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National Stock Number:
5305-01-500-8224
Federal Supply Class:
5305
National Item Identification Number:
015008224
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:
| 11827C4-32A | 59563 | REID PRODUCTS INC. | | 11827D4-32A | 59563 | REID PRODUCTS INC. | | 3M1169C4-32A | 007R1 | TWIST TITE MFG, INC | | HP1169D4-32 | 0ZC92 | HEARTLAND PRECISION FASTENERS INC | | 3M1169C4-32A | 76301 | THE BOEING COMPANY | | 3M1169D4-32A | 76301 | THE BOEING COMPANY | | TX1026C4-32A | 06710 | VALLEY-TODECO, INC. | | TX1026C4-32A | 06725 | SPS TECHNOLOGIES, LLC | | TX1026C4-32A | 06950 | HOWMET GLOBAL FASTENING SYSTEMS INC | | TX1026C4-32A | 0ZC92 | HEARTLAND PRECISION FASTENERS INC | | TX1026C4-32A | 17446 | HUCK INTERNATIONAL, INC | | TX1026C4-32A | 1EM77 | B & B SPECIALTIES INC | | TX1026C4-32A | 1VSL7 | HOUSTON PRECISION FASTENERS I LP | | TX1026C4-32A | 27624 | SPS TECHNOLOGIES LLC | | TX1026D4-32A | 06725 | SPS TECHNOLOGIES, LLC | | TX1026D4-32A | 06950 | HOWMET GLOBAL FASTENING SYSTEMS INC | | TX1026D4-32A | 0PTK6 | SPS TECHNOLOGIES INC | | TX1026D4-32A | 27624 | SPS TECHNOLOGIES LLC | | TX1026D4-32A | 56878 | SPS TECHNOLOGIES, LLC | | TX1026C4-32A | 56878 | SPS TECHNOLOGIES, LLC | | TX1026C4-32A | 58998 | FASTENER INNOVATION TECHNOLOGY, INC. | | TX1026C4-32A | 59563 | REID PRODUCTS INC. | | TX1026C4-32A | 60516 | WEST COAST AEROSPACE, INC. | | TX1026C4-32A | 73197 | HI-SHEAR CORPORATION | | TX1026D4-32A | 73197 | HI-SHEAR CORPORATION | | TX1026D4-32A | 80539 | SPS TECHNOLOGIES, LLC | | TX1026C4-32A | 80539 | SPS TECHNOLOGIES, LLC | | TX1026C4-32A | 92215 | HOWMET GLOBAL FASTENING SYSTEMS INC |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNJF | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | THREAD QUANTITY PER INCH | 28 | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.750 INCHES NOMINAL | | FASTENER LENGTH | 2.000 INCHES NOMINAL | | MATERIAL | STEEL CORROSION RESISTING OVERALL | | HEAD STYLE | FILLISTER COUNTERSUNK | | HEAD DIAMETER | 0.470 INCHES MINIMUM AND | | 0.477 INCHES MAXIMUM | | HEAD HEIGHT | 0.015 INCHES NOMINAL | | COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND | | 101.0 DEGREES MAXIMUM | | INTERNAL DRIVE STYLE | TORX | | SPLINE MAJOR DIAMETER | 0.221 INCHES NOMINAL | | GRIP LENGTH | 1.250 INCHES NOMINAL | | GRIP DIAMETER | 0.2490 INCHES MINIMUM AND | | 0.2495 INCHES MAXIMUM | | SPECIAL FEATURES | SPECIFIC MATL IS INCONEL 718 CRES | | CRITICALITY CODE JUSTIFICATION | AAUR |
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