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National Stock Number:
5305-01-334-3556
Federal Supply Class:
5305
National Item Identification Number:
013343556
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:
| 111395-3-3 | 80539 | SPS TECHNOLOGIES, LLC | | 1701-3-3 | 06725 | SPS TECHNOLOGIES, LLC | | AIC1701-3-3 | 06725 | SPS TECHNOLOGIES, LLC | | 5053-3-3 | 06950 | HOWMET GLOBAL FASTENING SYSTEMS INC | | FIT7884-3-3 | 58998 | FASTENER INNOVATION TECHNOLOGY, INC. | | 3D0080-3-3 | 88277 | THE BOEING COMPANY | | SC5053-3-3 | 06950 | HOWMET GLOBAL FASTENING SYSTEMS INC |
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Techincal Specification:
| COUNTERSINK ANGLE | 129.0 DEGREES MINIMUM AND 131.0 DEGREES MAXIMUM | | FASTENER LENGTH | 0.550 INCHES NOMINAL | | GRIP DIAMETER | 0.1890 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM | | GRIP LENGTH | 0.187 INCHES NOMINAL | | HEAD DIAMETER | 0.3206 INCHES NOMINAL | | HEAD HEIGHT | 0.047 INCHES MINIMUM AND 0.049 INCHES MAXIMUM | | HEAD STYLE | FLAT COUNTERSUNK | | INTERNAL DRIVE STYLE | OFFSET CRUCIFORM (TORQUE SET) | | MATERIAL | TITANIUM ALLOY OVERALL | | NOMINAL THREAD DIAMETER | 0.1900 INCHES | | PART NAME ASSIGNED BY CONTROLLING AGENCY | SCREW,MACHINE | | THREAD DIRECTION | RIGHT-HAND | | THREAD CLASS | 3A | | THREAD LENGTH | 0.363 INCHES NOMINAL | | THREAD SERIES DESIGNATOR | UNJF | | THREAD QUANTITY PER INCH | 32 |
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