NSN 5305-00-285-5278

Part Details | ASSEMBLED WASHER SCREW

5305-00-285-5278 A SCREW, (as modified) to which has been assembled one or more nonremovable washer(s).

Alternate Parts: 454789, 5305-00-285-5278, 00-285-5278, 5305002855278, 002855278

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53JAN 01, 196300-285-527806660 ( SCREW, ASSEMBLED WASHER )
REFERENCE DRAWINGS & PICTURES

DISHED HEXAGON

CROSS RECESS TYPE 1

FLAT INTERNAL TEETH

FLAT INTERNAL TEETH

Cross Reference | NSN 5305-00-285-5278
Part Number Cage Code Manufacturer
45478921450ARMY WEAPONS COMMANDATTN AMSWE-REE-S
Technical Data | NSN 5305-00-285-5278
Characteristic Specifications
THREAD SERIES DESIGNATOR UNC
NOMINAL THREAD DIAMETER0.250 INCHES
THREAD QUANTITY PER INCH20
THREAD CLASS2A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.475 INCHES MAXIMUM
FASTENER LENGTH0.500 INCHES NOMINAL
HEAD STYLE2 DISHED HEXAGON
HEAD DIAMETER0.473 INCHES MINIMUM AND 0.492 INCHES MAXIMUM
HEAD HEIGHT0.162 INCHES MINIMUM AND 0.175 INCHES MAXIMUM
INTERNAL DRIVE STYLE CROSS RECESS TYPE 1
WASHER QUANTITY1
PRIMARY WASHER STYLE FLAT INTERNAL TEETH
PRIMARY WASHER OUTSIDE DIAMETER0.466 INCHES MINIMUM AND 0.478 INCHES MAXIMUM
PRIMARY WASHER MATERIAL THICKNESS0.025 INCHES NOMINAL