5305-01-446-1613 SCREW,CAP,SOCKET HEAD Index 5310-01-446-1615 WASHER,FLAT

National Stock Number:
5305-01-446-1614

Federal Supply Class:
5305

National Item Identification Number:
014461614

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:
21105257253711NAVAL SEA SYSTEMS COMMAND
585-6404866-1953711NAVAL SEA SYSTEMS COMMAND
DF2081-216-1943689HUNTINGTON INGALLS INC


Techincal Specification:
FASTENER LENGTH1.250 INCHES NOMINAL
HARDNESS RATING80.0 ROCKWELL B MINIMUM FASTENER
HEAD DIAMETER0.457 INCHES MINIMUM AND 0.469 INCHES MAXIMUM
HEAD HEIGHT0.306 INCHES MINIMUM AND 0.312 INCHES MAXIMUM
HEAD STYLEFLAT CHAMFER
INTERNAL DRIVE STYLEHEXAGON
LOCKING FEATUREPATCH OR PELLET OR STRIP THREADS
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE FASTENER
MATERIALPLASTIC POLYAMIDE NYLON LOCKING FEATURE
MATERIALNICKEL ALLOY 400 FASTENER
MINIMUM YIELD STRENGTH40000 POUNDS PER SQUARE INCH
MINIMUM TENSILE STRENGTH80000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER0.312 INCHES
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH1.120 INCHES MINIMUM
THREAD SERIES DESIGNATORUNRC
THREAD QUANTITY PER INCH18
WIDTH ACROSS FLATS0.250 INCHES NOMINAL


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