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National Stock Number:
5305-01-510-6782
Federal Supply Class:
5305
National Item Identification Number:
015106782
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:
| 11827V4-30A | 59563 | REID PRODUCTS INC. | | 3M1169V4-30A | 76301 | THE BOEING COMPANY | | TX1026V4-30A | 06725 | SPS TECHNOLOGIES, LLC | | TX1026V4-30A | 06950 | HOWMET GLOBAL FASTENING SYSTEMS INC | | TX1026V4-30A | 0PTK6 | SPS TECHNOLOGIES INC | | GS1006V4-30A | 1EM77 | B & B SPECIALTIES INC | | TX1026V4-30A | 27624 | SPS TECHNOLOGIES LLC | | TX1026V4-30A | 56878 | SPS TECHNOLOGIES, LLC | | TX1026V4-30A | 73197 | HI-SHEAR CORPORATION | | TX1026V4-30A | 80539 | SPS TECHNOLOGIES, LLC | | TX1026V4-30A | C4293 | ALCOA FASTENING SYSTEMS FAIRCHILDFASTENERS EUROPE - VSD GMBH | | TX1026V4-30A | 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 | 2.220 INCHES NOMINAL | | GRIP DIAMETER | 0.249 INCHES NOMINAL | | GRIP LENGTH | 1.875 INCHES NOMINAL | | HEAD DIAMETER | 0.470 INCHES MINIMUM AND 0.477 INCHES MAXIMUM | | HEAD STYLE | FLAT COUNTERSUNK | | INTERNAL DRIVE STYLE | TORX | | MATERIAL DOCUMENT AND CLASSIFICATION | NAS4004 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | TITANIUM ALLOY OVERALL | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | SPLINE MAJOR DIAMETER | 0.220 INCHES MINIMUM AND 0.223 INCHES MAXIMUM | | THREAD DIRECTION | RIGHT-HAND | | THREAD CLASS | 3A | | THREAD LENGTH | 0.345 INCHES NOMINAL | | THREAD SERIES DESIGNATOR | UNJF | | THREAD QUANTITY PER INCH | 28 |
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