5305-01-077-0176 SCREW ASSEMBLY,PANEL Index 5940-01-077-0178 TERMINAL,LUG

National Stock Number:
5305-01-077-0177

Federal Supply Class:
5305

National Item Identification Number:
010770177

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:
414608-596214RAYTHEON COMPANY
53-14-511-2494222SOUTHCO INC


Techincal Specification:
THREAD SERIES DESIGNATORUNF
NOMINAL THREAD DIAMETER0.250 INCHES
THREAD QUANTITY PER INCH28
THREAD CLASS2A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.359 INCHES MINIMUM AND
0.391 INCHES MAXIMUM
FASTENER LENGTH1.044 INCHES MINIMUM AND
1.076 INCHES MAXIMUM
MATERIALSTEEL COMP 302 SPRING
STEEL COMP 305 STAND-OFF
STEEL COMP 303 FASTENER
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-W-423 FED SPEC SINGLE MATERIAL RESPONSE SPRING
AMS 5514 ASSN STD SINGLE MATERIAL RESPONSE STAND-OFF
ASTM A582 ASSN STD SINGLE MATERIAL RESPONSE FASTENER
SURFACE TREATMENTPASSIVATE SPRING
PASSIVATE STAND-OFF
PASSIVATE FASTENER
HEAD STYLEKNURLED NO. 4
HEAD DIAMETER0.544 INCHES MINIMUM AND
0.576 INCHES MAXIMUM
HEAD HEIGHT0.234 INCHES MINIMUM AND
0.266 INCHES MAXIMUM
MATERIAL ACCOMMODATED THICKNESS0.094 INCHES MINIMUM AND
0.141 INCHES MAXIMUM


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