5305-01-277-0363 SCREW,MACHINE Index 5305-01-277-0365 SCREW,CAP,SOCKET HEAD

National Stock Number:
5305-01-277-0364

Federal Supply Class:
5305

National Item Identification Number:
012770364

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:
FF-S-8681348FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC
MIL-F-18240 .5-13UNC-2AX1.812LG81349MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M


Techincal Specification:
THREAD SERIES DESIGNATORUNC
NOMINAL THREAD DIAMETER0.500 INCHES
THREAD QUANTITY PER INCH13
THREAD CLASS2A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH1.598 INCHES MINIMUM AND
1.812 INCHES MAXIMUM
FASTENER LENGTH1.752 INCHES MINIMUM AND
1.812 INCHES MAXIMUM
MATERIALNICKEL ALLOY K-500 FASTENER
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-286 CL A FED SPEC SINGLE MATERIAL RESPONSE FASTENER
HEAD STYLEFLAT COUNTERSUNK
HEAD DIAMETER0.872 INCHES MINIMUM AND
0.938 INCHES MAXIMUM
COUNTERSINK ANGLE80.0 DEGREES MINIMUM AND
82.0 DEGREES MAXIMUM
INTERNAL DRIVE STYLEHEXAGON
WIDTH ACROSS FLATS0.312 INCHES NOMINAL
LOCKING FEATURESTRIP OR
PATCH THREADS
NONDEFINITIVE SPEC/STD DATA4 TYPE
SPEC/STD CONTROLLING DATA
MANUFACTURERS CODE81348
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCEFF-S-86


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