NSN 5305-01-226-1946

Part Details | THUMBSCREW

5305-01-226-1946 An externally threaded fastener whose threaded portion is of one nominal diameter. It may have an unthreaded portion with a diameter less than, equal to, or greater than the diameter of the threaded portion. It has either a vertically flattened, circular knurled, or wing type head, all of which are designed for rotation by the thumb and fingers. For items having wrenching facilities such as socket recess, multiple spline or slot heads, use SCREW (as modified) or BOLT (as modified).

Alternate Parts: 3C3059P08, 5305-01-226-1946, 01-226-1946, 5305012261946, 012261946

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53FEB 13, 198601-226-194606673 ( THUMBSCREW )
REFERENCE DRAWINGS & PICTURES

HEXAGON COUNTERSUNK UNDERCUT

FLAT

Cross Reference | NSN 5305-01-226-1946
Part Number Cage Code Manufacturer
3C3059P0807482GENERAL ELECTRIC COMPANYDBA GE
Technical Data | NSN 5305-01-226-1946
Characteristic Specifications
THREAD SERIES DESIGNATOR UNF
NOMINAL THREAD DIAMETER0.250 INCHES
THREAD QUANTITY PER INCH28
THREAD CLASS2A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.450 INCHES NOMINAL
FASTENER LENGTH0.990 INCHES NOMINAL
HEAD STYLE9 HEXAGON COUNTERSUNK UNDERCUT
HEAD DIAMETER0.380 INCHES NOMINAL
HEAD HEIGHT0.630 INCHES NOMINAL
POINT STYLE9 FLAT
SPECIAL FEATURESUNDERCUT IN SHANK 0.029 IN. MIN 0.032 IN. MAX LENGTH,DIA 0.210 IN. MIN 0.212 IN. MAX