5305-01-063-8491 SCREW,CAP,SOCKET HEAD Index 4710-01-063-8493 TUBE,METALLIC

National Stock Number:
5305-01-063-8492

Federal Supply Class:
5305

National Item Identification Number:
010638492

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:
4666881PC1253711NAVAL SEA SYSTEMS COMMAND
FF-S-8681348FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC
MS24672-696906MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M


Techincal Specification:
THREAD SERIES DESIGNATORUNF
NOMINAL THREAD DIAMETER0.190 INCHES
THREAD QUANTITY PER INCH32
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.880 INCHES MINIMUM
FASTENER LENGTH1.234 INCHES MINIMUM AND
1.281 INCHES MAXIMUM
MATERIALSTEEL COMP 303 OR
STEEL COMP 304 OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
HARDNESS RATING80.0 ROCKWELL B NOMINAL OVERALL
MINIMUM TENSILE STRENGTH70000 POUNDS PER SQUARE INCH
MINIMUM YIELD STRENGTH30000 POUNDS PER SQUARE INCH
HEAD STYLEFLAT COUNTERSUNK
HEAD DIAMETER0.359 INCHES MINIMUM AND
0.411 INCHES MAXIMUM
COUNTERSINK ANGLE82.0 DEGREES NOMINAL
INTERNAL DRIVE STYLEHEXAGON
WIDTH ACROSS FLATS0.125 INCHES MINIMUM AND
0.127 INCHES MAXIMUM
NONDEFINITIVE SPEC/STD DATA4 TYPE
SPEC/STD CONTROLLING DATA
MANUFACTURERS CODE81348
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCEFF-S-86
MANUFACTURERS CODE96906
DEFINITIVE GOVERNMENT SPEC/STD REFERENCEMS24672-6


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