4820-01-539-0121 VALVE,BUTTERFLY Index 5340-01-539-0123 FASTENER,PAWL

National Stock Number:
5305-01-539-0122

Federal Supply Class:
5305

National Item Identification Number:
015390122

Description:
SCREW ASSEMBLY,PANEL

Detail:
A HEADED, THREADED FASTENING DEVICE OVER WHICH MAY BE ASSEMBLED; (1) A STAND-OFF; (2) A FLANGED BUSHING WITH WASHER(S) AND/OR A SHOULDERED BUSHING WITHOUT A FLANGE, OR IT MAY HAVE AN INTERNALLY THREADED SLEEVE THAT IS AN INTEGRAL PART OF THE SCREW; A WASHER AND AN EXTERNALLY THREAD SELF-LOCKING BUSHING THAT IS DRIVEN BY AN INSERTED DRIVER. ATTACHED TO PANEL BY THREADED BUSHING OR BY FLARING END OF STAND-OFF, OR BUSHING. USED IN CONJUNCTION WITH A SPEED NUT, NUT PLATE, OR DRIVEN INTO A THREADED HOLE IN THE ITEM THAT THE PANEL IS FASTENED TO. MAY BE SPRING LOADED.


Manufacturer Information:
6393680 FIND 18153711NAVAL SEA SYSTEMS COMMAND
RI3569-108844MARATHONNORCO AEROSPACE, INC.


Techincal Specification:
FASTENER LENGTH3.500 INCHES NOMINAL
FEATURES PROVIDEDFLAT WASHER AND HEX NUT
HEAD HEIGHT0.130 INCHES NOMINAL
HEAD DIAMETER2.500 INCHES NOMINAL
HEAD STYLEFILLISTER
INTERNAL DRIVE STYLEW/O INTERNAL DRIVE
MATERIAL ACCOMMODATED THICKNESS0.020 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONASTM B348 ASSN STD SINGLE MATERIAL RESPONSE FASTENER
MATERIALTITANIUM ALLOY FASTENER
PART NAME ASSIGNED BY CONTROLLING AGENCYRECEIVER INTERLOCK,TRIPOD
PROPRIETARY CHARACTERISTICSPACS
NOMINAL THREAD DIAMETER1.250 INCHES
SPECIAL FEATURESSMATERIAL FOR THE WASHER AND NUT ARE THE SAME AS THE FASTENER; THERE IS A HEXAGON SHAPE TIP, 0.940 INCH ACROSS FLATS, SUPLLIED ON THIS ITEM; THERE IS A 0.505 INCH DIA C'SUNK HOLE IN THE TOP OF HEAD FOR A SPRING LOADED SEAL PLUG
SURFACE TREATMENTANODIZE FASTENER
THREAD CLASS2A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH2.190 INCHES NOMINAL
THREAD QUANTITY PER INCH7
THREAD SERIES DESIGNATORUNC


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