NSN 5305-00-308-1806

Part Details | CLOSE TOLERANCE SCREW

5305-00-308-1806 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: HT4028L79, HT4028L7-9, HT4028L79, HT4028L7-9, ST3M466V7L91, ST3M466V7L9-1, ST3M466V7L91, ST3M466V7L9-1, ST3M466V7L91, ST3M466V7L9-1, ST3M466V7L91, ST3M466V7L9-1, ST3M466V7L91, ST3M466V7L9-1, HT4028L79, HT4028L7-9, ST3M466V7L91, ST3M466V7L9-1, ST3M466V7L91, ST3M466V7L9-1, HT4028L79, HT4028L7-9, ST3M466V7L91, ST3M466V7L9-1, HT4028L79, HT4028L7-9, ST3M466V7L91, ST3M466V7L9-1, 11909V7L91, 11909V7L9-1, ST3M466V7L91, ST3M466V7L9-1, HT4028L79, HT4028L7-9, HT4028L79, HT4028L7-9, ST3M466V7L91, ST3M466V7L9-1, HT4028L79, HT4028L7-9, ST3M466V7L91, ST3M466V7L9-1, HT4028L79, HT4028L7-9, HT4028L79, HT4028L7-9, WC4028L79, WC4028L7-9, 5305-00-308-1806, 00-308-1806, 5305003081806, 003081806

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53OCT 21, 197300-308-180629294 ( SCREW, CLOSE TOLERANCE )
REFERENCE DRAWINGS & PICTURES

HEXAGON COUNTERSUNK

HIGH-TORQUE

Cross Reference | NSN 5305-00-308-1806
Part Number Cage Code Manufacturer
HT4028L7-992215ARCONIC GLOBAL FASTENERS & RINGS,INC.
HT4028L7-906950ARCONIC GLOBAL FASTENERS & RINGS,INC.
ST3M466V7L9-106950ARCONIC GLOBAL FASTENERS & RINGS,INC.
ST3M466V7L9-176301BOEING COMPANY, THEDBA BOEING
ST3M466V7L9-14WL75CAMCAR LLCDIV CAMCAR LLC
ST3M466V7L9-158998FASTENER INNOVATION TECHNOLOGY, INC.DBA F I T
ST3M466V7L9-10ZC92HEARTLAND PRECISION FASTENERS, INC.
HT4028L7-973197HI-SHEAR CORPORATION
ST3M466V7L9-173197HI-SHEAR CORPORATION
ST3M466V7L9-11VSL7HOUSTON PRECISION FASTENERS I, LP
HT4028L7-917446HUCK INTERNATIONAL, INC.DBA ARCONIC FASTENING SYSTEMS AND
ST3M466V7L9-117446HUCK INTERNATIONAL, INC.DBA ARCONIC FASTENING SYSTEMS AND
HT4028L7-997928HUCK INTL INC
ST3M466V7L9-1L4528LISI AEROSPACE CANADA CORPDIV HI SHEAR HOLDINGS INC
11909V7L9-159563REID PRODUCTS INC.DBA REID PRODUCTS
ST3M466V7L9-10K6Z0SATURN FASTENERS INCDIV ACUMENT
HT4028L7-9K5673SPS TECHNOLOGIES LTD TJ BROOKSDIVISION
HT4028L7-956878SPS TECHNOLOGIES, LLCDBA AEROSPACE DIVISION
ST3M466V7L9-156878SPS TECHNOLOGIES, LLCDBA AEROSPACE DIVISION
HT4028L7-980539SPS TECHNOLOGIES, LLCDBA AEROSPACE FASTENERS GROUP
ST3M466V7L9-180539SPS TECHNOLOGIES, LLCDBA AEROSPACE FASTENERS GROUP
HT4028L7-906725SPS TECHNOLOGIES, LLCDBA AIR INDUSTRIES
HT4028L7-927624SPS TECHNOLOGIES, LLCDBA PB FASTENERS
WC4028L7-960516WEST COAST AEROSPACE INC
Technical Data | NSN 5305-00-308-1806
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 LENGTH1.203 INCHES MINIMUM AND 1.233 INCHES MAXIMUM
MINIMUM TENSILE STRENGTH160000 POUNDS PER SQUARE INCH
HEAD STYLE4 HEXAGON COUNTERSUNK
HEAD DIAMETER0.662 INCHES MINIMUM AND 0.668 INCHES MAXIMUM
COUNTERSINK ANGLE99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
INTERNAL DRIVE STYLE HIGH-TORQUE
GRIP LENGTH0.552 INCHES MINIMUM AND 0.572 INCHES MAXIMUM
GRIP DIAMETER0.4365 INCHES MINIMUM AND 0.4370 INCHES MAXIMUM