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National Stock Number:
5305-01-310-9250
Federal Supply Class:
5305
National Item Identification Number:
013109250
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:
| AIC9535-8-8 | 06725 | SPS TECHNOLOGIES, LLC | | C9535-8-8 | 81755 | LOCKHEED MARTIN CORPORATION | | VT1696-8-8 | 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 | 1.294 INCHES NOMINAL | | GRIP LENGTH | 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM | | GRIP DIAMETER | 0.4985 INCHES MINIMUM AND 0.4995 INCHES MAXIMUM | | HEAD DIAMETER | 0.690 INCHES MINIMUM AND 0.710 INCHES MAXIMUM | | HEAD HEIGHT | 0.130 INCHES MINIMUM AND 0.143 INCHES MAXIMUM | | HEAD STYLE | FILLISTER COUNTERSUNK | | INTERNAL DRIVE STYLE | OFFSET CRUCIFORM (TORQUE SET) | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS6487 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL OVERALL | | MINIMUM TENSILE STRENGTH | 220000 POUNDS PER SQUARE INCH | | NOMINAL THREAD DIAMETER | 0.500 INCHES | | SINGLE SHEAR STRENGTH | 132000 POUNDS PER SQUARE INCH | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | NAS672 ASSN STD SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | CADMIUM OVERALL | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.779 INCHES MINIMUM AND 0.809 INCHES MAXIMUM | | THREAD QUANTITY PER INCH | 20 | | THREAD SERIES DESIGNATOR | UNJF |
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