5305-01-287-6277 SCREW,MACHINE Index 5305-01-287-6279 SCREW,CAP,SOCKET HEAD

National Stock Number:
5305-01-287-6278

Federal Supply Class:
5305

National Item Identification Number:
012876278

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:
NAS1352N08LE880205NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE


Techincal Specification:
THREAD SERIES DESIGNATORUNRC
NOMINAL THREAD DIAMETER0.164 INCHES
THREAD QUANTITY PER INCH32
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.438 INCHES MINIMUM AND
0.500 INCHES MAXIMUM
FASTENER LENGTH0.470 INCHES MINIMUM AND
0.500 INCHES MAXIMUM
MATERIALPLASTIC POLYAMIDE LOCKING FEATURE
IRON ALLOY 660 FASTENER
MATERIAL DOCUMENT AND CLASSIFICATIONAMS5731 ASSN STD SINGLE MATERIAL RESPONSE OR
AMS5737 ASSN STD SINGLE MATERIAL RESPONSE FASTENER
SURFACE TREATMENTPASSIVATE FASTENER
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE FASTENER
HARDNESS RATING33.0 ROCKWELL C MINIMUM AND
42.0 ROCKWELL C MAXIMUM FASTENER
MINIMUM TENSILE STRENGTH160000 POUNDS PER SQUARE INCH
HEAD STYLEFLAT CHAMFER
HEAD DIAMETER0.262 INCHES MINIMUM AND
0.270 INCHES MAXIMUM
HEAD HEIGHT0.159 INCHES MINIMUM AND
0.164 INCHES MAXIMUM
INTERNAL DRIVE STYLEHEXAGON
WIDTH ACROSS FLATS0.141 INCHES MINIMUM AND
0.143 INCHES MAXIMUM
LOCKING FEATUREPATCH OR
PELLET OR
STRIP THREADS
SPECIFICATION/STANDARD DATA80205-NAS1352 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD


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