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National Stock Number:
5305-01-050-3830
Federal Supply Class:
5305
National Item Identification Number:
010503830
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:
| 11909V8L10M1 | 59563 | REID PRODUCTS INC. | | HT4028L8-10M | 06950 | HOWMET GLOBAL FASTENING SYSTEMS INC | | HT4028L8-10M | 17446 | HUCK INTERNATIONAL, INC | | HT4028L8-10M | 73197 | HI-SHEAR CORPORATION | | HT4028L8-10M | 80539 | SPS TECHNOLOGIES, LLC | | HT4028L8-10M | 92215 | HOWMET GLOBAL FASTENING SYSTEMS INC | | ST3M466V8L10M1 | 56878 | SPS TECHNOLOGIES, LLC | | ST3M466V8L10M1 | 60516 | WEST COAST AEROSPACE, INC. | | ST3M466V8L10M1 | 76301 | THE BOEING COMPANY | | ST3M466V8L10M1 | 92215 | HOWMET GLOBAL FASTENING SYSTEMS INC | | HT4028L8-10M | 97928 | HUCK INTL INC | | ST3M466V8L10M1 | K5673 | SPS TECHNOLOGIES LTD TJ BROOKS DIVISION | | HT4028L8-10M | L4528 | LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INC |
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Techincal Specification:
| COUNTERSINK ANGLE | 100.0 DEGREES NOMINAL | | FASTENER LENGTH | 1.391 INCHES MINIMUM AND 1.421 INCHES MAXIMUM | | GRIP LENGTH | 0.615 INCHES MINIMUM AND 0.635 INCHES MAXIMUM | | GRIP DIAMETER | 0.4990 INCHES MINIMUM AND 0.4995 INCHES MAXIMUM | | HEAD DIAMETER | 0.747 INCHES MINIMUM AND 0.752 INCHES MAXIMUM | | HEAD STYLE | OVAL COUNTERSUNK | | INTERNAL DRIVE STYLE | HIGH-TORQUE | | MATERIAL | TITANIUM ALLOY OVERALL | | MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH | | NOMINAL THREAD DIAMETER | 0.500 INCHES | | SPECIAL FEATURES | DRY FILM LUBRICANT P.S. 18021 CL 1 | | SPECIFICATION/STANDARD DATA | 76301-ST3-466 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD | | SURFACE FINISH | 32.0 MICROINCHES BEARING SURFACE OF HEAD | | SURFACE FINISH | 32.0 MICROINCHES GRIP | | THREAD DIRECTION | RIGHT-HAND | | THREAD CLASS | 3A | | THREAD LENGTH | 0.756 INCHES MINIMUM AND 0.806 INCHES MAXIMUM | | THREAD SERIES DESIGNATOR | UNJF | | THREAD QUANTITY PER INCH | 20 |
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