NSN 5305-01-218-4908

Part Details | THUMBSCREW

5305-01-218-4908 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: SMC950198, SM-C-950198, 5305-01-218-4908, 01-218-4908, 5305012184908, 012184908

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53OCT 14, 198501-218-490806673 ( THUMBSCREW )
REFERENCE DRAWINGS & PICTURES

FLAT

Cross Reference | NSN 5305-01-218-4908
Part Number Cage Code Manufacturer
SM-C-95019880063US ARMY COMMUNICATIONS &ELECTRONICS MATERIEL READINESS
Technical Data | NSN 5305-01-218-4908
Characteristic Specifications
THREAD SERIES DESIGNATOR UNC
NOMINAL THREAD DIAMETER0.312 INCHES
THREAD QUANTITY PER INCH18
THREAD CLASS2A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.554 INCHES MINIMUM AND 0.586 INCHES MAXIMUM
FASTENER LENGTH1.859 INCHES MINIMUM AND 1.891 INCHES MAXIMUM
HEAD HEIGHT0.984 INCHES MINIMUM AND 1.016 INCHES MAXIMUM
WIDTH BETWEEN FLATS1.484 INCHES MINIMUM AND 1.516 INCHES MAXIMUM
POINT STYLE6 FLAT