5305-01-197-1345, SCREW ASSEMBLY,PANEL

5330-01-197-1344 SEAL,NONMETALLIC SPECIAL SHAPED

National Stock Number:
5305-01-197-1345

Federal Supply Class:
5305

National Item Identification Number:
011971345

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:

C7123-12B5	81755	LOCKHEED MARTIN CORPORATION
D7500-12-B-5	0HDW7	HUCK INTERNATIONAL, INC.
D7500-12-B-5	97928	HUCK INTL INC

Techincal Specification:

THREAD SERIES DESIGNATOR	UNF
NOMINAL THREAD DIAMETER	0.250 INCHES
THREAD QUANTITY PER INCH	28
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
FASTENER LENGTH	0.765 INCHES MINIMUM AND
	0.795 INCHES MAXIMUM
MATERIAL	ALUMINUM ALLOY 6061 HEAD
	STEEL COMP 302 SPRING
	ALUMINUM ALLOY 6061 STAND-OFF
	IRON ALLOY 660 FASTENER
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-A-225/8 FED SPEC SINGLE MATERIAL RESPONSE HEAD
	ASTM A580 ASSN STD SINGLE MATERIAL RESPONSE OR
	ASTM A313 ASSN STD SINGLE MATERIAL RESPONSE SPRING
	QQ-A-225/8 FED SPEC SINGLE MATERIAL RESPONSE STAND-OFF
	AMS 5737 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 TY 1 CL 1 MIL SPEC SINGLE TREATMENT RESPONSE HEAD
	QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE SPRING
	MIL-A-8625 TY 1 CL 1 MIL SPEC SINGLE TREATMENT RESPONSE STAND-OFF
	QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE FASTENER
HEAD STYLE	FLAT CHAMFER
HEAD DIAMETER	0.516 INCHES MINIMUM AND
	0.546 INCHES MAXIMUM
HEAD HEIGHT	0.305 INCHES MINIMUM AND
	0.335 INCHES MAXIMUM
INTERNAL DRIVE STYLE	SLOT
MATERIAL ACCOMMODATED THICKNESS	0.063 INCHES MINIMUM AND
	0.125 INCHES MAXIMUM

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