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National Stock Number:
5305-01-507-9664
Federal Supply Class:
5305
National Item Identification Number:
015079664
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:
| HT4054-4DL19 | 06590 | APEX ENGINEERING PRODUCTS CORP | | HT4054-4DL19 | 17446 | HUCK INTERNATIONAL, INC | | HT4054-4DL19 | 1VSL7 | HOUSTON PRECISION FASTENERS I LP | | HT4054-4DL19 | 58998 | FASTENER INNOVATION TECHNOLOGY, INC. | | HT4054-4DL19 | 60516 | WEST COAST AEROSPACE, INC. | | HT4054-4DL19 | 73197 | HI-SHEAR CORPORATION | | ST3M730-4DL19 | 58998 | FASTENER INNOVATION TECHNOLOGY, INC. | | ST3M730-4DL19 | 76301 | THE BOEING COMPANY | | HT4054-4DL19 | 80539 | SPS TECHNOLOGIES, LLC | | HT4054-4DL19 | 97928 | HUCK INTL INC | | HT4054-4DL19 | 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 | 1.613 INCHES NOMINAL | | GRIP DIAMETER | 0.2485 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM | | HEAD DIAMETER | 0.464 INCHES MINIMUM | | HEAD STYLE | FLAT COUNTERSUNK | | HOLE DIAMETER | 0.076 INCHES MINIMUM AND 0.086 INCHES MAXIMUM | | HOLE QUANTITY | 1 | | HOLE TYPE | DRILLED | | INTERNAL DRIVE STYLE | HIGH-TORQUE | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-6049 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP 8740 OVERALL | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-C-83488, TYPE II CLASS 3 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | ALUMINUM OVERALL | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.425 INCHES NOMINAL | | THREAD SERIES DESIGNATOR | UNJF | | THREAD QUANTITY PER INCH | 28 |
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