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National Stock Number:
5305-01-117-0663
Federal Supply Class:
5305
National Item Identification Number:
011170663
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:
| 10115049 | A486G | NIMIKKEISTOKESKUS NCB FINLAND | | 11905-6DL24 | 59563 | REID PRODUCTS INC. | | HT4025L6D24 | 06950 | HOWMET GLOBAL FASTENING SYSTEMS INC | | HT4025L6D24 | 17446 | HUCK INTERNATIONAL, INC | | HT4025L6-D24 | 73197 | HI-SHEAR CORPORATION | | HT4025L6-D24 | L4528 | LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INC | | ST3M454-6DL24 | 0PTK6 | SPS TECHNOLOGIES INC | | HT4025L6D24 | 56878 | SPS TECHNOLOGIES, LLC | | ST3M454-6DL24 | 58998 | FASTENER INNOVATION TECHNOLOGY, INC. | | ST3M454-6DL24 | 76301 | THE BOEING COMPANY | | ST3M454-6DL24 | 92215 | HOWMET GLOBAL FASTENING SYSTEMS INC | | HT4025L6D24 | 92215 | HOWMET GLOBAL FASTENING SYSTEMS INC | | HT4025L6D24 | 97928 | HUCK INTL INC | | ST3M454-6DL24 | K5673 | SPS TECHNOLOGIES LTD TJ BROOKS DIVISION |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNJF | | NOMINAL THREAD DIAMETER | 0.375 INCHES | | THREAD QUANTITY PER INCH | 24 | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.616 INCHES MINIMUM AND | | 0.666 INCHES MAXIMUM | | FASTENER LENGTH | 2.126 INCHES MINIMUM AND | | 2.156 INCHES MAXIMUM | | MATERIAL | STEEL COMP XM-13 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | PASSIVATE OVERALL | | HEAD STYLE | FLAT COUNTERSUNK | | HEAD DIAMETER | 0.752 INCHES MINIMUM AND | | 0.762 INCHES MAXIMUM | | COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND | | 101.0 DEGREES MAXIMUM | | INTERNAL DRIVE STYLE | HIGH-TORQUE | | GRIP LENGTH | 1.490 INCHES MINIMUM AND | | 1.510 INCHES MAXIMUM | | GRIP DIAMETER | 0.3740 INCHES MINIMUM AND | | 0.3745 INCHES MAXIMUM | | DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 2.001 INCHES MINIMUM AND | | 2.041 INCHES MAXIMUM FIRST HOLE | | SHANK UNTHREADED HOLE DIAMETER | 0.106 INCHES MINIMUM AND | | 0.111 INCHES MAXIMUM FIRST HOLE |
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