5305-01-210-3856, SCREW ASSEMBLY,PANEL

National Stock Number:
5305-01-210-3856

Federal Supply Class:
5305

National Item Identification Number:
012103856

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:

C7123-8C3	81755	LOCKHEED MARTIN CORPORATION
D7500-8-C-3	0HDW7	HUCK INTERNATIONAL, INC.
D7500-8-C-3	97928	HUCK INTL INC

Techincal Specification:

THREAD SERIES DESIGNATOR	UNC
NOMINAL THREAD DIAMETER	0.164 INCHES
THREAD QUANTITY PER INCH	32
THREAD CLASS	2A
THREAD DIRECTION	RIGHT-HAND
FASTENER LENGTH	0.505 INCHES MINIMUM AND
	0.545 INCHES MAXIMUM
MATERIAL	ALUMINUM ALLOY 6061 HEAD
	STEEL COMP 302 SPRING
	ALUMINUM ALLOY 6061 STAND-OFF
	STEEL COMP 303 FASTENER
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-A-225/8 FED SPEC SINGLE MATERIAL RESPONSE HEAD
	QQ-W-423 FED SPEC SINGLE MATERIAL RESPONSE SPRING
	QQ-A-225/8 FED SPEC SINGLE MATERIAL RESPONSE STAND-OFF
	ASTM A493 ASSN STD SINGLE MATERIAL RESPONSE FASTENER
SURFACE TREATMENT	ANODIZE HEAD
	PASSIVATE SPRING
	ANODIZE STAND-OFF
	PASSIVATE FASTENER
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE HEAD
	QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE SPRING
	MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE STAND-OFF
	QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE FASTENER
HEAD STYLE	KNURLED NO. 4
HEAD DIAMETER	0.420 INCHES NOMINAL
HEAD HEIGHT	0.290 INCHES NOMINAL
INTERNAL DRIVE STYLE	SLOT
MATERIAL ACCOMMODATED THICKNESS	0.126 INCHES MINIMUM AND
	0.187 INCHES MAXIMUM
SPECIAL FEATURES	STRAIGHT KNURL

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