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National Stock Number:
5305-01-105-9371
Federal Supply Class:
5305
National Item Identification Number:
011059371
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:
| 11883-3-12/11883-3L12 | 59563 | REID PRODUCTS INC. | | 3M926-3-12 | 76301 | THE BOEING COMPANY | | 3M926-3L12 | 007R1 | TWIST TITE MFG, INC | | 3M926-3L12 | 06950 | HOWMET GLOBAL FASTENING SYSTEMS INC | | 3M926-3L12 | 17446 | HUCK INTERNATIONAL, INC | | 3M926-3L12 | 1VSL7 | HOUSTON PRECISION FASTENERS I LP | | 3M926-3L12 | 56878 | SPS TECHNOLOGIES, LLC | | 3M926-3L12 | 58998 | FASTENER INNOVATION TECHNOLOGY, INC. | | 3M926-3L12 | 60516 | WEST COAST AEROSPACE, INC. | | 3M926-3L12 | 73197 | HI-SHEAR CORPORATION | | 3M926-3L12 | 76301 | THE BOEING COMPANY | | 3M926-3L12 | 80539 | SPS TECHNOLOGIES, LLC | | 3M926-3L12 | K5673 | SPS TECHNOLOGIES LTD TJ BROOKS DIVISION | | 3M926-3L12 | L4528 | LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INC | | HY4068-3-12A | 17446 | HUCK INTERNATIONAL, INC | | HT4068-3-12 | 56878 | SPS TECHNOLOGIES, LLC | | HT4068-3-12A | 56878 | SPS TECHNOLOGIES, LLC | | WC4068-3-12 | 60516 | WEST COAST AEROSPACE, INC. | | HT4068-3-12A | 73197 | HI-SHEAR CORPORATION | | HT4068-3-12 | 73197 | HI-SHEAR CORPORATION | | HT4068-3-12A | 80539 | SPS TECHNOLOGIES, LLC | | HT4068-3-12A | 92215 | HOWMET GLOBAL FASTENING SYSTEMS INC | | HT4068-3-12 | 92215 | HOWMET GLOBAL FASTENING SYSTEMS INC | | HY4068-3-12A | 97928 | HUCK INTL INC |
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Techincal Specification:
| COUNTERSINK ANGLE | 101.0 DEGREES NOMINAL | | FASTENER LENGTH | 1.141 INCHES MINIMUM AND 1.171 INCHES MAXIMUM | | GRIP DIAMETER | 0.1885 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM | | GRIP LENGTH | 0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM | | HEAD DIAMETER | 0.2966 INCHES MINIMUM AND 0.3016 INCHES MAXIMUM | | HEAD STYLE | OVAL COUNTERSUNK | | INTERNAL DRIVE STYLE | HIGH-TORQUE | | NOMINAL THREAD DIAMETER | 0.190 INCHES | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.381 INCHES MINIMUM AND 0.431 INCHES MAXIMUM | | THREAD QUANTITY PER INCH | 32 | | THREAD SERIES DESIGNATOR | UNIFIED NATIONAL JOINT FINE (UNJF) |
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