5305-01-284-0838 SCREW,CAP,SOCKET HEAD Index 5306-01-284-0840 BOLT,SHEAR

National Stock Number:
5305-01-284-0839

Federal Supply Class:
5305

National Item Identification Number:
012840839

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:
70106-28012-10478286SIKORSKY AIRCRAFT CORPORATION


Techincal Specification:
THREAD SERIES DESIGNATORUNF
EXTENDED WASHER THICKNESS0.060 INCHES NOMINAL
EXTENDED WASHER DIAMETER0.675 INCHES MINIMUM AND 0.685 INCHES MAXIMUM
FASTENER LENGTH0.640 INCHES NOMINAL
HEAD HEIGHT0.300 INCHES NOMINAL
HEAD STYLEHEXAGON EXTENDED WASHER
HOLE CONFIGURATION STYLEHEXAGON CORNERS
HOLE DIAMETER0.050 INCHES MINIMUM AND 0.060 INCHES MAXIMUM
HOLE QUANTITY3
HOLE TYPEDRILLED
INTERNAL DRIVE STYLEW/O INTERNAL DRIVE
MATERIALSTEEL COMP 630 OVERALL
POINT LENGTH0.240 INCHES NOMINAL
POINT STYLECHAMFER DOG
POINT DIAMETER0.231 INCHES MINIMUM AND 0.232 INCHES MAXIMUM
PROPRIETARY CHARACTERISTICSPACS
NOMINAL THREAD DIAMETER0.312 INCHES
SPECIAL FEATURES32.0 SURFACE FINISH HEAD,BEARING SURFACE OF HEAD,POINT AND RADIUS BETWEEN POINT AND THREADS
WIDTH BETWEEN FLATS0.490 INCHES MINIMUM AND 0.502 INCHES MAXIMUM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONSS8435 CAGEC 78286 MFR REF SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.300 INCHES NOMINAL
THREAD QUANTITY PER INCH24


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