2840-00-798-7814 SUPPORT,SEAL,AIRCRAFT GAS TURBIN Index 2840-00-798-7820 RING,SPACER

National Stock Number:
5305-00-798-7818

Federal Supply Class:
5305

National Item Identification Number:
007987818

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:
105B3019P107482GENERAL ELECTRIC COMPANY
105B3019P124446GENERAL ELECTRIC COMPANY


Techincal Specification:
EXTENDED WASHER DIAMETER0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM
EXTENDED WASHER THICKNESS0.050 INCHES MINIMUM AND 0.060 INCHES MAXIMUM
FASTENER LENGTH0.800 INCHES MINIMUM AND 0.840 INCHES MAXIMUM
HEAD HEIGHT0.270 INCHES MINIMUM AND 0.280 INCHES MAXIMUM
INTERNAL DRIVE STYLEW/O INTERNAL DRIVE
MATERIALALUMINUM ALLOY 6061 OVERALL
NOMINAL THREAD DIAMETER0.250 INCHES
POINT DIAMETER0.160 INCHES MINIMUM AND 0.180 INCHES MAXIMUM
POINT LENGTH0.200 INCHES MINIMUM AND 0.220 INCHES MAXIMUM
POINT STYLEFLAT
POINT CHAMFER ANGLE90.0 DEGREES NOMINAL
WIDTH BETWEEN FLATS0.367 INCHES MINIMUM AND 0.376 INCHES MAXIMUM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONAMS 2485 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTOXIDE OVERALL
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.400 INCHES MINIMUM AND 0.430 INCHES MAXIMUM
THREAD QUANTITY PER INCH28
THREAD SERIES DESIGNATORUNF


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