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National Stock Number:
5305-01-089-3144
Federal Supply Class:
5305
National Item Identification Number:
010893144
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:
| 10115000 | A486G | NIMIKKEISTOKESKUS NCB FINLAND | | 11931-3-6 | 59563 | REID PRODUCTS INC. | | HT4049-3-6 | 06725 | SPS TECHNOLOGIES, LLC | | HT4049-3-6 | 06950 | HOWMET GLOBAL FASTENING SYSTEMS INC | | HT4049-3-6 | 17446 | HUCK INTERNATIONAL, INC | | HT4049-3-6 | 27624 | SPS TECHNOLOGIES LLC | | ST3M714-3-6 | 007R1 | TWIST TITE MFG, INC | | HT4049-3-6 | 56878 | SPS TECHNOLOGIES, LLC | | HT4049-3-6 | 73197 | HI-SHEAR CORPORATION | | HT4049-3-6 | 80539 | SPS TECHNOLOGIES, LLC | | HT4049-3-6 | 92215 | HOWMET GLOBAL FASTENING SYSTEMS INC | | HT4049-3-6 | 97928 | HUCK INTL INC | | HT4049-3-6 | K5673 | SPS TECHNOLOGIES LTD TJ BROOKS DIVISION | | HT4049-3-6 | L4528 | LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INC | | ST3M714-3-6 | 06710 | VALLEY-TODECO, INC. | | ST3M714-3-6 | 0ZC92 | HEARTLAND PRECISION FASTENERS INC | | ST3M714-3-6 | 1VSL7 | HOUSTON PRECISION FASTENERS I LP | | ST3M714-3-6 | 58998 | FASTENER INNOVATION TECHNOLOGY, INC. | | WC4049-3-6 | 60516 | WEST COAST AEROSPACE, INC. | | ST3M714-3-6 | 76301 | THE BOEING COMPANY |
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Techincal Specification:
| COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM | | FASTENER LENGTH | 0.636 INCHES MINIMUM AND 0.666 INCHES MAXIMUM | | GRIP LENGTH | 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM | | GRIP DIAMETER | 0.1890 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM | | HEAD DIAMETER | 0.376 INCHES MINIMUM AND 0.385 INCHES MAXIMUM | | HEAD STYLE | FLAT COUNTERSUNK | | INTERNAL DRIVE STYLE | HIGH-TORQUE | | MATERIAL DOCUMENT AND CLASSIFICATION | 23-112 TYPE C,FSCM 76301 MFR REF SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL CORROSION RESISTING OVERALL | | NOMINAL THREAD DIAMETER | 0.190 INCHES | | SURFACE TREATMENT | PASSIVATE OVERALL | | THREAD CLASS | 3A | | THREAD LENGTH | 0.251 INCHES MINIMUM AND 0.301 INCHES MAXIMUM | | THREAD DIRECTION | RIGHT-HAND | | THREAD QUANTITY PER INCH | 32 | | THREAD SERIES DESIGNATOR | UNJF |
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