5305-00-778-7828, SCREW,EXTERNALLY RELIEVED BODY

National Stock Number:
5305-00-778-7828

Federal Supply Class:
5305

National Item Identification Number:
007787828

Description:
SCREW,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 undercut for thread relief). It is No. 0 (0.060 IN.) (1.5 mm) or larger, and is designed to be held or driven with either a wrench or inserted driver (excluding internal socket and multiple spline types) or both in sizes below No. 10 (0.190 IN.) (5 mm) and larger sizes must have a head designed for any type inserted driver (excluding internal socket and multiple spline types) but may also be designed for external wrenching. A locking feature may be incorporated in the design of the head or threads. See also BOLT, EXTERNALLY RELIEVED BODY and BOLT, INTERNAL WRENCHING.

Manufacturer Information:

394997	31949	BROOKS AUTOMATION, INC.
B2-2940	31949	BROOKS AUTOMATION, INC.

Techincal Specification:

DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	0.138 INCHES MINIMUM AND 0.178 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FOURTH DIAMETER	0.583 INCHES MINIMUM AND 0.599 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER	0.504 INCHES MINIMUM AND 0.520 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF THIRD DIAMETER	0.543 INCHES MINIMUM AND 0.559 INCHES MAXIMUM
DISTANCE FROM CENTERLINE TO FLAT	0.149 INCHES MAXIMUM
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	1
FASTENER LENGTH	2.082 INCHES MINIMUM AND 2.092 INCHES MAXIMUM
FIRST DIAMETER FROM HEAD	0.234 INCHES MINIMUM AND 0.238 INCHES MAXIMUM
FOURTH DIAMETER FROM HEAD	0.173 INCHES MINIMUM AND 0.181 INCHES MAXIMUM
HEAD DIAMETER	0.393 INCHES MAXIMUM
HEAD HEIGHT	0.205 INCHES MAXIMUM
HEAD STYLE	DEE CHAMFER
INTERNAL DRIVE STYLE	CROSS RECESS TYPE 1
MATERIAL DOCUMENT AND CLASSIFICATION	AISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	STEEL COMP E9310 OVERALL
NOMINAL THREAD DIAMETER	6.0 MILLIMETERS
NONSTANDARD THREAD PITCH DIAMETER	+0.2060 TO 0.2160 INCHES
PART NAME ASSIGNED BY CONTROLLING AGENCY	NAVY SPECIAL PROJECT
SECOND DIAMETER FROM HEAD	0.193 INCHES MINIMUM AND 0.201 INCHES MAXIMUM
THREAD DIRECTION	RIGHT-HAND
THIRD DIAMETER FROM HEAD	0.235 INCHES MINIMUM AND 0.236 INCHES MAXIMUM
THREAD LENGTH	0.428 INCHES MINIMUM AND 0.438 INCHES MAXIMUM
THREAD PITCH IN MILLIMETERS	25.4

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