5305-00-754-2044 SCREW,CAP,SOCKET HEAD Index 5305-00-754-2048 SCREW,EXTERNALLY RELIEVED BODY

National Stock Number:
5305-00-754-2047

Federal Supply Class:
5305

National Item Identification Number:
007542047

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:
908599718876U S ARMY AVIATION AND MISSILE COMMAND


Techincal Specification:
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER0.375 INCHES MINIMUM AND 0.385 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER0.297 INCHES MINIMUM AND 0.307 INCHES MAXIMUM
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY1
FASTENER LENGTH0.797 INCHES MINIMUM AND 0.807 INCHES MAXIMUM
FIRST DIAMETER FROM HEAD0.243 INCHES MINIMUM AND 0.245 INCHES MAXIMUM
HEAD HEIGHT0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM
HEAD DIAMETER0.498 INCHES MINIMUM AND 0.502 INCHES MAXIMUM
HEAD STYLEFLAT CHAMFER
NOMINAL THREAD DIAMETER0.164 INCHES
INTERNAL DRIVE STYLESLOT
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 303 OVERALL
SECOND DIAMETER FROM HEAD0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM
SURFACE TREATMENTPASSIVATE OVERALL
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.406 INCHES MINIMUM AND 0.438 INCHES MAXIMUM
THREAD QUANTITY PER INCH32
THREAD SERIES DESIGNATORUNC


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