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National Stock Number:
5305-01-478-2862
Federal Supply Class:
5305
National Item Identification Number:
014782862
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:
| 11825-D4-23A | 59563 | REID PRODUCTS INC. | | 11845-D4-23A | 59563 | REID PRODUCTS INC. | | TX1027D4-23A | 06725 | SPS TECHNOLOGIES, LLC | | TX1027D4-23A | 06950 | HOWMET GLOBAL FASTENING SYSTEMS INC | | HP1170D4-23A | 0ZC92 | HEARTLAND PRECISION FASTENERS INC | | 3M1170-D4-23A | 76301 | THE BOEING COMPANY | | TX1027D4-23A | 0PTK6 | SPS TECHNOLOGIES INC | | TX1027D4-23A | 0ZC92 | HEARTLAND PRECISION FASTENERS INC | | TX1027D4-23A | 27624 | SPS TECHNOLOGIES LLC | | TX1027D4-23A | 56878 | SPS TECHNOLOGIES, LLC | | TX1027D4-23A | 73197 | HI-SHEAR CORPORATION | | TX1027D4-23A | 80539 | SPS TECHNOLOGIES, LLC | | TX1027D4-23A | C4293 | ALCOA FASTENING SYSTEMS FAIRCHILDFASTENERS EUROPE - VSD GMBH | | TX1027D4-23A | 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 | 1.427 INCHES MINIMUM AND 1.447 INCHES MAXIMUM | | GRIP DIAMETER | 0.1890 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM | | GRIP LENGTH | 1.427 INCHES MINIMUM AND 1.447 INCHES MAXIMUM | | HEAD DIAMETER | 0.385 INCHES MINIMUM AND 0.394 INCHES MAXIMUM | | HEAD HEIGHT | 0.046 INCHES MAXIMUM | | HEAD STYLE | FLAT COUNTERSUNK | | INTERNAL DRIVE STYLE | TORX | | MATERIAL DOCUMENT AND CLASSIFICATION | PH13-8MOCRES MFR REF 1ST MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP XM-13 OVERALL | | MINIMUM TENSILE STRENGTH | 2200 POUNDS PER SQUARE INCH | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | SPLINE MAJOR DIAMETER | 0.154 INCHES MINIMUM AND 0.156 INCHES MAXIMUM | | THREAD DIRECTION | RIGHT-HAND | | THREAD CLASS | 3A | | THREAD LENGTH | 0.415 INCHES MINIMUM AND 0.435 INCHES MAXIMUM | | THREAD SERIES DESIGNATOR | UNJF | | THREAD QUANTITY PER INCH | 28 |
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