOEING COMPANY
114L2513-1	81205	THE BOEING COMPANY
114L2513-1	A0126	LEONARDO SPA HELICOPTERS DIVISION -PRODUCTION SITE

Techincal Specification:

DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER	2.490 INCHES MINIMUM AND 2.510 INCHES MAXIMUM FIRST HOLE
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	1.890 INCHES MINIMUM AND 1.910 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER	1.980 INCHES NOMINAL
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	2
FASTENER LENGTH	2.680 INCHES MINIMUM AND 2.700 INCHES MAXIMUM
FIRST DIAMETER FROM HEAD	0.7490 INCHES MINIMUM AND 0.7493 INCHES MAXIMUM
HEAD DIAMETER	1.490 INCHES MINIMUM AND 1.510 INCHES MAXIMUM
HEAD HEIGHT	0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM
HEAD STYLE	ROUND W/WRENCH FLATS
MATERIAL DOCUMENT AND CLASSIFICATION	MIL-S-5000 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	STEEL COMP E4340 OVERALL
NOMINAL THREAD DIAMETER	0.625 INCHES
SECOND DIAMETER FROM HEAD	0.530 INCHES MINIMUM AND 0.550 INCHES MAXIMUM
SHANK UNTHREADED HOLE DIAMETER	0.136 INCHES NOMINAL FIRST HOLE
WIDTH BETWEEN FLATS	1.280 INCHES MINIMUM AND 1.290 INCHES MAXIMUM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-416,CL 2 FED SPEC ALL TREATMENT RESPONSES OVERALL
SURFACE TREATMENT	CADMIUM AND CHROMATE OVERALL
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.670 INCHES MINIMUM AND 0.720 INCHES MAXIMUM
THREAD SERIES DESIGNATOR	UNF
THREAD QUANTITY PER INCH	18

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