NSN 5305-01-385-4603

Part Details | CLOSE TOLERANCE SCREW

5305-01-385-4603 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.

Alternate Parts: ST3M4554L241, ST3M455-4L24-1, HT4024L424, HT4024L4-24, HT4024L424, HT4024L4-24, ST3M4554L241, ST3M455-4L24-1, ST3M4554L241, ST3M455-4L24-1, ST3M4554L241, ST3M455-4L24-1, HT4024L424, HT4024L4-24, ST3M4554L241, ST3M455-4L24-1, HT4024L424, HT4024L4-24, HT4024L424, HT4024L4-24, HT4024L424, HT4024L4-24, 119074L241, 11907-4L24-1, HT4024L424, HT4024L4-24, HT4024L424, HT4024L4-24, HT4024L424, HT4024L4-24, HT4024L424, HT4024L4-24, HT4024L424, HT4024L4-24, HT4024L424, HT4024L4-24, ST3M4554L241, ST3M455-4L24-1, WC4024L424, WC4024L4-24, 5305-01-385-4603, 01-385-4603, 5305013854603, 013854603

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53JAN 12, 199401-385-460329294 ( SCREW, CLOSE TOLERANCE )
REFERENCE DRAWINGS & PICTURES

CROWNED HEXAGON

HIGH-TORQUE

Cross Reference | NSN 5305-01-385-4603
Part Number Cage Code Manufacturer
ST3M455-4L24-106950ARCONIC GLOBAL FASTENERS & RINGS,INC.
HT4024L4-2492215ARCONIC GLOBAL FASTENERS & RINGS,INC.
HT4024L4-2406950ARCONIC GLOBAL FASTENERS & RINGS,INC.
ST3M455-4L24-176301BOEING COMPANY, THEDBA BOEING
ST3M455-4L24-158998FASTENER INNOVATION TECHNOLOGY, INC.DBA F I T
ST3M455-4L24-10ZC92HEARTLAND PRECISION FASTENERS, INC.
HT4024L4-2473197HI-SHEAR CORPORATION
ST3M455-4L24-11VSL7HOUSTON PRECISION FASTENERS I, LP
HT4024L4-2417446HUCK INTERNATIONAL, INC.DBA ARCONIC FASTENING SYSTEMS AND
HT4024L4-2497928HUCK INTL INC
HT4024L4-24L4528LISI AEROSPACE CANADA CORPDIV HI SHEAR HOLDINGS INC
11907-4L24-159563REID PRODUCTS INC.DBA REID PRODUCTS
HT4024L4-240PTK6SPS TECHNOLOGIES INC
HT4024L4-24K5673SPS TECHNOLOGIES LTD TJ BROOKSDIVISION
HT4024L4-2456878SPS TECHNOLOGIES, LLCDBA AEROSPACE DIVISION
HT4024L4-2480539SPS TECHNOLOGIES, LLCDBA AEROSPACE FASTENERS GROUP
HT4024L4-2406725SPS TECHNOLOGIES, LLCDBA AIR INDUSTRIES
HT4024L4-2427624SPS TECHNOLOGIES, LLCDBA PB FASTENERS
ST3M455-4L24-106710VALLEY-TODECO, INC.DBA ARCONIC FASTENING SYSTEMS AND
WC4024L4-2460516WEST COAST AEROSPACE INC
Technical Data | NSN 5305-01-385-4603
Characteristic Specifications
THREAD SERIES DESIGNATOR UNJF
NOMINAL THREAD DIAMETER0.250 INCHES
THREAD QUANTITY PER INCH28
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.469 INCHES NOMINAL
FASTENER LENGTH1.954 INCHES MINIMUM AND 1.984 INCHES MAXIMUM
HEAD STYLE6 CROWNED HEXAGON
HEAD DIAMETER0.3898 INCHES MINIMUM AND 0.3948 INCHES MAXIMUM
HEAD HEIGHT0.070 INCHES MINIMUM AND 0.074 INCHES MAXIMUM
COUNTERSINK ANGLE99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
INTERNAL DRIVE STYLE HIGH-TORQUE
GRIP LENGTH1.490 INCHES MINIMUM AND 1.510 INCHES MAXIMUM
GRIP DIAMETER0.2490 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM