NSN 5305-01-297-2494

Part Details | CLOSE TOLERANCE SCREW

5305-01-297-2494 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: HT4053413A, HT4053-4-13A, HT4053413A, HT4053-4-13A, ST3M7404L13, ST3M740-4L13, ST3M7404L13, ST3M740-4L13, HT5053413A, HT5053-4-13A, HT4053413A, HT4053-4-13A, HT4053413A, HT4053-4-13A, HT4053413A, HT4053-4-13A, HT4053413A, HT4053-4-13A, 10113662, HT4053413A, HT4053-4-13A, HT4053413A, HT4053-4-13A, HT4053413A, HT4053-4-13A, HT4053413A, HT4053-4-13A, 5305-01-297-2494, 01-297-2494, 5305012972494, 012972494

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53MAR 31, 198901-297-249429294 ( SCREW, CLOSE TOLERANCE )
REFERENCE DRAWINGS & PICTURES

HEXAGON COUNTERSUNK

HIGH-TORQUE

Cross Reference | NSN 5305-01-297-2494
Part Number Cage Code Manufacturer
HT4053-4-13A92215ARCONIC GLOBAL FASTENERS & RINGS,INC.
HT4053-4-13A15653ARCONIC GLOBAL FASTENERS & RINGS,INC.
ST3M740-4L1392215ARCONIC GLOBAL FASTENERS & RINGS,INC.
ST3M740-4L1376301BOEING COMPANY, THEDBA BOEING
HT5053-4-13A58998FASTENER INNOVATION TECHNOLOGY, INC.DBA F I T
HT4053-4-13A73197HI-SHEAR CORPORATION
HT4053-4-13A17446HUCK INTERNATIONAL, INC.DBA ARCONIC FASTENING SYSTEMS AND
HT4053-4-13A97928HUCK INTL INC
HT4053-4-13AL4528LISI AEROSPACE CANADA CORPDIV HI SHEAR HOLDINGS INC
10113662A486GNIMIKKEISTOKESKUS NCB FINLAND
HT4053-4-13A0PTK6SPS TECHNOLOGIES INC
HT4053-4-13AK5673SPS TECHNOLOGIES LTD TJ BROOKSDIVISION
HT4053-4-13A80539SPS TECHNOLOGIES, LLCDBA AEROSPACE FASTENERS GROUP
HT4053-4-13A60516WEST COAST AEROSPACE INC
Technical Data | NSN 5305-01-297-2494
Characteristic Specifications
THREAD SERIES DESIGNATOR UNJF
NOMINAL THREAD DIAMETER0.250 INCHES
THREAD QUANTITY PER INCH28
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.459 INCHES MINIMUM AND 0.479 INCHES MAXIMUM
FASTENER LENGTH1.266 INCHES MINIMUM AND 1.296 INCHES MAXIMUM
MINIMUM TENSILE STRENGTH180000 POUNDS PER SQUARE INCH
HEAD STYLE4 HEXAGON COUNTERSUNK
HEAD DIAMETER0.390 INCHES MINIMUM AND 0.395 INCHES MAXIMUM
COUNTERSINK ANGLE99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
INTERNAL DRIVE STYLE HIGH-TORQUE
GRIP LENGTH0.615 INCHES MINIMUM AND 0.635 INCHES MAXIMUM
GRIP DIAMETER0.2485 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM
FEATURES PROVIDED CETYL ALCOHOL LUBRICANT