NSN 5305-01-126-4721

Part Details | CLOSE TOLERANCE SCREW

5305-01-126-4721 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: HT40497D49, HT4049-7D49, HT40497D49, HT4049-7D49, ST3M7147D49, ST3M714-7D49, ST3M7147D49, ST3M714-7D49, ST3M7147D49, ST3M714-7D49, HT40497D49, HT4049-7D49, ST3M7147D49, ST3M714-7D49, HT40497D49, HT4049-7D49, HT40497D49, HT4049-7D49, HT40497D49, HT4049-7D49, 10115140, ST3M7147D49, ST3M714-7D49, ST3M7147D49, ST3M714-7D49, HT40497D49, HT4049-7D49, HT40497D49, HT4049-7D49, HT40497D49, HT4049-7D49, HT40497D49, HT4049-7D49, ST3M7147D49, ST3M714-7D49, ST3M7147D49, ST3M714-7D49, 5305-01-126-4721, 01-126-4721, 5305011264721, 011264721

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53FEB 11, 198201-126-472129294 ( SCREW, CLOSE TOLERANCE )
REFERENCE DRAWINGS & PICTURES

HEXAGON COUNTERSUNK

HIGH-TORQUE

Cross Reference | NSN 5305-01-126-4721
Part Number Cage Code Manufacturer
HT4049-7D4992215ARCONIC GLOBAL FASTENERS & RINGS,INC.
HT4049-7D4906950ARCONIC GLOBAL FASTENERS & RINGS,INC.
ST3M714-7D4976301BOEING COMPANY, THEDBA BOEING
ST3M714-7D4958998FASTENER INNOVATION TECHNOLOGY, INC.DBA F I T
ST3M714-7D490ZC92HEARTLAND PRECISION FASTENERS, INC.
HT4049-7D4973197HI-SHEAR CORPORATION
ST3M714-7D491VSL7HOUSTON PRECISION FASTENERS I, LP
HT4049-7D4917446HUCK INTERNATIONAL, INC.DBA ARCONIC FASTENING SYSTEMS AND
HT4049-7D4997928HUCK INTL INC
HT4049-7D49L4528LISI AEROSPACE CANADA CORPDIV HI SHEAR HOLDINGS INC
10115140A486GNIMIKKEISTOKESKUS NCB FINLAND
ST3M714-7D4959563REID PRODUCTS INC.DBA REID PRODUCTS
ST3M714-7D49K5673SPS TECHNOLOGIES LTD TJ BROOKSDIVISION
HT4049-7D4956878SPS TECHNOLOGIES, LLCDBA AEROSPACE DIVISION
HT4049-7D4980539SPS TECHNOLOGIES, LLCDBA AEROSPACE FASTENERS GROUP
HT4049-7D4906725SPS TECHNOLOGIES, LLCDBA AIR INDUSTRIES
HT4049-7D4927624SPS TECHNOLOGIES, LLCDBA PB FASTENERS
ST3M714-7D4906710VALLEY-TODECO, INC.DBA ARCONIC FASTENING SYSTEMS AND
ST3M714-7D4960516WEST COAST AEROSPACE INC
Technical Data | NSN 5305-01-126-4721
Characteristic Specifications
THREAD SERIES DESIGNATOR UNJF
NOMINAL THREAD DIAMETER0.438 INCHES
THREAD QUANTITY PER INCH20
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.428 INCHES MINIMUM AND 0.478 INCHES MAXIMUM
FASTENER LENGTH3.500 INCHES MINIMUM AND 3.530 INCHES MAXIMUM
HEAD STYLE0 HEXAGON COUNTERSUNK
HEAD DIAMETER0.880 INCHES MINIMUM AND 0.890 INCHES MAXIMUM
COUNTERSINK ANGLE99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
INTERNAL DRIVE STYLE HIGH-TORQUE
GRIP LENGTH3.052 INCHES MINIMUM AND 3.072 INCHES MAXIMUM
GRIP DIAMETER0.4365 INCHES MINIMUM AND 0.4370 INCHES MAXIMUM