5305-01-221-3493 SCREW,CAP,SOCKET HEAD Index 5305-01-221-3495 SCREW,CAP,SOCKET HEAD

National Stock Number:
5305-01-221-3494

Federal Supply Class:
5305

National Item Identification Number:
012213494

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:
1157M31P0107482GENERAL ELECTRIC COMPANY
1157M31P010CUY9COLORADO ELEVATOR SERVICE INC.
1157M31P010UCY9M.S. AEROSPACE INC.


Techincal Specification:
THREAD SERIES DESIGNATORUNJF
NOMINAL THREAD DIAMETER0.312 INCHES
THREAD QUANTITY PER INCH24
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH1.660 INCHES MINIMUM AND
1.803 INCHES MAXIMUM
FASTENER LENGTH2.220 INCHES MINIMUM AND
2.280 INCHES MAXIMUM
MATERIALIRON ALLOY 660 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONAMS5731 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
HEAD STYLEFLAT CHAMFER
HEAD DIAMETER0.457 INCHES MINIMUM AND
0.468 INCHES MAXIMUM
HEAD HEIGHT0.306 INCHES MINIMUM AND
0.312 INCHES MAXIMUM
INTERNAL DRIVE STYLEHEXAGON
WIDTH ACROSS FLATS0.250 INCHES MINIMUM AND
0.253 INCHES MAXIMUM
HOLE CONFIGURATION STYLEROUND INTERNAL HEXAGON
HOLE TYPEDRILLED
HOLE QUANTITY6
HOLE DIAMETER0.050 INCHES MINIMUM AND
0.070 INCHES MAXIMUM
SURFACE FINISH32.0 MICROINCHES THREADS


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