NSN 5305-01-373-8725

Part Details | CLOSE TOLERANCE SCREW

5305-01-373-8725 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: ST3M4557L27, ST3M455-7L27, ST3M455, ST3M4557L27, ST3M455-7L27, ST3M4557L27, ST3M455-7L27, ST3M4557L27, ST3M455-7L27, ST3M4557L27, ST3M455-7L27, 119077L27, 11907-7L27, ST3M4557L27, ST3M455-7L27, ST3M4557L27, ST3M455-7L27, ST3M4557L27, ST3M455-7L27, 5305-01-373-8725, 01-373-8725, 5305013738725, 013738725

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53APR 11, 199301-373-872529294 ( SCREW, CLOSE TOLERANCE )
REFERENCE DRAWINGS & PICTURES

HEXAGON COUNTERSUNK

HIGH-TORQUE

Cross Reference | NSN 5305-01-373-8725
Part Number Cage Code Manufacturer
ST3M455-7L2706950ARCONIC GLOBAL FASTENERS & RINGS,INC.
ST3M45576301BOEING COMPANY, THEDBA BOEING
ST3M455-7L2776301BOEING COMPANY, THEDBA BOEING
ST3M455-7L2773197HI-SHEAR CORPORATION
ST3M455-7L2717446HUCK INTERNATIONAL, INC.DBA ARCONIC FASTENING SYSTEMS AND
ST3M455-7L27L4528LISI AEROSPACE CANADA CORPDIV HI SHEAR HOLDINGS INC
11907-7L2759563REID PRODUCTS INC.DBA REID PRODUCTS
ST3M455-7L270PTK6SPS TECHNOLOGIES INC
ST3M455-7L27K5673SPS TECHNOLOGIES LTD TJ BROOKSDIVISION
ST3M455-7L2780539SPS TECHNOLOGIES, LLCDBA AEROSPACE FASTENERS GROUP
Technical Data | NSN 5305-01-373-8725
Characteristic Specifications
THREAD SERIES DESIGNATOR UNJF
NOMINAL THREAD DIAMETER0.4375 INCHES
THREAD QUANTITY PER INCH20
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.556 INCHES MINIMUM AND 0.656 INCHES MAXIMUM
FASTENER LENGTH2.234 INCHES MINIMUM AND 2.354 INCHES MAXIMUM
HEAD STYLE0 HEXAGON COUNTERSUNK
HEAD DIAMETER0.612 INCHES MINIMUM AND 0.672 INCHES MAXIMUM
COUNTERSINK ANGLE100.0 RADIANS NOMINAL
INTERNAL DRIVE STYLE HIGH-TORQUE
GRIP LENGTH1.678 INCHES MINIMUM AND 1.698 INCHES MAXIMUM
GRIP DIAMETER0.4365 INCHES MINIMUM AND 0.4370 INCHES MAXIMUM