5305-01-295-0087, SCREW,CAP,SOCKET HEAD

National Stock Number:
5305-01-295-0087

Federal Supply Class:
5305

National Item Identification Number:
012950087

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:

NAS1189E4P10L

80205

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

Techincal Specification:

COUNTERSINK ANGLE	99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
FASTENER LENGTH	0.594 INCHES MINIMUM AND 0.625 INCHES MAXIMUM
HARDNESS RATING	24.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM FASTENER
HEAD DIAMETER	0.442 INCHES MINIMUM AND 0.507 INCHES MAXIMUM
HEAD STYLE	FLAT COUNTERSUNK
INTERNAL DRIVE STYLE	CROSS RECESS TYPE 1
LOCKING FEATURE	STRIP THREADS
MATERIAL DOCUMENT AND CLASSIFICATION	AMS5737 ASSN STD SINGLE MATERIAL RESPONSE FASTENER
MATERIAL	IRON ALLOY 660 FASTENER
MATERIAL	PLASTIC POLYCHLOROTRIFLUOROETHYLENE LOCKING FEATURE
MINIMUM YIELD STRENGTH	85000 POUNDS PER SQUARE INCH
MINIMUM TENSILE STRENGTH	160000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER	0.250 INCHES
SPECIFICATION/STANDARD DATA	80205-NAS1189 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
SURFACE FINISH	32.0 MICROINCHES BEARING SURFACE OF HEAD
SURFACE FINISH	32.0 MICROINCHES THREADS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE FASTENER
SURFACE TREATMENT	PASSIVATE FASTENER
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.417 INCHES MINIMUM AND 0.519 INCHES MAXIMUM
THREAD QUANTITY PER INCH	28
THREAD SERIES DESIGNATOR	UNIFIED NATIONAL JOINT FINE (UNJF)

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