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National Stock Number:
5305-01-462-2840
Federal Supply Class:
5305
National Item Identification Number:
014622840
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:
| 11827V4-9A | 59563 | REID PRODUCTS INC. | | 3M1169V4-9A | 007R1 | TWIST TITE MFG, INC | | 3M1169V4-9A | 06710 | VALLEY-TODECO, INC. | | 3M1169V4-9A | 0K6Z0 | SATURN FASTENERS INC | | 3M1169V4-9A | 0ZC92 | HEARTLAND PRECISION FASTENERS INC | | 3M1169V4-9A | 1VSL7 | HOUSTON PRECISION FASTENERS I LP | | TX1026V4-9A | 06725 | SPS TECHNOLOGIES, LLC | | TX1026V4-9A | 06950 | HOWMET GLOBAL FASTENING SYSTEMS INC | | TX1026V4-9A | 0ZC92 | HEARTLAND PRECISION FASTENERS INC | | GS1006V4-9A | 1EM77 | B & B SPECIALTIES INC | | TX1026V4-9A | 27624 | SPS TECHNOLOGIES LLC | | TX1026V4-9A | 56878 | SPS TECHNOLOGIES, LLC | | 3M1169V4-9A | 58998 | FASTENER INNOVATION TECHNOLOGY, INC. | | 3M1169V4-9A | 76301 | THE BOEING COMPANY | | WC1169V4-9A | 60516 | WEST COAST AEROSPACE, INC. | | TX1026V4-9A | 72914 | GRIMES AEROSPACE COMPANY | | TX1026V4-9A | 73197 | HI-SHEAR CORPORATION | | TX1026V4-9A | 80539 | SPS TECHNOLOGIES, LLC | | TX1026V4-9A | 92215 | HOWMET GLOBAL FASTENING SYSTEMS INC | | TX1026V4-9A | C4293 | ALCOA FASTENING SYSTEMS FAIRCHILDFASTENERS EUROPE - VSD GMBH | | TX1026V4-9A | L4528 | LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS 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 | 0.425 INCHES NOMINAL | | FASTENER LENGTH | 0.973 INCHES MINIMUM AND | | 1.003 INCHES MAXIMUM | | MATERIAL | TITANIUM ALLOY OVERALL | | MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH | | HEAD STYLE | FLAT COUNTERSUNK UNDERCUT | | HEAD DIAMETER | 0.497 INCHES MINIMUM AND | | 0.507 INCHES MAXIMUM | | HEAD HEIGHT | 0.110 INCHES NOMINAL | | COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND | | 101.0 DEGREES MAXIMUM | | INTERNAL DRIVE STYLE | TORX | | SPLINE MINOR DIAMETER | 0.157 INCHES MINIMUM AND | | 0.160 INCHES MAXIMUM | | SPLINE MAJOR DIAMETER | 0.220 INCHES MINIMUM AND | | 0.223 INCHES MAXIMUM | | GRIP LENGTH | 0.563 INCHES NOMINAL | | GRIP DIAMETER | 0.249 INCHES MINIMUM AND | | 0.250 INCHES MAXIMUM | | PART NAME ASSIGNED BY CONTROLLING AGENCY | BOLT,100 DEGREE TENSION HEAD,GEAR DRIVE RECESS |
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