5310-01-445-3343 NUT,PLAIN,BARREL Index 5305-01-445-3345 SCREW,CAP,SOCKET HEAD

National Stock Number:
5305-01-445-3344

Federal Supply Class:
5305

National Item Identification Number:
014453344

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:
21103320953711NAVAL SEA SYSTEMS COMMAND
595-6401267 ITEM 12953711NAVAL SEA SYSTEMS COMMAND
640126753711NAVAL SEA SYSTEMS COMMAND
6401267 FIND 12953711NAVAL SEA SYSTEMS COMMAND
801-6405354 FIND 2353711NAVAL SEA SYSTEMS COMMAND


Techincal Specification:
THREAD SERIES DESIGNATORUNRC
NOMINAL THREAD DIAMETER0.375 INCHES
THREAD QUANTITY PER INCH16
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.750 INCHES MINIMUM AND
0.875 INCHES MAXIMUM
FASTENER LENGTH0.875 INCHES NOMINAL
MATERIALPLASTIC POLYAMIDE LOCKING FEATURE
NICKEL ALLOY 400 FASTENER
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE FASTENER
HARDNESS RATING80.0 ROCKWELL B MINIMUM FASTENER
MINIMUM TENSILE STRENGTH80000 POUNDS PER SQUARE INCH
MINIMUM YIELD STRENGTH40000 POUNDS PER SQUARE INCH
HEAD STYLEFLAT CHAMFER
HEAD DIAMETER0.550 INCHES MINIMUM AND
0.562 INCHES MAXIMUM
HEAD HEIGHT0.368 INCHES MINIMUM AND
0.375 INCHES MAXIMUM
INTERNAL DRIVE STYLEHEXAGON
WIDTH ACROSS FLATS0.312 INCHES MINIMUM
LOCKING FEATUREPATCH OR
PELLET OR
STRIP THREADS


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