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National Stock Number:
5305-01-303-5636
Federal Supply Class:
5305
National Item Identification Number:
013035636
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:
| 124894-3-14 | 80539 | SPS TECHNOLOGIES, LLC | | 3M939-3-14 | 0ZC92 | HEARTLAND PRECISION FASTENERS INC | | 3M939-3-14 | 1EM77 | B & B SPECIALTIES INC | | 3M939-3-14 | 1VSL7 | HOUSTON PRECISION FASTENERS I LP | | 3M939-3-14 | 56878 | SPS TECHNOLOGIES, LLC | | 3M939-3-14 | 58998 | FASTENER INNOVATION TECHNOLOGY, INC. | | AIC939-3-14 | 06725 | SPS TECHNOLOGIES, LLC | | AIC939-3-14P | 06725 | SPS TECHNOLOGIES, LLC | | SC1823-3-14 | 06950 | HOWMET GLOBAL FASTENING SYSTEMS INC | | GS1018-3-14 | 1EM77 | B & B SPECIALTIES INC | | 3M939-3-14 | 60516 | WEST COAST AEROSPACE, INC. | | HR248-3-14PX | 73197 | HI-SHEAR CORPORATION | | 3M939-3-14 | 76301 | THE BOEING COMPANY | | HR248-3-14PX | L4528 | LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INC | | SC1823-3-14P | 06950 | HOWMET GLOBAL FASTENING SYSTEMS INC | | VT1731-3-14 | 92215 | HOWMET GLOBAL FASTENING SYSTEMS INC |
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Techincal Specification:
| COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM | | FASTENER LENGTH | 1.266 INCHES MINIMUM AND 1.296 INCHES MAXIMUM | | GRIP DIAMETER | 0.1890 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM | | GRIP LENGTH | 0.865 INCHES MINIMUM AND 0.885 INCHES MAXIMUM | | HEAD DIAMETER | 0.300 INCHES MINIMUM AND 0.302 INCHES MAXIMUM | | HEAD STYLE | OVAL COUNTERSUNK | | INTERNAL DRIVE STYLE | OFFSET CRUCIFORM (TORQUE SET) | | MATERIAL | NICKEL ALLOY 718 OVERALL | | MINIMUM TENSILE STRENGTH | 125000 POUNDS PER SQUARE INCH | | NOMINAL THREAD DIAMETER | 0.190 INCHES | | SURFACE TREATMENT | PASSIVATE OVERALL | | THREAD DIRECTION | RIGHT-HAND | | THREAD CLASS | 3A | | THREAD LENGTH | 0.381 INCHES MINIMUM AND 0.431 INCHES MAXIMUM | | THREAD SERIES DESIGNATOR | UNJF | | THREAD QUANTITY PER INCH | 32 |
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