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National Stock Number:
5305-01-438-2366
Federal Supply Class:
5305
National Item Identification Number:
014382366
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.
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Manufacturer Information:
| NA0038-040006 | 80205 | NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | MJ | | NOMINAL THREAD DIAMETER | 4.0 MILLIMETERS | | THREAD PITCH IN MILLIMETERS | 0.7 | | EXTERNAL THREAD TOLERANCE CLASS | 4H6H | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 7.0 MILLIMETERS NOMINAL | | FASTENER LENGTH | 11.5 MILLIMETERS NOMINAL | | MATERIAL | STEEL OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | NA0006 ASSN STD SINGLE 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 | | HEAD STYLE | FLAT COUNTERSUNK UNDERCUT | | HEAD DIAMETER | 7.0 MILLIMETERS MINIMUM AND | | 8.0 MILLIMETERS MAXIMUM | | HEAD HEIGHT | 1.67 MILLIMETERS NOMINAL | | COUNTERSINK ANGLE | 95.0 DEGREES MINIMUM AND | | 105.0 DEGREES MAXIMUM | | INTERNAL DRIVE STYLE | OFFSET CRUCIFORM (TORQUE SET) | | GRIP LENGTH | 4.0 MILLIMETERS NOMINAL | | GRIP DIAMETER | 3.965 MILLIMETERS MINIMUM AND | | 3.990 MILLIMETERS MAXIMUM | | SPECIFICATION/STANDARD DATA | 80205-NA0038 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
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