5305-01-322-2550, SCREW,CAP,SOCKET HEAD

National Stock Number:
5305-01-322-2550

Federal Supply Class:
5305

National Item Identification Number:
013222550

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:

20409-003 FIND 39	78062	SARGENT AEROSPACE & DEFENSE, LLC
NAS1351N08H6S	80205	NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE

Techincal Specification:

THREAD SERIES DESIGNATOR	UNRF
NOMINAL THREAD DIAMETER	0.164 INCHES
THREAD QUANTITY PER INCH	36
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.289 INCHES MINIMUM AND
	0.375 INCHES MAXIMUM
FASTENER LENGTH	0.345 INCHES MINIMUM AND
	0.375 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	SILVER OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	AMS2411 ASSN STD 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
MINIMUM YIELD STRENGTH	120000 POUNDS PER SQUARE INCH
HEAD STYLE	FLAT CHAMFER
HEAD DIAMETER	0.262 INCHES MINIMUM AND
	0.270 INCHES MAXIMUM
HEAD HEIGHT	0.159 INCHES MINIMUM AND
	0.164 INCHES MAXIMUM
INTERNAL DRIVE STYLE	HEXAGON
WIDTH ACROSS FLATS	0.141 INCHES MINIMUM AND
	0.143 INCHES MAXIMUM
HOLE CONFIGURATION STYLE	ROUND INTERNAL HEXAGON
HOLE TYPE	DRILLED
HOLE QUANTITY	6
HOLE DIAMETER	0.044 INCHES MINIMUM AND
	0.050 INCHES MAXIMUM
SPECIFICATION/STANDARD DATA	80205-NAS1351 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
PRECIOUS MATERIAL	SILVER
PRECIOUS MATERIAL AND LOCATION	OVERALL SILVER

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