NSN 5305-01-553-2388 18S0121AA, 18S01-2-1AA, 01-553-2388

Product Details | PANEL SCREW ASSEMBLY

5305-01-553-2388 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.

Part Alternates: 18S0121AA, 18S01-2-1AA, 5305-01-553-2388, 01-553-2388, 5305015532388, 015532388

Hardware and Abrasives | Screws

Supply Group (FSG)	NSN Assign.	NIIN	Item Name Code (INC)
53	11 JUL 2007	01-553-2388	33044 ( SCREW ASSEMBLY, PANEL )

Drawings & Photos | NSN 5305-01-553-2388

Part Number	Request Date	QTY	Origin
18S01-2-1AA	2012-11-310	352
18S0121AA	2010-02-39	300	Italy
18S0121AA	2009-09-254	300	Italy

Cross Reference | NSN 5305-01-553-2388

Part Number	Cage Code	Manufacturer
18S01-2-1AA	71286	ALCOA GLOBAL FASTENERS, INC. DBA ALCOA FASTENING SYSTEMS

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Related Products | NSN 5305-01-553-2388

5305-01-553-2859, 5305-01-553-3012, 5305-01-553-3014, 5305-01-553-3016, 5305-01-553-3020

Technical Data | NSN 5305-01-553-2388

Characteristic	Specifications
THREAD SERIES DESIGNATOR	UNF
NOMINAL THREAD DIAMETER	0.164 INCHES
THREAD QUANTITY PER INCH	36
THREAD CLASS	3B
THREAD DIRECTION	RIGHT-HAND
LEAD THREAD QUANTITY	FOUR
FASTENER LENGTH	0.590 INCHES NOMINAL
MATERIAL	STEEL COMP 8740 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION	MIL-S-6049 MIL SPEC ALL MATERIAL RESPONSES OVERALL
SURFACE TREATMENT	CADMIUM OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-416, TY2 CL 2 FED SPEC ALL TREATMENT RESPONSES OVERALL
HEAD STYLE	C50 FLAT COUNTERSUNK
HEAD DIAMETER	0.358 INCHES MAXIMUM
COUNTERSINK ANGLE	100.0 DEGREES NOMINAL
INTERNAL DRIVE STYLE	D5 HEXAGON
WIDTH ACROSS FLATS	0.157 INCHES MINIMUM AND 0.159 INCHES MAXIMUM
SPECIAL FEATURES	RECESS PLUG 0.130 - 0.150 INCHES DEEP; STUD DIA 0.247 - 0.249 INCHES; INTERIOR THREADS
III PART NAME ASSIGNED BY CONTROLLING AGENCY	STUD ASSEMBLY, FLUSH

Restrictions/Controls & Freight Information | NSN 5305-01-553-2388

Restrictions
Freight

Category	Code	Description
Hazardous Material Indicator Code	N	There is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials
Demilitarization Code:	A	Non-Munitions List Item/ Non-Strategic List Item - Demilitarization not required.
Electro-static Discharge Susceptible:	A	No known Electrostatic Discharge (ESD) or Electromagnetic Interference (EMI) sensitivity
Precious Metals Indicator Code:	A	Item does not contain precious metal
Criticality Code:	X	The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Automatic Data Processing Equipment:	0	Represents items with no ADP components. NOTE: Codes 1 through 6 are only to be used when the item is Automatic Data Processing Equipment (ADPE) in its entirety and is limited to the type meeting only one of the definitions for codes 1 through 6. (See code 9)

Category	Code	Description
No Freight Information