5305-01-226-4935 SCREW,MACHINE Index 5305-01-226-4937 SCREW,CAP,SOCKET HEAD

National Stock Number:
5305-01-226-4936

Federal Supply Class:
5305

National Item Identification Number:
012264936

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:
6987223-4053711NAVAL SEA SYSTEMS COMMAND
FF-S-8681348FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC


Techincal Specification:
THREAD SERIES DESIGNATORUNC
NOMINAL THREAD DIAMETER0.625 INCHES
THREAD QUANTITY PER INCH11
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH1.214 INCHES MINIMUM AND
1.426 INCHES MAXIMUM
FASTENER LENGTH1.720 INCHES MINIMUM AND
1.750 INCHES MAXIMUM
MATERIALNICKEL ALLOY 400 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MINIMUM TENSILE STRENGTH80000 POUNDS PER SQUARE INCH
MINIMUM YIELD STRENGTH40000 POUNDS PER SQUARE INCH
HEAD STYLEFLAT COUNTERSUNK
HEAD DIAMETER1.112 INCHES MINIMUM AND
1.188 INCHES MAXIMUM
COUNTERSINK ANGLE80.0 DEGREES MINIMUM AND
84.0 DEGREES MAXIMUM
INTERNAL DRIVE STYLEHEXAGON
WIDTH ACROSS FLATS0.375 INCHES NOMINAL
LOCKING FEATUREPELLET THREADS
NONDEFINITIVE SPEC/STD DATA4 TYPE
SPEC/STD CONTROLLING DATA
MANUFACTURERS CODE81348
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCEFF-S-86


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