NSN 5305-00-904-5808

Part Details | MACHINE SCREW

5305-00-904-5808 An externally threaded fastener whose threaded portion is of one nominal diameter, No 0 (0.060 in./1.5 mm) or larger, designed to be held or driven with either a wrench or an inserted driver or both (excluding internal socket or internal multiple spline types), in sizes below No. 10 (0.190 in./5 mm). No. 10 and larger sizes must have a head designed for any type inserted driver (excluding internal socket or internal multiple spline types), but may also be designed for external wrenching. A locking feature may be incorporated in the design of the head or threads. Excludes BOLT, CLEVIS; BOLT, EXTERNALLY RELIEVED BODY; SCREW, EXTERNALLY RELIEVED BODY; and SCREW, ASSEMBLED WASHER. See also, SCREW, INSTRUMENT; BOLT, MACHINE; BOLT, INTERNAL WRENCHING; and SCREW, CAP SOCKET HEAD.

Alternate Parts: R1445P005, R1445P005, 5305-00-904-5808, 00-904-5808, 5305009045808, 009045808

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53DEC 17, 196500-904-580806657 ( SCREW, MACHINE )
REFERENCE DRAWINGS & PICTURES

DISHED HEXAGON

CROSS RECESS TYPE 1

Cross Reference | NSN 5305-00-904-5808
Part Number Cage Code Manufacturer
R1445P00506950ARCONIC GLOBAL FASTENERS & RINGS,INC.
R1445P00599207GENERAL ELECTRIC COMPANYDBA GE
Technical Data | NSN 5305-00-904-5808
Characteristic Specifications
THREAD SERIES DESIGNATOR UNC
NOMINAL THREAD DIAMETER0.250 INCHES
THREAD QUANTITY PER INCH20
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.347 INCHES MINIMUM
FASTENER LENGTH0.500 INCHES NOMINAL
SCREW MATERIAL IRON ALLOY 660
SCREW MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5735 ASSN STD SINGLE MATERIAL RESPONSE
SCREW SURFACE TREATMENT PASSIVATE
HARDNESS RATING26.0 ROCKWELL C MINIMUM
MINIMUM TENSILE STRENGTH85000 POUNDS PER SQUARE INCH
HEAD STYLE9 DISHED HEXAGON
HEAD DIAMETER0.462 INCHES MINIMUM AND 0.507 INCHES MAXIMUM
COUNTERSINK ANGLE80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM
INTERNAL DRIVE STYLE CROSS RECESS TYPE 1