NSN 5305-01-397-1784

Part Details | CLOSE TOLERANCE SCREW

5305-01-397-1784 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: 3M9263L18, 3M926-3L18, 3M9263L18, 3M926-3L18, HT4068318A, HT4068-3-18A, 3M9263L18, 3M926-3L18, HT4068318A, HT4068-3-18A, 118833L18, 11883-3L18, 3M9263L18, 3M926-3L18, 3M9263L18, 3M926-3L18, 5305-01-397-1784, 01-397-1784, 5305013971784, 013971784

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53OCT 05, 199401-397-178429294 ( SCREW, CLOSE TOLERANCE )
REFERENCE DRAWINGS & PICTURES

HEXAGON COUNTERSUNK

HIGH-TORQUE

Cross Reference | NSN 5305-01-397-1784
Part Number Cage Code Manufacturer
3M926-3L1892215ARCONIC GLOBAL FASTENERS & RINGS,INC.
3M926-3L1876301BOEING COMPANY, THEDBA BOEING
HT4068-3-18A73197HI-SHEAR CORPORATION
3M926-3L1817446HUCK INTERNATIONAL, INC.DBA ARCONIC FASTENING SYSTEMS AND
HT4068-3-18AL4528LISI AEROSPACE CANADA CORPDIV HI SHEAR HOLDINGS INC
11883-3L1859563REID PRODUCTS INC.DBA REID PRODUCTS
3M926-3L18K5673SPS TECHNOLOGIES LTD TJ BROOKSDIVISION
3M926-3L1856878SPS TECHNOLOGIES, LLCDBA AEROSPACE DIVISION
Technical Data | NSN 5305-01-397-1784
Characteristic Specifications
THREAD SERIES DESIGNATOR UNJF
NOMINAL THREAD DIAMETER0.190 INCHES
THREAD QUANTITY PER INCH32
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.406 INCHES MAXIMUM
FASTENER LENGTH1.110 INCHES MINIMUM AND 1.140 INCHES MAXIMUM
MINIMUM TENSILE STRENGTH125000 POUNDS PER SQUARE INCH
HEAD STYLE0 HEXAGON COUNTERSUNK
HEAD DIAMETER0.297 INCHES MINIMUM AND 0.302 INCHES MAXIMUM
COUNTERSINK ANGLE99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
INTERNAL DRIVE STYLE HIGH-TORQUE
GRIP LENGTH1.115 INCHES MINIMUM AND 1.135 INCHES MAXIMUM
GRIP DIAMETER0.1885 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM