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National Stock Number:
5305-01-525-3903
Federal Supply Class:
5305
National Item Identification Number:
015253903
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:
| 11845C3-3AF | 59563 | REID PRODUCTS INC. | | 3M1170C3-3AF | 007R1 | TWIST TITE MFG, INC | | 3M1170C3-3AF | 0K6Z0 | SATURN FASTENERS INC | | 3M1170C3-3AF | 0ZC92 | HEARTLAND PRECISION FASTENERS INC | | 3M1170C3-3AF | 76301 | THE BOEING COMPANY | | TX1027C3-3AF | 06725 | SPS TECHNOLOGIES, LLC | | TX1027C3-3AF | 06950 | HOWMET GLOBAL FASTENING SYSTEMS INC | | TX1027C3-3AF | 0PTK6 | SPS TECHNOLOGIES INC | | TX1027C3-3AF | 17446 | HUCK INTERNATIONAL, INC | | TX1027C3-3AF | 27624 | SPS TECHNOLOGIES LLC | | TX1027C3-3AF | 56878 | SPS TECHNOLOGIES, LLC | | TX1027C3-3AF | 73197 | HI-SHEAR CORPORATION | | TX1027C3-3AF | 80539 | SPS TECHNOLOGIES, LLC | | TX1027C3-3AF | C4293 | ALCOA FASTENING SYSTEMS FAIRCHILDFASTENERS EUROPE - VSD GMBH | | TX1027C3-3AF | L4528 | LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INC |
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Techincal Specification:
| COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM | | CRITICALITY CODE JUSTIFICATION | AGAV | | FASTENER LENGTH | 0.5175 INCHES MINIMUM AND 0.5475 INCHES MAXIMUM | | GRIP DIAMETER | 0.1885 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM | | GRIP LENGTH | 0.1775 INCHES MINIMUM AND 0.1975 INCHES MAXIMUM | | HEAD DIAMETER | 0.265 INCHES MINIMUM AND 0.272 INCHES MAXIMUM | | HEAD STYLE | FLAT COUNTERSUNK | | INTERNAL DRIVE STYLE | TORX | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5662, INCONEL 718 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | NICKEL ALLOY 718 OVERALL | | NOMINAL THREAD DIAMETER | 0.190 INCHES | | SPECIAL FEATURES | FINISH ALSO TREATED WITH CETYL ALCOHOL PER MIL-L-87132, TY I, GRADE B | | SPLINE MAJOR DIAMETER | 0.1540 INCHES MINIMUM AND 0.1560 INCHES MAXIMUM | | SPLINE MINOR DIAMETER | 0.1105 INCHES MINIMUM AND 0.1125 INCHES MAXIMUM | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-C-83488, TY II, CLS 3 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | ALUMINUM OVERALL | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.345 INCHES NOMINAL | | THREAD SERIES DESIGNATOR | UNJF | | THREAD QUANTITY PER INCH | 32 |
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