5963-01-217-7670 TOPCOVER WITH SILKS Index 5841-01-217-7672 END PLATE,FAN

National Stock Number:
5305-01-217-7671

Federal Supply Class:
5305

National Item Identification Number:
012177671

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:
SC000131073CONTROL SYSTEMS RESEARCH INC


Techincal Specification:
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER6.568 INCHES MINIMUM AND 6.578 INCHES MAXIMUM
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY1
FASTENER LENGTH7.397 INCHES MINIMUM AND 7.407 INCHES MAXIMUM
FIRST DIAMETER FROM HEAD0.183 INCHES MINIMUM AND 0.193 INCHES MAXIMUM
HEAD DIAMETER0.370 INCHES MINIMUM AND 0.380 INCHES MAXIMUM
HEAD HEIGHT0.370 INCHES MINIMUM AND 0.380 INCHES MAXIMUM
HEAD STYLEKNURLED NO. 1
INTERNAL DRIVE STYLESLOT
MATERIAL DOCUMENT AND CLASSIFICATIONAISI NATIONAL SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 303 OVERALL
NOMINAL THREAD DIAMETER6.0 MILLIMETERS
SPECIAL FEATURESSCREWPOINT U.S. STD CONE 90.0 DEGANGLE
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-E-16400 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.824 INCHES MINIMUM AND 0.834 INCHES MAXIMUM
THREAD PITCH IN MILLIMETERS1.0
THREAD SERIES DESIGNATORISO S


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