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National Stock Number:
5305-01-101-9439
Federal Supply Class:
5305
National Item Identification Number:
011019439
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:
| 11881C3-8D | 59563 | REID PRODUCTS INC. | | 3M925C3-8D | 58998 | FASTENER INNOVATION TECHNOLOGY, INC. | | HT4067-3-8 | 17446 | HUCK INTERNATIONAL, INC | | HT4067-3-8 | 56878 | SPS TECHNOLOGIES, LLC | | HT4067-3-8 | 73197 | HI-SHEAR CORPORATION | | 3M925C3-8D | 76301 | THE BOEING COMPANY | | HT4067-3-8D | 06950 | HOWMET GLOBAL FASTENING SYSTEMS INC | | HT4067-3-8D | 17446 | HUCK INTERNATIONAL, INC | | HT4067-3-8D | 73197 | HI-SHEAR CORPORATION | | HT4067-3-8D | 80539 | SPS TECHNOLOGIES, LLC | | HT4067-3-8 | 80539 | SPS TECHNOLOGIES, LLC | | HT4067-3-8 | 92215 | HOWMET GLOBAL FASTENING SYSTEMS INC | | HT4067-3-8 | 97928 | HUCK INTL INC | | HT4067-3-8D | K5673 | SPS TECHNOLOGIES LTD TJ BROOKS DIVISION | | WC4067-3-8D | 60516 | WEST COAST AEROSPACE, INC. | | HT4067-3-8D | L4528 | LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INC |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNJF | | NOMINAL THREAD DIAMETER | 0.190 INCHES | | THREAD QUANTITY PER INCH | 32 | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.381 INCHES MINIMUM AND | | 0.431 INCHES MAXIMUM | | FASTENER LENGTH | 0.891 INCHES MINIMUM AND | | 0.921 INCHES MAXIMUM | | MATERIAL | STEEL COMP XM-13 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | ALUMINUM AND | | CHROMATE OVERALL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-C-83488 TY 2 CL 3 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL | | HEAD STYLE | FLAT COUNTERSUNK UNDERCUT | | HEAD DIAMETER | 0.3765 INCHES MINIMUM AND | | 0.3813 INCHES MAXIMUM | | HEAD HEIGHT | 0.0439 INCHES MINIMUM AND | | 0.0459 INCHES MAXIMUM | | COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND | | 101.0 DEGREES MAXIMUM | | INTERNAL DRIVE STYLE | HIGH-TORQUE | | GRIP LENGTH | 0.490 INCHES MINIMUM AND | | 0.510 INCHES MAXIMUM | | GRIP DIAMETER | 0.1885 INCHES MINIMUM AND | | 0.1895 INCHES MAXIMUM | | SURFACE FINISH | 32.0 MICROINCHES GRIP | | 32.0 MICROINCHES THREADS |
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