5305-00-427-7028 SCREW,EXTERNALLY RELIEVED BODY Index 5305-00-427-7030 SCREW,EXTERNALLY RELIEVED BODY

National Stock Number:
5305-00-427-7029

Federal Supply Class:
5305

National Item Identification Number:
004277029

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:
370215-193B150RAYTHEON COMPANY
370215-1949956RAYTHEON COMPANY
370215-1954X10RAYTHEON COMPANY


Techincal Specification:
THREAD SERIES DESIGNATORUNC
NOMINAL THREAD DIAMETER0.138 INCHES
THREAD QUANTITY PER INCH32
THREAD CLASS2A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.230 INCHES MINIMUM AND
0.250 INCHES MAXIMUM
FASTENER LENGTH1.812 INCHES MINIMUM AND
1.875 INCHES MAXIMUM
MATERIALSTEEL COMP 302 OR
STEEL COMP 303 OR
STEEL COMP 304 OR
STEEL COMP 305 OR
STEEL COMP 316 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD ALL MATERIAL RESPONSES OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
MINIMUM TENSILE STRENGTH80000 POUNDS PER SQUARE INCH
HEAD STYLEPAN
HEAD DIAMETER0.256 INCHES MINIMUM AND
0.270 INCHES MAXIMUM
HEAD HEIGHT0.087 INCHES MINIMUM AND
0.097 INCHES MAXIMUM
INTERNAL DRIVE STYLECROSS RECESS TYPE 1
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY1
FIRST DIAMETER FROM HEAD0.085 INCHES MINIMUM AND
0.095 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER1.562 INCHES MINIMUM AND
1.645 INCHES MAXIMUM
THE MANUFACTURERS DATA
MANUFACTURERS CODE49956
DESIGN CONTROL REFERENCE370215-19


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