5305-00-004-5180, SCREW,CAP,SOCKET HEAD

National Stock Number:
5305-00-004-5180

Federal Supply Class:
5305

National Item Identification Number:
000045180

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:

NAS1190-4T16L

80205

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

Techincal Specification:

THREAD SERIES DESIGNATOR	UNJF
NOMINAL THREAD DIAMETER	0.250 INCHES
THREAD QUANTITY PER INCH	28
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.898 INCHES MINIMUM AND
	1.000 INCHES MAXIMUM
FASTENER LENGTH	0.969 INCHES MINIMUM AND
	1.000 INCHES MAXIMUM
MATERIAL	STEEL COMP 4140 OR
	STEEL COMP E4340 OR
	STEEL COMP 8740 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION	MIL-S-5626 MIL SPEC 1ST MATERIAL RESPONSE OR
	MIL-S-5000 MIL SPEC 2ND MATERIAL RESPONSE OR
	MIL-S-6049 MIL SPEC 3RD MATERIAL RESPONSE OVERALL
SURFACE TREATMENT	CADMIUM AND
	CHROMATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-416 TY 2 CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
HARDNESS RATING	36.0 ROCKWELL C MINIMUM AND
	40.0 ROCKWELL C MAXIMUM OVERALL
MINIMUM TENSILE STRENGTH	160000 POUNDS PER SQUARE INCH
HEAD STYLE	PAN
HEAD DIAMETER	0.473 INCHES MINIMUM AND
	0.492 INCHES MAXIMUM
HEAD HEIGHT	0.162 INCHES MINIMUM AND
	0.175 INCHES MAXIMUM
INTERNAL DRIVE STYLE	OFFSET CRUCIFORM (TORQUE SET)
LOCKING FEATURE	STRIP THREADS
SURFACE FINISH	32.0 MICROINCHES BEARING SURFACE OF HEAD
	32.0 MICROINCHES THREADS
SPECIFICATION/STANDARD DATA	80205-NAS1190 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD

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