5305-01-379-6052, SCREW,CAP,SOCKET HEAD

6550-01-379-6053 REFERENCE STANDARD,YEAST TURBIDITY

National Stock Number:
5305-01-379-6052

Federal Supply Class:
5305

National Item Identification Number:
013796052

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:

NAS1352N4-20	80205	NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE
NAS1531N4-20	80205	NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE

Techincal Specification:

THREAD SERIES DESIGNATOR	UNRC
NOMINAL THREAD DIAMETER	0.250 INCHES
THREAD QUANTITY PER INCH	20
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	1.000 INCHES MINIMUM
FASTENER LENGTH	1.210 INCHES MINIMUM AND
	1.250 INCHES MAXIMUM
MATERIAL	IRON ALLOY 660 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION	AMS5731 ASSN STD SINGLE MATERIAL RESPONSE OR
	AMS5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENT	PASSIVATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
HARDNESS RATING	33.0 ROCKWELL C MINIMUM AND
	42.0 ROCKWELL C MAXIMUM OVERALL
MINIMUM TENSILE STRENGTH	160000 POUNDS PER SQUARE INCH
HEAD STYLE	FLAT CHAMFER
HEAD DIAMETER	0.365 INCHES MINIMUM AND
	0.375 INCHES MAXIMUM
HEAD HEIGHT	0.244 INCHES MINIMUM AND
	0.250 INCHES MAXIMUM
INTERNAL DRIVE STYLE	HEXAGON
WIDTH ACROSS FLATS	0.1875 INCHES MINIMUM AND
	0.1900 INCHES MAXIMUM
SPECIFICATION/STANDARD DATA	80205-NAS1531 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD

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