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National Stock Number:
5305-00-526-0711
Federal Supply Class:
5305
National Item Identification Number:
005260711
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:
| 11907-6L9 | 59563 | REID PRODUCTS INC. | | HT4024L6-9 | 06950 | HOWMET GLOBAL FASTENING SYSTEMS INC | | HT4024L6-9 | 0PTK6 | SPS TECHNOLOGIES INC | | HT4024L6-9 | 17446 | HUCK INTERNATIONAL, INC | | HT4024L6-9 | 56878 | SPS TECHNOLOGIES, LLC | | HT4024L6-9 | 73197 | HI-SHEAR CORPORATION | | HT4024L6-9 | 80539 | SPS TECHNOLOGIES, LLC | | HT4024L6-9 | 92215 | HOWMET GLOBAL FASTENING SYSTEMS INC | | HT4024L6-9 | 97928 | HUCK INTL INC | | HT4024L6-9 | K5673 | SPS TECHNOLOGIES LTD TJ BROOKS DIVISION | | HT4024L6-9 | L4528 | LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INC | | ST3M455-6L9 | 58998 | FASTENER INNOVATION TECHNOLOGY, INC. | | ST3M455-6L9 | 76301 | THE BOEING COMPANY | | WC4024L6-9 | 60516 | WEST COAST AEROSPACE, INC. |
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Techincal Specification:
| COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM | | FASTENER LENGTH | 1.188 INCHES MINIMUM AND 1.218 INCHES MAXIMUM | | GRIP DIAMETER | 0.3740 INCHES MINIMUM AND 0.3745 INCHES MAXIMUM | | GRIP LENGTH | 0.552 INCHES MINIMUM AND 0.572 INCHES MAXIMUM | | HEAD DIAMETER | 0.510 INCHES MINIMUM AND 0.564 INCHES MAXIMUM | | HEAD STYLE | FLAT COUNTERSUNK | | INTERNAL DRIVE STYLE | HIGH-TORQUE | | MATERIAL | STEEL CORROSION RESISTING OVERALL | | NOMINAL THREAD DIAMETER | 0.375 INCHES | | SURFACE TREATMENT | PASSIVATE OVERALL | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.616 INCHES MINIMUM AND 0.666 INCHES MAXIMUM | | THREAD QUANTITY PER INCH | 24 | | THREAD SERIES DESIGNATOR | UNJF |
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