NSN 5305-01-194-9139

Part Details | CLOSE TOLERANCE SCREW

5305-01-194-9139 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: ST3M4545L21, ST3M454-5L21, HT4025L521, HT4025L5-21, ST3M4545L21, ST3M454-5L21, ST3M4545L21, ST3M454-5L21, HT4025L521, HT4025L5-21, HT4025L521, HT4025L5-21, HT4025L521, HT4025L5-21, HT4025L521, HT4025L5-21, 119055L21, 11905-5L21, HT4025L521, HT4025L5-21, HT4025L521, HT4025L5-21, ST3M4545L21, ST3M454-5L21, 5305-01-194-9139, 01-194-9139, 5305011949139, 011949139

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53NOV 20, 198401-194-913929294 ( SCREW, CLOSE TOLERANCE )
REFERENCE DRAWINGS & PICTURES

HEXAGON COUNTERSUNK

HIGH-TORQUE

Cross Reference | NSN 5305-01-194-9139
Part Number Cage Code Manufacturer
ST3M454-5L2106950ARCONIC GLOBAL FASTENERS & RINGS,INC.
HT4025L5-2192215ARCONIC GLOBAL FASTENERS & RINGS,INC.
ST3M454-5L2176301BOEING COMPANY, THEDBA BOEING
ST3M454-5L2158998FASTENER INNOVATION TECHNOLOGY, INC.DBA F I T
HT4025L5-2173197HI-SHEAR CORPORATION
HT4025L5-2117446HUCK INTERNATIONAL, INC.DBA ARCONIC FASTENING SYSTEMS AND
HT4025L5-2197928HUCK INTL INC
HT4025L5-21L4528LISI AEROSPACE CANADA CORPDIV HI SHEAR HOLDINGS INC
11905-5L2159563REID PRODUCTS INC.DBA REID PRODUCTS
HT4025L5-2156878SPS TECHNOLOGIES, LLCDBA AEROSPACE DIVISION
HT4025L5-2180539SPS TECHNOLOGIES, LLCDBA AEROSPACE FASTENERS GROUP
ST3M454-5L2160516WEST COAST AEROSPACE INC
Technical Data | NSN 5305-01-194-9139
Characteristic Specifications
THREAD SERIES DESIGNATOR UNJF
NOMINAL THREAD DIAMETER0.312 INCHES
THREAD QUANTITY PER INCH24
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.506 INCHES MINIMUM AND 0.556 INCHES MAXIMUM
FASTENER LENGTH1.828 INCHES MINIMUM AND 1.858 INCHES MAXIMUM
HEAD STYLE0 HEXAGON COUNTERSUNK
HEAD DIAMETER0.625 INCHES MINIMUM AND 0.635 INCHES MAXIMUM
COUNTERSINK ANGLE99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
INTERNAL DRIVE STYLE HIGH-TORQUE
GRIP LENGTH1.302 INCHES MINIMUM AND 1.322 INCHES MAXIMUM
GRIP DIAMETER0.3115 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM
SPECIAL FEATURESMIN 40 PERCENT OF NON-BEARING HEAD SURFACE COATED WITH WHITE PAINT COLOR NO. 37875 PER FED STD 595