5305-01-284-8381 SCREW,CLOSE TOLERANCE Index 5305-01-284-8383 SCREW,CLOSE TOLERANCE

National Stock Number:
5305-01-284-8382

Federal Supply Class:
5305

National Item Identification Number:
012848382

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:
121558-5-1956878SPS TECHNOLOGIES, LLC
121558-5-1980539SPS TECHNOLOGIES, LLC
AIC9855-1906725SPS TECHNOLOGIES, LLC
VT1694F5-1906950HOWMET GLOBAL FASTENING SYSTEMS INC
HI855-1917446HUCK INTERNATIONAL, INC
C7985-5-1981755LOCKHEED MARTIN CORPORATION
VT1694F5-1992215HOWMET GLOBAL FASTENING SYSTEMS INC


Techincal Specification:
FASTENER LENGTH1.689 INCHES NOMINAL
GRIP LENGTH1.188 INCHES NOMINAL


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