NSN 5305-00-149-9838

Part Details | MACHINE SCREW

5305-00-149-9838 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: NAS221BZ10, 221BZ10, 5305-00-149-9838, 00-149-9838, 5305001499838, 001499838

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53JAN 01, 196300-149-983806657 ( SCREW, MACHINE )
REFERENCE DRAWINGS & PICTURES

UNDERCUT HEXAGON

CROSS RECESS TYPE 1

Cross Reference | NSN 5305-00-149-9838
Part Number Cage Code Manufacturer
NAS221BZ1080205NATIONAL AEROSPACE STANDARDSCOMMITTEE AEROSPACE INDUSTRIES
221BZ1080937NATIONAL STEEL CORP
Technical Data | NSN 5305-00-149-9838
Characteristic Specifications
THREAD SERIES DESIGNATOR UNF
NOMINAL THREAD DIAMETER0.190 INCHES
THREAD QUANTITY PER INCH32
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.376 INCHES MINIMUM AND 0.515 INCHES MAXIMUM
FASTENER LENGTH0.641 INCHES MINIMUM AND 0.688 INCHES MAXIMUM
SCREW MATERIAL COPPER ALLOY
MINIMUM TENSILE STRENGTH85000 POUNDS PER SQUARE INCH
HEAD STYLE8 UNDERCUT HEXAGON
HEAD DIAMETER0.361 INCHES MINIMUM AND 0.385 INCHES MAXIMUM
HEAD HEIGHT0.103 INCHES MINIMUM AND 0.118 INCHES MAXIMUM
INTERNAL DRIVE STYLE CROSS RECESS TYPE 1