5305-01-168-3918 SCREW,MACHINE Index 5305-01-168-3921 SETSCREW

National Stock Number:
5305-01-168-3920

Federal Supply Class:
5305

National Item Identification Number:
011683920

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:
203-4678499 ITEM 2380064NAVAL SHIP SYSTEMS COMMAND
87713-0304 ITEM 2396169ELECTRIC BOAT CORPORATION
FF-S-8681348FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC


Techincal Specification:
COUNTERSINK ANGLE82.0 DEGREES NOMINAL
FASTENER LENGTH5.880 INCHES MINIMUM AND 6.000 INCHES MAXIMUM
HEAD DIAMETER1.112 INCHES MINIMUM AND 1.188 INCHES MAXIMUM
HEAD STYLEFLAT COUNTERSUNK
INTERNAL DRIVE STYLEHEXAGON
LOCKING FEATURESTRIP OR PELLET OR PATCH THREADS
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE FASTENER
MATERIALPLASTIC LOCKING FEATURE
MATERIALNICKEL ALLOY 400 FASTENER
MINIMUM TENSILE STRENGTH80000 POUNDS PER SQUARE INCH
MINIMUM YIELD STRENGTH40000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER0.625 INCHES
NONDEFINITIVE SPEC/STD DATA4 TYPE
WIDTH ACROSS FLATS0.375 INCHES NOMINAL
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH2.130 INCHES MINIMUM AND 2.700 INCHES MAXIMUM
THREAD QUANTITY PER INCH11
THREAD SERIES DESIGNATORUNC


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