5305-01-284-8756 SCREW,SHOULDER Index 5305-01-284-8758 SCREW,CLOSE TOLERANCE

National Stock Number:
5305-01-284-8757

Federal Supply Class:
5305

National Item Identification Number:
012848757

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:
121558-4-A18P56878SPS TECHNOLOGIES, LLC
121558-4-A18P80539SPS TECHNOLOGIES, LLC
VT1694F4-1806725SPS TECHNOLOGIES, LLC
VT1694F4-1806950HOWMET GLOBAL FASTENING SYSTEMS INC
VT1694F4-1817446HUCK INTERNATIONAL, INC
C7985-4-1881755LOCKHEED MARTIN CORPORATION
VT1694F4-1827624SPS TECHNOLOGIES LLC
VT1694F4-1856878SPS TECHNOLOGIES, LLC
VT1694F4-1880539SPS TECHNOLOGIES, LLC
VT1694F4-1892215HOWMET GLOBAL FASTENING SYSTEMS INC


Techincal Specification:
FASTENER LENGTH1.528 INCHES NOMINAL
GRIP LENGTH1.125 INCHES NOMINAL


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