5305-00-419-3378 SCREW,MACHINE Index 5305-00-419-3380 SCREW,CLOSE TOLERANCE

National Stock Number:
5305-00-419-3379

Federal Supply Class:
5305

National Item Identification Number:
004193379

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:
1753602-207187HONEYWELL INTERNATIONAL INC.


Techincal Specification:
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER0.027 INCHES MINIMUM AND 0.037 INCHES MAXIMUM
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY1
FASTENER LENGTH0.422 INCHES MINIMUM AND 0.454 INCHES MAXIMUM
FIRST DIAMETER FROM HEAD0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM
HEAD DIAMETER0.359 INCHES MINIMUM AND 0.391 INCHES MAXIMUM
HEAD HEIGHT0.422 INCHES MINIMUM AND 0.454 INCHES MAXIMUM
HEAD STYLEKNURLED NO. 1
INTERNAL DRIVE STYLESLOT
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 303 OVERALL
NOMINAL THREAD DIAMETER0.190 INCHES
SPECIAL FEATURESNON-STD POINT 0.125 IN. DIA,0.156 IN. LG,CHAMFER 90 DEG ANGLE
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-F-14072,FINISH E300 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
THREAD DIRECTIONRIGHT-HAND
THREAD CLASS2A
THREAD LENGTH0.250 INCHES MINIMUM
THREAD SERIES DESIGNATORUNF
THREAD QUANTITY PER INCH32


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