NSN 5305-00-539-5342

Part Details | CLOSE TOLERANCE SCREW

5305-00-539-5342 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: HT4025L412, HT4025L4-12, ST3M4544L12, ST3M454-4L12, HT4025L412, HT4025L4-12, HT4025L412, HT4025L4-12, CHT4025412, CHT4025-4-12, ST3M4544L12, ST3M454-4L12, CHT4025412, CHT4025-4-12, ST3M4544L12, ST3M454-4L12, ST3M4544L12, ST3M454-4L12, HT4025L412, HT4025L4-12, ST3M4544L12, ST3M454-4L12, HT4025L412, HT4025L4-12, HT4025L412, HT4025L4-12, HT4025L412, HT4025L4-12, 10125365, 119054L12, 11905-4L12, HT4025L44L12, HT4025L4-4L12, HT4025L412, HT4025L4-12, HT4025L412, HT4025L4-12, HT4025L412, HT4025L4-12, HT4025L412, HT4025L4-12, CHT4025412, CHT4025-4-12, HT4025L412, HT4025L4-12, HT4025L412, HT4025L4-12, ST3M4544L12, ST3M454-4L12, WC4025L412, WC4025L-4-12, 5305-00-539-5342, 00-539-5342, 5305005395342, 005395342

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53SEP 25, 197400-539-534229294 ( SCREW, CLOSE TOLERANCE )
REFERENCE DRAWINGS & PICTURES

HEXAGON COUNTERSUNK

HIGH-TORQUE

Cross Reference | NSN 5305-00-539-5342
Part Number Cage Code Manufacturer
HT4025L4-12C4293ALCOA FASTENING SYSTEMSFAIRCHILDFASTENERS EUROPE - VSD GMBH
ST3M454-4L121RC86ARCONIC GLOBAL FASTENERS & RINGS,INC.
HT4025L4-1292215ARCONIC GLOBAL FASTENERS & RINGS,INC.
HT4025L4-1206950ARCONIC GLOBAL FASTENERS & RINGS,INC.
CHT4025-4-1292215ARCONIC GLOBAL FASTENERS & RINGS,INC.
ST3M454-4L1276301BOEING COMPANY, THEDBA BOEING
CHT4025-4-1217419DEUTSCH CO THE
ST3M454-4L1258998FASTENER INNOVATION TECHNOLOGY, INC.DBA F I T
ST3M454-4L120ZC92HEARTLAND PRECISION FASTENERS, INC.
HT4025L4-1273197HI-SHEAR CORPORATION
ST3M454-4L121VSL7HOUSTON PRECISION FASTENERS I, LP
HT4025L4-1217446HUCK INTERNATIONAL, INC.DBA ARCONIC FASTENING SYSTEMS AND
HT4025L4-1297928HUCK INTL INC
HT4025L4-12L4528LISI AEROSPACE CANADA CORPDIV HI SHEAR HOLDINGS INC
10125365A486GNIMIKKEISTOKESKUS NCB FINLAND
11905-4L1259563REID PRODUCTS INC.DBA REID PRODUCTS
HT4025L4-4L12R1120SATAIR A/S
HT4025L4-120PTK6SPS TECHNOLOGIES INC
HT4025L4-12K5673SPS TECHNOLOGIES LTD TJ BROOKSDIVISION
HT4025L4-1256878SPS TECHNOLOGIES, LLCDBA AEROSPACE DIVISION
HT4025L4-1280539SPS TECHNOLOGIES, LLCDBA AEROSPACE FASTENERS GROUP
CHT4025-4-1280539SPS TECHNOLOGIES, LLCDBA AEROSPACE FASTENERS GROUP
HT4025L4-1206725SPS TECHNOLOGIES, LLCDBA AIR INDUSTRIES
HT4025L4-1227624SPS TECHNOLOGIES, LLCDBA PB FASTENERS
ST3M454-4L1206710VALLEY-TODECO, INC.DBA ARCONIC FASTENING SYSTEMS AND
WC4025L-4-1260516WEST COAST AEROSPACE INC
Technical Data | NSN 5305-00-539-5342
Characteristic Specifications
THREAD SERIES DESIGNATOR UNJF
NOMINAL THREAD DIAMETER0.250 INCHES
THREAD QUANTITY PER INCH28
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.469 INCHES NOMINAL
FASTENER LENGTH1.204 INCHES MINIMUM AND 1.234 INCHES MAXIMUM
HEAD STYLE0 HEXAGON COUNTERSUNK
HEAD DIAMETER0.497 INCHES MINIMUM AND 0.507 INCHES MAXIMUM
COUNTERSINK ANGLE99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
INTERNAL DRIVE STYLE HIGH-TORQUE
GRIP LENGTH0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM
GRIP DIAMETER0.2490 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM