5310-00-687-6737 NUT,SELF-LOCKING,HEXAGON Index 5305-00-687-6740 SETSCREW

National Stock Number:
5305-00-687-6738

Federal Supply Class:
5305

National Item Identification Number:
006876738

Description:
SCREW,CAP,SOCKET HEAD

Detail:
An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes items with bevel (conical) heads. See BOLT, INTERNAL WRENCHING. Excludes SCREW, SHOULDER; and SCREW, MACHINE.


Manufacturer Information:
FFS86TYPE1STYLE281348FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC
NAS608C832-880205NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE
NAS608C832-8A0126LEONARDO SPA HELICOPTERS DIVISION -PRODUCTION SITE


Techincal Specification:
FASTENER LENGTH0.500 INCHES NOMINAL
HARDNESS RATING36.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL
HEAD DIAMETER0.265 INCHES MINIMUM AND 0.270 INCHES MAXIMUM
HEAD HEIGHT0.160 INCHES MINIMUM AND 0.164 INCHES MAXIMUM
HEAD STYLEFLAT CHAMFER
INTERNAL DRIVE STYLEHEXAGON
MATERIALSTEEL CORROSION RESISTING OVERALL
NOMINAL THREAD DIAMETER0.164 INCHES
NONDEFINITIVE SPEC/STD DATA1 TYPE AND 11 STYLE
WIDTH ACROSS FLATS0.125 INCHES MINIMUM AND 0.127 INCHES MAXIMUM
SURFACE TREATMENTPASSIVATE OVERALL
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.500 INCHES NOMINAL
THREAD SERIES DESIGNATORUNC
THREAD QUANTITY PER INCH32


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