|
|
|
National Stock Number:
5305-01-615-9836
Federal Supply Class:
5305
National Item Identification Number:
016159836
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:
| NAS7703B1 | 80205 | NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE |
|
Techincal Specification:
| COLOR | BLACK OVERALL | | FASTENER LENGTH | 0.370 INCHES MINIMUM AND 0.400 INCHES MAXIMUM | | GRIP LENGTH | 0.052 INCHES MINIMUM AND 0.072 INCHES MAXIMUM | | GRIP DIAMETER | 0.1885 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM | | HEAD DIAMETER | 0.357 INCHES MINIMUM AND 0.373 INCHES MAXIMUM | | HEAD HEIGHT | 0.122 INCHES MINIMUM AND 0.133 INCHES MAXIMUM | | HEAD STYLE | PAN | | INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1 | | MATERIAL | STEEL COMP 4140 OR STEEL COMP 4340 OVERALL | | NOMINAL THREAD DIAMETER | 0.19 INCHES | | SPECIFICATION/STANDARD DATA | 80205-NAS7703 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD | | SURFACE TREATMENT | CADMIUM OVERALL | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.323 INCHES NOMINAL | | THREAD SERIES DESIGNATOR | UNIFIED NATIONAL JOINT FINE (UNJF) | | THREAD QUANTITY PER INCH | 32.0 |
|
|