4820-01-535-4137 DIAPHRAGM,ACTUATOR VALVE,SPECIAL Index 6515-01-535-4139 ENHANCER,CIRCULATORY

National Stock Number:
5305-01-535-4138

Federal Supply Class:
5305

National Item Identification Number:
015354138

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:
17-2-098981337W1D1 NATICK SOLDIER CENTER
17-2-0989-281337W1D1 NATICK SOLDIER CENTER
91253A30939428MCMASTER-CARR SUPPLY CO


Techincal Specification:
COLORBLACK OVERALL
COUNTERSINK ANGLE82.0 DEGREES NOMINAL
FASTENER LENGTH1.000 INCHES NOMINAL
HARDNESS RATING39.0 ROCKWELL C MINIMUM AND 44.0 ROCKWELL C MAXIMUM OVERALL
HEAD DIAMETER0.531 INCHES NOMINAL
HEAD HEIGHT0.161 INCHES NOMINAL
HEAD STYLEFLAT COUNTERSUNK
INTERNAL DRIVE STYLEHEXAGON
MATERIAL DOCUMENT AND CLASSIFICATIONASTM F825 ASSN STD ALL MATERIAL RESPONSES OVERALL
MATERIALSTEEL OVERALL
MINIMUM TENSILE STRENGTH144000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER0.250 INCHES
PART NAME ASSIGNED BY CONTROLLING AGENCYSCREW, COUNTERSUNK, HEX SOCKET
WIDTH ACROSS FLATS0.156 INCHES NOMINAL
SURFACE TREATMENTOXIDE OVERALL
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH1.000 INCHES MINIMUM AND 1.500 INCHES MAXIMUM
THREAD SERIES DESIGNATORUNF
THREAD QUANTITY PER INCH28


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