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National Stock Number:
5305-01-190-4589
Federal Supply Class:
5305
National Item Identification Number:
011904589
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:
| BACB30VF3K5 | 06725 | SPS TECHNOLOGIES, LLC | | BACB30VF3K5 | 06950 | HOWMET GLOBAL FASTENING SYSTEMS INC | | BACB30VF3K5 | 0PTK6 | SPS TECHNOLOGIES INC | | BACB30VF3K5 | 17446 | HUCK INTERNATIONAL, INC | | BACB30VF3K5 | 1RC86 | HOWMET GLOBAL FASTENING SYSTEMS INC | | BACB30VF3K5 | 56878 | SPS TECHNOLOGIES, LLC | | BACB30VF3K5 | 73197 | HI-SHEAR CORPORATION | | BACB30VF3K5 | 80539 | SPS TECHNOLOGIES, LLC | | BACB30VF3K5 | 81205 | THE BOEING COMPANY | | BACB30VF3K5 | 97928 | HUCK INTL INC | | BACB30VF3K5 | L4528 | LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INC | | BACB30VF3K5 | Z03F0 | BOEING DEFENCE AUSTRALIA LTD | | BACB30VF3K5 | Z8T75 | BOEING DEFENCE AUSTRALIA LTD |
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Techincal Specification:
| COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM | | FASTENER LENGTH | 0.625 INCHES MINIMUM AND 0.645 INCHES MAXIMUM | | GRIP LENGTH | 0.307 INCHES MINIMUM AND 0.317 INCHES MAXIMUM | | GRIP DIAMETER | 0.1885 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM | | HEAD DIAMETER | 0.271 INCHES MINIMUM AND 0.303 INCHES MAXIMUM | | HEAD STYLE | FLAT COUNTERSUNK | | INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1 | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 4928 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 4967 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | TITANIUM ALLOY OVERALL | | NOMINAL THREAD DIAMETER | 0.190 INCHES | | SPECIAL FEATURES | BLACK DYE OR PAINT ON THREAD END | | SURFACE FINISH | 32.0 MICROINCHES GRIP | | SURFACE FINISH | 32.0 MICROINCHES THREADS | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | BMS 10-85,TYPE 1,FSCM 81205 MFR REF SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | ALUMINUM OVERALL | | THREAD CLASS | 3A | | THREAD LENGTH | 0.308 INCHES MINIMUM AND 0.338 INCHES MAXIMUM | | THREAD DIRECTION | RIGHT-HAND | | THREAD QUANTITY PER INCH | 32 | | THREAD SERIES DESIGNATOR | UNJF |
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