5305-01-112-3101 SCREW,EXTERNALLY RELIEVED BODY Index 5940-01-112-3105 TERMINAL,FEEDTHRU

National Stock Number:
5305-01-112-3104

Federal Supply Class:
5305

National Item Identification Number:
011123104

Description:
SETSCREW

Detail:
An externally threaded device whose threaded portion is of one nominal diameter with or without a head and having a cup, cone, or other type of machined point designed to prevent or restrict relative movement of parts and designed to be driven with either a wrench or inserted driver. A locking feature may be incorporated in the design of the head or threads.


Manufacturer Information:
318423210001NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER


Techincal Specification:
FASTENER LENGTH0.980 INCHES MINIMUM AND 1.020 INCHES MAXIMUM
HARDNESS RATING45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM OVERALL
HEAD STYLEHEADLESS (SETSCREW)
INTERNAL DRIVE STYLEHEXAGON
LOCKING FEATUREPATCH THREADS
MATERIALSTEEL OVERALL
NOMINAL THREAD DIAMETER0.250 INCHES
POINT STYLEOVAL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-Z-325 TY 2 CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTZINC AND CHROMATE OVERALL
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.980 INCHES MINIMUM AND 1.020 INCHES MAXIMUM
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
THREAD QUANTITY PER INCH20
WIDTH ACROSS FLATS0.125 INCHES MINIMUM AND 0.127 INCHES MAXIMUM


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