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National Stock Number:
5305-01-473-8515
Federal Supply Class:
5305
National Item Identification Number:
014738515
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:
| 11853D3-9-7A | 59563 | REID PRODUCTS INC. | | 3M1262D3-9-7A | 76301 | THE BOEING COMPANY | | TX1024D3-9-7A | 06725 | SPS TECHNOLOGIES, LLC | | TX1024D3-9-7A | 0PTK6 | SPS TECHNOLOGIES INC | | HP1262D3-9-7 | 0ZC92 | HEARTLAND PRECISION FASTENERS INC | | TX1024D3-9-7A | 27624 | SPS TECHNOLOGIES LLC |
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Techincal Specification:
| THREAD LENGTH | 0.437 INCHES NOMINAL | | THREAD QUANTITY PER INCH | 32 | | THREAD SERIES DESIGNATOR | UNJF | | COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM | | FASTENER LENGTH | 0.985 INCHES MINIMUM AND 1.015 INCHES MAXIMUM | | GRIP LENGTH | 0.552 INCHES MINIMUM AND 0.572 INCHES MAXIMUM | | GRIP DIAMETER | 0.1885 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM | | HEAD DIAMETER | 0.265 INCHES MINIMUM AND 0.293 INCHES MAXIMUM | | HEAD HEIGHT | 0.049 INCHES NOMINAL | | HEAD STYLE | FLAT COUNTERSUNK UNDERCUT | | NOMINAL THREAD DIAMETER | 0.190 INCHES | | INTERNAL DRIVE STYLE | OFFSET CRUCIFORM (TORQUE SET) | | MATERIAL | STEEL COMP XM-13 OVERALL | | SINGLE SHEAR STRENGTH | 125000 POUNDS PER SQUARE INCH | | SURFACE TREATMENT | PASSIVATE OVERALL | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND |
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