5305-01-199-0250, SCREW,CLOSE TOLERANCE

National Stock Number:
5305-01-199-0250

Federal Supply Class:
5305

National Item Identification Number:
011990250

Description:
SCREW,CLOSE TOLERANCE

Detail:
A SCREW, MACHINE or SCREW, CAP, SOCKET HEAD whose unthreaded portion is of specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001 IN.) (0.025 mm) or less of a specific diameter for items (1.000 IN.) (25 mm) or less in diameter. Items over (1.000 IN.) (25 mm) in diameter shall have a tolerance of fifteen ten thousandths (0.0015 IN.) (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001 IN.) (0.025 mm) below the minimum shank diameter, but not below the minimum major diameter for applicable class of fit, as shown in the Screw Thread Standards, FED STD H28 and/or other nationally recognized standards. The head is designed to be held or driven with an inserted driver. It is not designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads.

Manufacturer Information:

NA0035-050012

80205

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

Techincal Specification:

THREAD SERIES DESIGNATOR	MJ
NOMINAL THREAD DIAMETER	5.0 MILLIMETERS
THREAD PITCH IN MILLIMETERS	0.8
EXTERNAL THREAD TOLERANCE CLASS	4H6H
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	9.0 MILLIMETERS NOMINAL
FASTENER LENGTH	21.00 MILLIMETERS NOMINAL
MATERIAL	STEEL OVERALL
SURFACE TREATMENT	CADMIUM OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-416,TYPE 2,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
HARDNESS RATING	36.0 ROCKWELL C MINIMUM AND
	40.0 ROCKWELL C MAXIMUM OVERALL
HEAD STYLE	PAN NO. 2
HEAD DIAMETER	9.7 MILLIMETERS MINIMUM AND
	10.0 MILLIMETERS MAXIMUM
HEAD HEIGHT	2.8 MILLIMETERS MINIMUM AND
	3.0 MILLIMETERS MAXIMUM
INTERNAL DRIVE STYLE	OFFSET CRUCIFORM (TORQUE SET)
GRIP LENGTH	12.00 MILLIMETERS NOMINAL
GRIP DIAMETER	4.9785 MILLIMETERS NOMINAL
SPECIFICATION/STANDARD DATA	80205-NA0035 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD

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