NSN 5305-00-231-2455

Part Details | THUMBSCREW

5305-00-231-2455 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: 253122, 253122, 5305-00-231-2455, 00-231-2455, 5305002312455, 002312455

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53OCT 24, 197000-231-245506673 ( THUMBSCREW )
REFERENCE DRAWINGS & PICTURES

HEXAGON EXTENDED WASHER

FLAT

Cross Reference | NSN 5305-00-231-2455
Part Number Cage Code Manufacturer
25312261423KIDDE TECHNOLOGIES INC.DIV KIDDE AEROSPACE AND DEFENSE
2531220KDP7KIDDE-FENWAL, INC.DBA KIDDE FIRE SYSTEM
Technical Data | NSN 5305-00-231-2455
Characteristic Specifications
THREAD SERIES DESIGNATOR UNF
NOMINAL THREAD DIAMETER0.190 INCHES
THREAD QUANTITY PER INCH32
THREAD CLASS2A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.250 INCHES MAXIMUM
FASTENER LENGTH0.500 INCHES NOMINAL
HEAD STYLE9 HEXAGON EXTENDED WASHER
HEAD HEIGHT0.453 INCHES MINIMUM AND 0.483 INCHES MAXIMUM
WIDTH BETWEEN FLATS0.395 INCHES MINIMUM AND 0.425 INCHES MAXIMUM
POINT STYLE9 FLAT
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY1
FIRST DIAMETER FROM HEAD0.120 INCHES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER0.250 INCHES NOMINAL