5305-01-334-2817 SCREW,CAP,SOCKET HEAD Index 5305-01-334-2819 SCREW,CAP,HEXAGON HEAD

National Stock Number:
5305-01-334-2818

Federal Supply Class:
5305

National Item Identification Number:
013342818

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:
524-6603688-VHBA-10153711NAVAL SEA SYSTEMS COMMAND
5959303-9096169ELECTRIC BOAT CORPORATION
803-5959303-X-9053711NAVAL SEA SYSTEMS COMMAND


Techincal Specification:
THREAD SERIES DESIGNATORUNRC
NOMINAL THREAD DIAMETER0.250 INCHES
THREAD QUANTITY PER INCH20
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.650 INCHES MINIMUM AND
0.750 INCHES MAXIMUM
FASTENER LENGTH0.750 INCHES NOMINAL
MATERIALPLASTIC POLYAMIDE LOCKING FEATURE
TITANIUM ALLOY UNS R56400 FASTENER
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 4928 ASSN STD SINGLE MATERIAL RESPONSE FASTENER
HEAD STYLEFLAT CHAMFER
HEAD DIAMETER0.365 INCHES MINIMUM AND
0.375 INCHES MAXIMUM
HEAD HEIGHT0.244 INCHES MINIMUM AND
0.250 INCHES MAXIMUM
INTERNAL DRIVE STYLEHEXAGON
WIDTH ACROSS FLATS0.188 INCHES NOMINAL
LOCKING FEATUREPELLET OR
STRIP OR
PATCH THREADS


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