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National Stock Number:
5305-01-128-5123
Federal Supply Class:
5305
National Item Identification Number:
011285123
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:
| 10115171 | A486G | NIMIKKEISTOKESKUS NCB FINLAND | | 110179-6-17AS | 80539 | SPS TECHNOLOGIES, LLC | | BM33024V6-17U | 17446 | HUCK INTERNATIONAL, INC | | HT4020-6-17A | 17446 | HUCK INTERNATIONAL, INC | | 11925C6-17A | 59563 | REID PRODUCTS INC. | | HT4020-6-17A | 73197 | HI-SHEAR CORPORATION | | HT8137-6-17AS | 06950 | HOWMET GLOBAL FASTENING SYSTEMS INC | | ST3M430V6-17AS | 58998 | FASTENER INNOVATION TECHNOLOGY, INC. | | ST3M430V6-17AS | 76301 | THE BOEING COMPANY | | ST3M652C6-17A | 76301 | THE BOEING COMPANY | | HT4020-6-17A | 80539 | SPS TECHNOLOGIES, LLC | | HT4020-6-17A | 92215 | HOWMET GLOBAL FASTENING SYSTEMS INC | | HT4020-6-17A | 97928 | HUCK INTL INC | | HT4020-6-17A | L4528 | LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INC | | WC8137-6-17A | 60516 | WEST COAST AEROSPACE, INC. |
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Techincal Specification:
| COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM | | FASTENER LENGTH | 1.687 INCHES MINIMUM AND 1.734 INCHES MAXIMUM | | GRIP LENGTH | 1.052 INCHES MINIMUM AND 1.072 INCHES MAXIMUM | | GRIP DIAMETER | 0.3740 INCHES MINIMUM AND 0.3745 INCHES MAXIMUM | | HEAD HEIGHT | 0.115 INCHES MINIMUM AND 0.117 INCHES MAXIMUM | | HEAD DIAMETER | 0.756 INCHES MINIMUM AND 0.760 INCHES MAXIMUM | | HEAD STYLE | FLAT COUNTERSUNK UNDERCUT | | INTERNAL DRIVE STYLE | HIGH-TORQUE | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP XM-13 OVERALL | | NOMINAL THREAD DIAMETER | 0.375 INCHES | | SPECIAL FEATURES | FURNISHED WITH ONE O-RING | | SURFACE FINISH | 32.0 MICROINCHES BEARING SURFACE OF HEAD | | SURFACE FINISH | 32.0 MICROINCHES GRIP | | SURFACE FINISH | 32.0 MICROINCHES THREADS | | SURFACE TREATMENT | PASSIVATE OVERALL | | THREAD DIRECTION | RIGHT-HAND | | THREAD CLASS | 3A | | THREAD LENGTH | 0.615 INCHES MINIMUM AND 0.682 INCHES MAXIMUM | | THREAD SERIES DESIGNATOR | UNJF | | THREAD QUANTITY PER INCH | 24 |
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