5306-01-371-0873 BOLT,MACHINE Index 5305-01-371-0875 SCREW,EXTERNALLY RELIEVED BODY

National Stock Number:
5305-01-371-0874

Federal Supply Class:
5305

National Item Identification Number:
013710874

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:
A320A923-10288818KEARFOTT CORPORATION


Techincal Specification:
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY1
FASTENER LENGTH2.070 INCHES MINIMUM AND 2.090 INCHES MAXIMUM
FIRST DIAMETER FROM HEAD0.145 INCHES MINIMUM AND 0.150 INCHES MAXIMUM
HEAD DIAMETER0.318 INCHES MINIMUM AND 0.328 INCHES MAXIMUM
HEAD HEIGHT0.230 INCHES MINIMUM AND 0.240 INCHES MAXIMUM
HEAD STYLEBEVEL-CONICAL
INTERNAL DRIVE STYLEHEXAGON
MATERIAL DOCUMENT AND CLASSIFICATIONAMS5643 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 630 OVERALL
NOMINAL THREAD DIAMETER0.190 INCHES
WIDTH ACROSS FLATS0.156 INCHES MINIMUM AND 0.158 INCHES MAXIMUM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
THREAD CLASS2A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.292 INCHES MINIMUM AND 0.332 INCHES MAXIMUM
THREAD SERIES DESIGNATORUNF
THREAD QUANTITY PER INCH32


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