5305-01-289-7827 SETSCREW Index 5305-01-289-7829 SETSCREW

National Stock Number:
5305-01-289-7828

Federal Supply Class:
5305

National Item Identification Number:
012897828

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:
1/4-20UNC-3A X 7/8 IN. LG80204AMERICAN NATIONAL STANDARDS INSTITUTE INCORPORATED
FF-S-20081348FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC


Techincal Specification:
FASTENER LENGTH0.875 INCHES NOMINAL
HEAD STYLEHEADLESS (SETSCREW)
INTERNAL DRIVE STYLEHEXAGON
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-281 FED SPEC ALL MATERIAL RESPONSES OVERALL
MATERIALNICKEL ALLOY 400 OR NICKEL ALLOY R-405 OVERALL
NOMINAL THREAD DIAMETER0.250 INCHES
NONDEFINITIVE SPEC/STD DATA1 TYPE AND 6 STYLE
POINT STYLEHALF DOG
WIDTH ACROSS FLATS0.125 INCHES NOMINAL
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD QUANTITY PER INCH20
THREAD SERIES DESIGNATORUNC


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