NSN 5305-01-241-5080

Part Details | CLOSE TOLERANCE SCREW

5305-01-241-5080 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: 3M9264L18, 3M926-4L-18, HT4068418A, HT-4068-4-18A, 3M9264L18, 3M926-4L-18, 3M9264L18, 3M926-4L18, HT4068418A, HT-4068-4-18A, HT4068418A, HT-4068-4-18A, HT4068418A, HT-4068-4-18A, HT4068418A, HT-4068-4-18A, 118834L18, 11883-4L-18, HT4068418A, HT-4068-4-18A, 3M9264L18, 3M926-4L18, WC4068418, WC4068-4-18, 5305-01-241-5080, 01-241-5080, 5305012415080, 012415080

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53SEP 27, 198601-241-508029294 ( SCREW, CLOSE TOLERANCE )
REFERENCE DRAWINGS & PICTURES

HEXAGON COUNTERSUNK

HIGH-TORQUE

Cross Reference | NSN 5305-01-241-5080
Part Number Cage Code Manufacturer
3M926-4L-1806950ARCONIC GLOBAL FASTENERS & RINGS,INC.
HT-4068-4-18A92215ARCONIC GLOBAL FASTENERS & RINGS,INC.
3M926-4L-1876301BOEING COMPANY, THEDBA BOEING
3M926-4L1858998FASTENER INNOVATION TECHNOLOGY, INC.DBA F I T
HT-4068-4-18A73197HI-SHEAR CORPORATION
HT-4068-4-18A17446HUCK INTERNATIONAL, INC.DBA ARCONIC FASTENING SYSTEMS AND
HT-4068-4-18A97928HUCK INTL INC
HT-4068-4-18AL4528LISI AEROSPACE CANADA CORPDIV HI SHEAR HOLDINGS INC
11883-4L-1859563REID PRODUCTS INC.DBA REID PRODUCTS
HT-4068-4-18A56878SPS TECHNOLOGIES, LLCDBA AEROSPACE DIVISION
3M926-4L18007R1TWIST TITE MFG, INC
WC4068-4-1860516WEST COAST AEROSPACE INC
Technical Data | NSN 5305-01-241-5080
Characteristic Specifications
THREAD SERIES DESIGNATOR UNJF
NOMINAL THREAD DIAMETER0.250 INCHES
THREAD QUANTITY PER INCH28
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.444 INCHES MINIMUM AND 0.494 INCHES MAXIMUM
FASTENER LENGTH1.579 INCHES MINIMUM AND 1.609 INCHES MAXIMUM
MINIMUM TENSILE STRENGTH125000 POUNDS PER SQUARE INCH
HEAD STYLE4 HEXAGON COUNTERSUNK
HEAD DIAMETER0.389 INCHES MINIMUM AND 0.394 INCHES MAXIMUM
COUNTERSINK ANGLE100.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
INTERNAL DRIVE STYLE HIGH-TORQUE
GRIP LENGTH1.115 INCHES MINIMUM AND 1.135 INCHES MAXIMUM
GRIP DIAMETER0.2485 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM