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National Stock Number:
5305-01-473-8309
Federal Supply Class:
5305
National Item Identification Number:
014738309
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:
| 10167833 | A486G | NIMIKKEISTOKESKUS NCB FINLAND | | 11853C3-3-5A | 59563 | REID PRODUCTS INC. | | 3M1262C3-3-5A | 007R1 | TWIST TITE MFG, INC | | 3M1262C3-3-5A | 0K6Z0 | SATURN FASTENERS INC | | 3M1262C3-3-5A | 1EM77 | B & B SPECIALTIES INC | | 3M1262C3-3-5A | 58998 | FASTENER INNOVATION TECHNOLOGY, INC. | | TX1024C3-3-5A | 06725 | SPS TECHNOLOGIES, LLC | | TX1024C3-3-5A | 06950 | HOWMET GLOBAL FASTENING SYSTEMS INC | | TX1024C3-3-5A | 0PTK6 | SPS TECHNOLOGIES INC | | HP1262C3-3-5 | 0ZC92 | HEARTLAND PRECISION FASTENERS INC | | TX1024C3-3-5A | 27624 | SPS TECHNOLOGIES LLC | | TX1024C3-3-5A | 56878 | SPS TECHNOLOGIES, LLC | | TX1024C3-3-5A | 73197 | HI-SHEAR CORPORATION | | 3M1262C3-3-5A | 76301 | THE BOEING COMPANY | | TX1024C3-3-5A | 80539 | SPS TECHNOLOGIES, LLC | | TX1024C3-3-5A | C4293 | ALCOA FASTENING SYSTEMS FAIRCHILDFASTENERS EUROPE - VSD GMBH | | TX1024C3-3-5A | L4528 | LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INC |
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Techincal Specification:
| COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM | | FASTENER LENGTH | 0.485 INCHES MINIMUM AND 0.515 INCHES MAXIMUM | | GRIP DIAMETER | 0.1885 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM | | GRIP LENGTH | 0.177 INCHES MINIMUM AND 0.197 INCHES MAXIMUM | | HEAD DIAMETER | 0.265 INCHES MINIMUM AND 0.293 INCHES MAXIMUM | | HEAD HEIGHT | 0.049 INCHES NOMINAL | | HEAD STYLE | FLAT COUNTERSUNK UNDERCUT | | INTERNAL DRIVE STYLE | OFFSET CRUCIFORM (TORQUE SET) | | MATERIAL | NICKEL ALLOY 718 OVERALL | | NOMINAL THREAD DIAMETER | 0.190 INCHES | | SINGLE SHEAR STRENGTH | 125000 POUNDS PER SQUARE INCH | | SURFACE TREATMENT | PASSIVATE OVERALL | | THREAD DIRECTION | RIGHT-HAND | | THREAD CLASS | 3A | | THREAD LENGTH | 0.312 INCHES NOMINAL | | THREAD SERIES DESIGNATOR | UNJF | | THREAD QUANTITY PER INCH | 32 |
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