5306-01-314-2390 BOLT,MACHINE Index 5305-01-314-2392 SCREW,CAP,SOCKET HEAD

National Stock Number:
5305-01-314-2391

Federal Supply Class:
5305

National Item Identification Number:
013142391

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:
6604128 PIECE 325685NAVAL SHIP ENGINEERING CENTER PHILADELPHIA DIVISION SUBMARINE ANTENNA QUALITY ASSURANCE
6604128 PIECE 353711NAVAL SEA SYSTEMS COMMAND
6604128 PIECE 36R002SHUR-KUT SUPPLY CORPORATION


Techincal Specification:
FASTENER LENGTH1.000 INCHES NOMINAL
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
LOCKING FEATUREPELLET THREADS
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-286 FED SPEC SINGLE MATERIAL RESPONSE FASTENER
MATERIALPLASTIC POLYAMIDE NYLON LOCKING FEATURE
MATERIALNICKEL ALLOY K-500 FASTENER
NOMINAL THREAD DIAMETER0.250 INCHES
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.900 INCHES MINIMUM AND 1.000 INCHES MAXIMUM
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
THREAD QUANTITY PER INCH20
WIDTH ACROSS FLATS0.188 INCHES NOMINAL


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