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National Stock Number:
5305-01-482-9232
Federal Supply Class:
5305
National Item Identification Number:
014829232
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.
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Manufacturer Information:
| 3M1204-4-22HS | 76301 | THE BOEING COMPANY | | CA21325-4-22HS | 29372 | HOWMET GLOBAL FASTENING SYSTEMS INC. |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNJF | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | THREAD QUANTITY PER INCH | 28 | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.460 INCHES NOMINAL | | FASTENER LENGTH | 1.830 INCHES NOMINAL | | MATERIAL | STEEL COMP 631 SPRING | | IRON ALLOY 660 FASTENER | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5678 ASSN STD SINGLE MATERIAL RESPONSE SPRING | | AMS 5731 ASSN STD SINGLE MATERIAL RESPONSE OR | | AMS 5734 ASSN STD SINGLE MATERIAL RESPONSE FASTENER | | HEAD STYLE | HEXAGON | | HEAD HEIGHT | 0.125 INCHES MINIMUM AND | | 0.140 INCHES MAXIMUM | | WIDTH BETWEEN FLATS | 0.429 INCHES MINIMUM AND | | 0.439 INCHES MAXIMUM | | INTERNAL DRIVE STYLE | HEXAGON | | WIDTH ACROSS FLATS | 0.141 INCHES MINIMUM AND | | 0.143 INCHES MAXIMUM | | MATERIAL ACCOMMODATED THICKNESS | 0.080 INCHES MINIMUM AND | | 1.370 INCHES MAXIMUM | | SPECIAL FEATURES | GROOVED TO ACCOMODATE RETAINING RING |
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