5305-00-675-2521 SCREW,EXTERNALLY RELIEVED BODY Index 5305-00-675-2523 SCREW,EXTERNALLY RELIEVED BODY

National Stock Number:
5305-00-675-2522

Federal Supply Class:
5305

National Item Identification Number:
006752522

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:
542-5627-00213499ROCKWELL COLLINS, INC.
542-5627-00298738HERLEY CHICAGO DBA STEWART WARNER ELECTRONICS


Techincal Specification:
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER0.125 INCHES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FOURTH DIAMETER4.187 INCHES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER3.775 INCHES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF THIRD DIAMETER3.812 INCHES NOMINAL
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY4
FASTENER LENGTH4.463 INCHES MINIMUM AND 4.468 INCHES MAXIMUM
FIRST DIAMETER FROM HEAD0.234 INCHES NOMINAL
FOURTH DIAMETER FROM HEAD0.105 INCHES NOMINAL
HEAD DIAMETER0.234 INCHES NOMINAL
HEAD HEIGHT0.188 INCHES MINIMUM AND 0.193 INCHES MAXIMUM
HEAD STYLEFLAT CHAMFER
INTERNAL DRIVE STYLESLOT
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 303 OVERALL
NOMINAL THREAD DIAMETER0.164 INCHES
SECOND DIAMETER FROM HEAD0.141 INCHES NOMINAL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION580-0025-00 FSCM 13499 MFR REF SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
THIRD DIAMETER FROM HEAD0.234 INCHES NOMINAL
THREAD CLASS2A
THREAD LENGTH0.219 INCHES MINIMUM
THREAD DIRECTIONRIGHT-HAND
THREAD SERIES DESIGNATORUNC
THREAD QUANTITY PER INCH32


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