3120-01-377-0921 BEARING,WASHER,THRUST Index 5307-01-377-0923 STUD,CONTINUOUS THREAD

National Stock Number:
5305-01-377-0922

Federal Supply Class:
5305

National Item Identification Number:
013770922

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:
FF-S-8681348FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC
NAS1352N4LE680205NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE


Techincal Specification:
FASTENER LENGTH6.190 INCHES MINIMUM AND 6.250 INCHES MAXIMUM
HEAD DIAMETER0.365 INCHES MINIMUM AND 0.375 INCHES MAXIMUM
HEAD HEIGHT0.244 INCHES MINIMUM AND 0.250 INCHES MAXIMUM
HEAD STYLEFLAT CHAMFER
INTERNAL DRIVE STYLEHEXAGON
MINIMUM YIELD STRENGTH160000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER0.250 INCHES
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH1.000 INCHES NOMINAL
THREAD QUANTITY PER INCH20
THREAD SERIES DESIGNATORUNRC
WIDTH ACROSS FLATS0.1875 INCHES MINIMUM AND 0.1900 INCHES MAXIMUM


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