NSN 5305-01-049-9139

Part Details | CLOSE TOLERANCE SCREW

5305-01-049-9139 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: HT4028L78M, HT4028L7-8M, HT4028L78M, HT4028L7-8M, ST3M466V7L8M1, HT4028L78M, HT4028L7-8M, ST3M466V7L8M1, HT402, HT4028L78M, HT4028L7-8M, 11909V7L8M1, HT4028L78M, HT4028L7-8M, HT4028L78M, HT4028L7-8M, 5305-01-049-9139, 01-049-9139, 5305010499139, 010499139

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53OCT 30, 197701-049-913929294 ( SCREW, CLOSE TOLERANCE )
REFERENCE DRAWINGS & PICTURES

HEXAGON COUNTERSUNK

HIGH-TORQUE

Cross Reference | NSN 5305-01-049-9139
Part Number Cage Code Manufacturer
HT4028L7-8M92215ARCONIC GLOBAL FASTENERS & RINGS,INC.
HT4028L7-8M06950ARCONIC GLOBAL FASTENERS & RINGS,INC.
ST3M466V7L8M176301BOEING COMPANY, THEDBA BOEING
HT4028L7-8M73197HI-SHEAR CORPORATION
ST3M466V7L8M117446HUCK INTERNATIONAL, INC.DBA ARCONIC FASTENING SYSTEMS AND
HT40297928HUCK INTL INC
HT4028L7-8ML4528LISI AEROSPACE CANADA CORPDIV HI SHEAR HOLDINGS INC
11909V7L8M159563REID PRODUCTS INC.DBA REID PRODUCTS
HT4028L7-8M56878SPS TECHNOLOGIES, LLCDBA AEROSPACE DIVISION
HT4028L7-8M80539SPS TECHNOLOGIES, LLCDBA AEROSPACE FASTENERS GROUP
Technical Data | NSN 5305-01-049-9139
Characteristic Specifications
THREAD SERIES DESIGNATOR UNJF
NOMINAL THREAD DIAMETER0.438 INCHES
THREAD QUANTITY PER INCH20
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.631 INCHES MINIMUM AND 0.681 INCHES MAXIMUM
FASTENER LENGTH1.141 INCHES MINIMUM AND 1.171 INCHES MAXIMUM
MINIMUM TENSILE STRENGTH160000 POUNDS PER SQUARE INCH
HEAD STYLE4 HEXAGON COUNTERSUNK
HEAD DIAMETER0.662 INCHES MINIMUM AND 0.668 INCHES MAXIMUM
COUNTERSINK ANGLE100.0 DEGREES NOMINAL
INTERNAL DRIVE STYLE HIGH-TORQUE
GRIP LENGTH0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM
GRIP DIAMETER0.4365 INCHES MINIMUM AND 0.4370 INCHES MAXIMUM
SPECIAL FEATURESDRY FILM LUBRICANT P.S. 18021 CL 1
SPECIFICATION/STANDARD DATA76301-ST3M466 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD