4140-01-621-0256 FAN,TUBEAXIAL 7220-01-621-3154 TREAD,NONMETALLIC,NONSKID

National Stock Number:
5305-01-621-2654

Federal Supply Class:
5305

National Item Identification Number:
016212654

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:
116056-.625-SS-H-1251506ACCURATE SCREW MACHINE CORP


Techincal Specification:
FASTENER LENGTH0.375 INCHES MINIMUM AND 1.500 INCHES MAXIMUM
HEAD DIAMETER0.307 INCHES MINIMUM AND 0.312 INCHES MAXIMUM
HEAD HEIGHT0.092 INCHES MINIMUM AND 0.095 INCHES MAXIMUM
HEAD STYLEFILLISTER
INTERNAL DRIVE STYLEHEXAGON
MATERIALSTEEL COMP 303 OR STEEL COMP 304 OVERALL
NOMINAL THREAD DIAMETER0.190 INCHES
WIDTH ACROSS FLATS0.093 INCHES NOMINAL
SURFACE TREATMENTPASSIVATE OVERALL
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.250 INCHES NOMINAL
THREAD SERIES DESIGNATORUNF
THREAD QUANTITY PER INCH32


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