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National Stock Number:
5305-01-312-0241
Federal Supply Class:
5305
National Item Identification Number:
013120241
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:
| BACB30MS6S24 | 06725 | SPS TECHNOLOGIES, LLC | | BACB30MS6S24 | 17446 | HUCK INTERNATIONAL, INC | | BACB30MS6S24 | 56878 | SPS TECHNOLOGIES, LLC | | BACB30MS6S24 | 80539 | SPS TECHNOLOGIES, LLC | | BACB30MS6S24 | 81205 | THE BOEING COMPANY | | BACB30MS6S24 | 92215 | HOWMET GLOBAL FASTENING SYSTEMS INC | | BACB30MS6S24 | 97928 | HUCK INTL INC |
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Techincal Specification:
| COLOR | RED THREADS | | COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM | | FASTENER LENGTH | 2.063 INCHES MINIMUM AND 2.093 INCHES MAXIMUM | | FEATURES PROVIDED | DRY FILM LUBRICANT | | GRIP DIAMETER | 0.3735 INCHES MINIMUM AND 0.3747 INCHES MAXIMUM | | GRIP LENGTH | 1.490 INCHES MINIMUM AND 1.510 INCHES MAXIMUM | | HEAD DIAMETER | 0.708 INCHES MINIMUM AND 0.765 INCHES MAXIMUM | | HEAD STYLE | FLAT COUNTERSUNK | | INTERNAL DRIVE STYLE | HIGH-TORQUE | | PART NAME ASSIGNED BY CONTROLLING AGENCY | NAVY SPECIAL PROJECT | | NOMINAL THREAD DIAMETER | 0.375 INCHES | | SPECIAL FEATURES | DRY FILM LUBRICANT PER MIL-L-46010 | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.553 INCHES MINIMUM AND 0.603 INCHES MAXIMUM | | THREAD QUANTITY PER INCH | 24 |
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