5306-00-924-1577, BOLT,EXTERNALLY RELIEVED BODY

National Stock Number:
5306-00-924-1577

Federal Supply Class:
5306

National Item Identification Number:
009241577

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:

6-40619-1	0JRC1	NORTHROP GRUMMAN TECHNICAL SERVICES, INC.
6-40619-1	76823	NORTHROP GRUMMAN SYSTEMS CORPORATION

Techincal Specification:

DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	0.125 INCHES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER	2.433 INCHES MINIMUM AND 2.438 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF THIRD DIAMETER	2.533 INCHES MINIMUM AND 2.538 INCHES MAXIMUM
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	3
FASTENER LENGTH	2.968 INCHES NOMINAL
FIRST DIAMETER FROM HEAD	0.605 INCHES MINIMUM AND 0.615 INCHES MAXIMUM
HEAD DIAMETER	1.000 INCHES NOMINAL
HEAD HEIGHT	0.312 INCHES NOMINAL
HEAD STYLE	ROUND W/WRENCH FLATS CHAMFERED
MATERIAL DOCUMENT AND CLASSIFICATION	MIL-S-7108 COMP 4330 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	STEEL OVERALL
MINIMUM TENSILE STRENGTH	220000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER	0.500 INCHES
SECOND DIAMETER FROM HEAD	0.624 INCHES MINIMUM AND 0.625 INCHES MAXIMUM
WIDTH BETWEEN FLATS	0.937 INCHES NOMINAL
SURFACE TREATMENT	CHROMIUM OVERALL
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THIRD DIAMETER FROM HEAD	0.417 INCHES MINIMUM AND 0.427 INCHES MAXIMUM
THREAD LENGTH	0.430 INCHES MINIMUM AND 0.435 INCHES MAXIMUM
THREAD SERIES DESIGNATOR	UNF
THREAD QUANTITY PER INCH	20

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