5120-00-143-2025 INSERTER,SEAL Index 5306-00-143-2028 BOLT,SHEAR

National Stock Number:
5305-00-143-2026

Federal Supply Class:
5305

National Item Identification Number:
001432026

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:
407239-396214RAYTHEON COMPANY


Techincal Specification:
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER0.468 INCHES MINIMUM AND 0.532 INCHES MAXIMUM
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY1
FASTENER LENGTH0.734 INCHES MINIMUM AND 0.766 INCHES MAXIMUM
FIRST DIAMETER FROM HEAD0.090 INCHES MINIMUM AND 0.093 INCHES MAXIMUM
HEAD DIAMETER0.256 INCHES MINIMUM AND 0.270 INCHES MAXIMUM
HEAD HEIGHT0.087 INCHES MINIMUM AND 0.097 INCHES MAXIMUM
HEAD STYLEPAN NO. 2
INTERNAL DRIVE STYLECROSS RECESS TYPE 1
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD ALL MATERIAL RESPONSES OVERALL
MATERIALSTEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 304 OR STEEL COMP 305 OR STEEL COMP 316 OVERALL
NOMINAL THREAD DIAMETER0.138 INCHES
SURFACE TREATMENTPASSIVATE OVERALL
THREAD CLASS2A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.234 INCHES MINIMUM AND 0.266 INCHES MAXIMUM
THREAD QUANTITY PER INCH32
THREAD SERIES DESIGNATORUNC


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