5305-00-253-4870 SETSCREW Index 5305-00-253-4872 SETSCREW

National Stock Number:
5305-00-253-4871

Federal Supply Class:
5305

National Item Identification Number:
002534871

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:
MS51017-296906MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M


Techincal Specification:
FASTENER LENGTH0.188 INCHES NOMINAL
HARDNESS RATING46.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM OVERALL
HEAD STYLEHEADLESS (SETSCREW)
INTERNAL DRIVE STYLESQUARE
MATERIALSTEEL OVERALL
NOMINAL THREAD DIAMETER0.086 INCHES
NONDEFINITIVE SPEC/STD DATA3 TYPE AND 4 STYLE
POINT STYLECUP
WIDTH ACROSS FLATS0.035 INCHES MINIMUM AND 0.036 INCHES MAXIMUM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TYPE 2,CLASS 3 FED SPEC 1ST TREATMENT RESPONSE AND QQ-Z-325,TYPE 2,CLASS 3 FED SPEC 2ND TREATMENT RESPONSE OVERALL
SURFACE TREATMENTCADMIUM AND ZINC AND CHROMATE OVERALL
THREAD LENGTH0.188 INCHES MAXIMUM
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD QUANTITY PER INCH56
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)


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