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National Stock Number:
5305-01-193-6863
Federal Supply Class:
5305
National Item Identification Number:
011936863
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:
| HT4049-3-10 | 06950 | HOWMET GLOBAL FASTENING SYSTEMS INC | | HT4049-3-10 | 17446 | HUCK INTERNATIONAL, INC | | HT4049-3-10 | 73197 | HI-SHEAR CORPORATION | | HT4049-3-10 | 80539 | SPS TECHNOLOGIES, LLC | | HT4049-3-10 | 92215 | HOWMET GLOBAL FASTENING SYSTEMS INC | | HT4049-3-10 | 97928 | HUCK INTL INC | | ST3M714-3-10 | 17446 | HUCK INTERNATIONAL, INC | | ST3M714-3-10 | 58998 | FASTENER INNOVATION TECHNOLOGY, INC. | | ST3M714-3-10 | 60516 | WEST COAST AEROSPACE, INC. | | WC4049-3-10 | 60516 | WEST COAST AEROSPACE, INC. | | ST3M714-3-10 | 76301 | THE BOEING COMPANY | | ST3M714-3-10 | K5673 | SPS TECHNOLOGIES LTD TJ BROOKS DIVISION | | HT4049-3-10 | 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 | 0.886 INCHES MINIMUM AND 0.916 INCHES MAXIMUM | | GRIP DIAMETER | 0.1890 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM | | GRIP LENGTH | 0.615 INCHES MINIMUM AND 0.635 INCHES MAXIMUM | | HEAD DIAMETER | 0.376 INCHES MINIMUM AND 0.385 INCHES MAXIMUM | | HEAD STYLE | FLAT COUNTERSUNK | | INTERNAL DRIVE STYLE | HIGH-TORQUE | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP XM-13 OVERALL | | NOMINAL THREAD DIAMETER | 0.190 INCHES | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | PASSIVATE OVERALL | | THREAD DIRECTION | RIGHT-HAND | | THREAD CLASS | 3A | | THREAD LENGTH | 0.251 INCHES MINIMUM AND 0.301 INCHES MAXIMUM | | THREAD SERIES DESIGNATOR | UNJF | | THREAD QUANTITY PER INCH | 32 |
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