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National Stock Number:
5305-01-380-7178
Federal Supply Class:
5305
National Item Identification Number:
013807178
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:
| 121754-6-30 | 80539 | SPS TECHNOLOGIES, LLC | | 5306-007-6-30 | S7549 | AIDC/AEROSPACE INDUSTRIAL DEVELOPMENT CORP. | | AIC9535-6-30 | 06725 | SPS TECHNOLOGIES, LLC | | VT1696-6-30 | 06950 | HOWMET GLOBAL FASTENING SYSTEMS INC | | PBF1198-6-30 | 27624 | SPS TECHNOLOGIES LLC | | VT1696-6-30 | 92215 | HOWMET GLOBAL FASTENING SYSTEMS INC |
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Techincal Specification:
| COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM | | CRITICALITY CODE JUSTIFICATION | ANEE AND AAUR | | FASTENER LENGTH | 2.445 INCHES NOMINAL | | GRIP DIAMETER | 0.3735 INCHES MINIMUM AND 0.3745 INCHES MAXIMUM | | GRIP LENGTH | 1.865 INCHES MINIMUM AND 1.895 INCHES MAXIMUM | | HEAD DIAMETER | 0.525 INCHES MINIMUM AND 0.770 INCHES MAXIMUM | | HEAD HEIGHT | 0.102 INCHES NOMINAL | | HEAD STYLE | FILLISTER COUNTERSUNK | | INTERNAL DRIVE STYLE | OFFSET CRUCIFORM (TORQUE SET) | | MINIMUM TENSILE STRENGTH | 220000 POUNDS PER SQUARE INCH | | NOMINAL THREAD DIAMETER | 0.375 INCHES | | SINGLE SHEAR STRENGTH | 132000 POUNDS PER SQUARE INCH | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.570 INCHES NOMINAL | | THREAD SERIES DESIGNATOR | UNF | | THREAD QUANTITY PER INCH | 24 |
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