NSN 5305-00-324-8520

Part Details | CLOSE TOLERANCE SCREW

5305-00-324-8520 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: ST3M430V47D, ST3M430V4-7D, HT813747, HT8137-4-7, HT813747, HT8137-4-7, ST3M430V47D, ST3M430V4-7D, ST3M430V47D, ST3M430V4-7D, HT27147, HT271-4-7, ST3M430V47D, ST3M430V4-7D, BM33024V47, BM33024V4-7, BM33024V47, BM33024V4-7, HT27147, HT271-4-7, 11017947, 110179-4-7, 11017947, 110179-4-7, 11017947, 110179-4-7, 11017947, 110179-4-7, WC813747, WC8137-4-7, 5305-00-324-8520, 00-324-8520, 5305003248520, 003248520

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53NOV 28, 197300-324-852029294 ( SCREW, CLOSE TOLERANCE )
REFERENCE DRAWINGS & PICTURES

HEXAGON COUNTERSUNK

HIGH-TORQUE

Cross Reference | NSN 5305-00-324-8520
Part Number Cage Code Manufacturer
ST3M430V4-7D92215ARCONIC GLOBAL FASTENERS & RINGS,INC.
HT8137-4-792215ARCONIC GLOBAL FASTENERS & RINGS,INC.
HT8137-4-706950ARCONIC GLOBAL FASTENERS & RINGS,INC.
ST3M430V4-7D76301BOEING COMPANY, THEDBA BOEING
ST3M430V4-7D58998FASTENER INNOVATION TECHNOLOGY, INC.DBA F I T
HT271-4-773197HI-SHEAR CORPORATION
ST3M430V4-7D1VSL7HOUSTON PRECISION FASTENERS I, LP
BM33024V4-717446HUCK INTERNATIONAL, INC.DBA ARCONIC FASTENING SYSTEMS AND
BM33024V4-797928HUCK INTL INC
HT271-4-7L4528LISI AEROSPACE CANADA CORPDIV HI SHEAR HOLDINGS INC
110179-4-750392SPS TECHNOLOGIES INC
110179-4-7K5673SPS TECHNOLOGIES LTD TJ BROOKSDIVISION
110179-4-756878SPS TECHNOLOGIES, LLCDBA AEROSPACE DIVISION
110179-4-780539SPS TECHNOLOGIES, LLCDBA AEROSPACE FASTENERS GROUP
WC8137-4-760516WEST COAST AEROSPACE INC
Technical Data | NSN 5305-00-324-8520
Characteristic Specifications
THREAD SERIES DESIGNATOR UNJF
NOMINAL THREAD DIAMETER0.250 INCHES
THREAD QUANTITY PER INCH28
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.442 INCHES MINIMUM AND 0.509 INCHES MAXIMUM
FASTENER LENGTH0.890 INCHES MINIMUM AND 0.937 INCHES MAXIMUM
HEAD STYLE1 HEXAGON COUNTERSUNK
HEAD DIAMETER0.501 INCHES MINIMUM AND 0.506 INCHES MAXIMUM
HEAD HEIGHT0.071 INCHES MINIMUM AND 0.073 INCHES MAXIMUM
COUNTERSINK ANGLE100.0 DEGREES MINIMUM
INTERNAL DRIVE STYLE HIGH-TORQUE
GRIP LENGTH0.428 INCHES MINIMUM AND 0.448 INCHES MAXIMUM
GRIP DIAMETER0.2490 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM