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National Stock Number:
5305-01-365-0407
Federal Supply Class:
5305
National Item Identification Number:
013650407
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:
| BACB30LR-3-24 | 56878 | SPS TECHNOLOGIES, LLC | | BACB30LR3-24 | 06710 | VALLEY-TODECO, INC. | | BACB30LR3-24 | 06725 | SPS TECHNOLOGIES, LLC | | BACB30LR3-24 | 06950 | HOWMET GLOBAL FASTENING SYSTEMS INC | | BACB30LR3-24 | 17419 | DEUTSCH CO THE | | BACB30LR3-24 | 17943 | FEDERAL MANUFACTURING CORP | | BACB30LR303-24 | 17943 | FEDERAL MANUFACTURING CORP | | BACB30LR3-24 | 1RC86 | HOWMET GLOBAL FASTENING SYSTEMS INC | | BACB30LR3-24 | 27624 | SPS TECHNOLOGIES LLC | | BACB30LR3-24 | 80539 | SPS TECHNOLOGIES, LLC | | BACB30LR3-24 | 81205 | THE BOEING COMPANY | | BACB30LR3-24 | 92215 | HOWMET GLOBAL FASTENING SYSTEMS INC |
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Techincal Specification:
| COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM | | FASTENER LENGTH | 1.485 INCHES MINIMUM AND 1.515 INCHES MAXIMUM | | GRIP DIAMETER | 0.1885 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM | | GRIP LENGTH | 1.490 INCHES MINIMUM AND 1.510 INCHES MAXIMUM | | HEAD DIAMETER | 0.337 INCHES MINIMUM AND 0.383 INCHES MAXIMUM | | HEAD STYLE | FLAT COUNTERSUNK | | INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1 | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | IRON ALLOY 660 OVERALL | | NOMINAL THREAD DIAMETER | 0.190 INCHES | | SURFACE FINISH | 32.0 MICROINCHES BEARING SURFACE OF HEAD32.0 MICROINCHES GRIP32.0 MICROINCHES THREADS | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416 TY 2 CL 2 FED SPEC ALL TREATMENT RESPONSES OVERALL | | SURFACE TREATMENT | CADMIUM AND CHROMATE OVERALL | | THREAD DIRECTION | RIGHT-HAND | | THREAD CLASS | 3A | | THREAD LENGTH | 0.345 INCHES NOMINAL | | THREAD SERIES DESIGNATOR | UNJF | | THREAD QUANTITY PER INCH | 32 |
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