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National Stock Number:
5305-01-308-0170
Federal Supply Class:
5305
National Item Identification Number:
013080170
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:
| 110179-3-4ASM | 80539 | SPS TECHNOLOGIES, LLC | | 110179-3-4ASM | K5673 | SPS TECHNOLOGIES LTD TJ BROOKS DIVISION | | BM33024V3-4M | 17446 | HUCK INTERNATIONAL, INC | | BM33024V3-4UM | 17446 | HUCK INTERNATIONAL, INC | | BM33024V3-4UM | 72914 | GRIMES AEROSPACE COMPANY | | BM33024V3-4M | 97928 | HUCK INTL INC | | HT8137-3-4ASM | 06950 | HOWMET GLOBAL FASTENING SYSTEMS INC | | ST3M430V3-4ASM | 1VSL7 | HOUSTON PRECISION FASTENERS I LP | | ST3M430V3-4ASM | 58998 | FASTENER INNOVATION TECHNOLOGY, INC. | | HT271A3-4M | 73197 | HI-SHEAR CORPORATION | | ST3M430V3-4ASM | 76301 | THE BOEING COMPANY | | STM430V3-4ASM | 76301 | THE BOEING COMPANY | | HT8137-3-4ASM | 92215 | HOWMET GLOBAL FASTENING SYSTEMS INC | | HT271A3-4M | L4528 | LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INC | | WC8137-3-4AM | 60516 | WEST COAST AEROSPACE, INC. |
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Techincal Specification:
| COUNTERSINK ANGLE | 100.0 DEGREES NOMINAL | | FASTENER LENGTH | 0.640 INCHES MINIMUM AND 0.687 INCHES MAXIMUM | | FEATURES PROVIDED | O RING AND DRY FILM LUBRICANT AND CETYL ALCOHOL LUBRICANT | | GRIP DIAMETER | 0.1890 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM | | GRIP LENGTH | 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM | | HEAD DIAMETER | 0.376 INCHES MINIMUM AND 0.381 INCHES MAXIMUM | | HEAD HEIGHT | 0.044 INCHES MINIMUM AND 0.046 INCHES MAXIMUM | | HEAD STYLE | FLAT COUNTERSUNK UNDERCUT | | INTERNAL DRIVE STYLE | HIGH-TORQUE | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 4967 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | TITANIUM ALLOY UNS R56400 OVERALL | | NOMINAL THREAD DIAMETER | 0.190 INCHES | | SURFACE FINISH | 32.0 MICROINCHES GRIP | | SURFACE FINISH | 32.0 MICROINCHES THREADS | | THREAD DIRECTION | RIGHT-HAND | | THREAD CLASS | 3A | | THREAD LENGTH | 0.380 INCHES MINIMUM AND 0.447 INCHES MAXIMUM | | THREAD SERIES DESIGNATOR | UNJF | | THREAD QUANTITY PER INCH | 32 |
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