5305-01-266-8349 SCREW,CAP,SOCKET HEAD Index 5305-01-266-8351 SCREW,CAP,SOCKET HEAD

National Stock Number:
5305-01-266-8350

Federal Supply Class:
5305

National Item Identification Number:
012668350

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:
704AS9843-430003NAVAL AIR SYSTEMS COMMAND MANAGED ORIGINAL DESIGN ACTIVITY NOT MATERIAL/PARTS SUPPLIER
899843-496214RAYTHEON COMPANY
S20620-426233NYLOK LLC


Techincal Specification:
COUNTERSINK ANGLE99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
FASTENER LENGTH0.408 INCHES MINIMUM AND 0.438 INCHES MAXIMUM
HEAD DIAMETER0.143 INCHES MINIMUM AND 0.172 INCHES MAXIMUM
HEAD STYLEFLAT COUNTERSUNK
INTERNAL DRIVE STYLECROSS RECESS TYPE 1
LOCKING FEATUREPATCH THREADS
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-F-18240 MIL SPEC SINGLE MATERIAL RESPONSE LOCKING FEATURE
MATERIALPLASTIC LOCKING FEATURE
MATERIALSTEEL COMP 321 OR STEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 347 FASTENER
MINIMUM TENSILE STRENGTH80000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER0.086 INCHES
SPECIAL FEATURESLOCKING ELEMENT SHALL BEGIN NO MORE THAN TWO AND ONE HALF THREADS FROM SCREW END
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE FASTENER
SURFACE TREATMENTPASSIVATE FASTENER
THREAD CLASS2A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.336 INCHES MINIMUM AND 0.409 INCHES MAXIMUM
THREAD QUANTITY PER INCH56
THREAD SERIES DESIGNATORUNC


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