5305-01-342-1991 SCREW,ASSEMBLED WASHER Index 5305-01-342-1993 SETSCREW

National Stock Number:
5305-01-342-1992

Federal Supply Class:
5305

National Item Identification Number:
013421992

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:
AN565E820H3288044AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE
FF-S-20081348FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC


Techincal Specification:
FASTENER LENGTH1.900 INCHES MINIMUM AND 2.100 INCHES MAXIMUM
HARDNESS RATING45.0 ROCKWELL C MINIMUM AND 55.0 ROCKWELL C MAXIMUM OVERALL
HEAD STYLEHEADLESS (SETSCREW)
INTERNAL DRIVE STYLEHEXAGON
MATERIALSTEEL COMP 4037 OR STEEL COMP 4137 OR STEEL COMP 8740 OR STEEL COMP 8630H OVERALL
NOMINAL THREAD DIAMETER0.500 INCHES
POINT STYLEHALF DOG
WIDTH ACROSS FLATS0.250 INCHES MINIMUM AND 0.252 INCHES MAXIMUM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TYPE 2,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTCHROMATE AND CADMIUM OVERALL
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.861 INCHES MINIMUM AND 0.891 INCHES MAXIMUM
THREAD SERIES DESIGNATORUNF
THREAD QUANTITY PER INCH20


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