NSN 5305-01-339-1413

Part Details | CLOSE TOLERANCE SCREW

5305-01-339-1413 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: CHT406745A, CHT4067-4-5A, CHT406745A, CHT4067-4-5A, 5305-01-339-1413, 01-339-1413, 5305013391413, 013391413

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53MAY 17, 199101-339-141329294 ( SCREW, CLOSE TOLERANCE )
REFERENCE DRAWINGS & PICTURES

HEXAGON COUNTERSUNK

HIGH-TORQUE

Cross Reference | NSN 5305-01-339-1413
Part Number Cage Code Manufacturer
CHT4067-4-5A92215ARCONIC GLOBAL FASTENERS & RINGS,INC.
CHT4067-4-5A06950ARCONIC GLOBAL FASTENERS & RINGS,INC.
Technical Data | NSN 5305-01-339-1413
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 LENGTH0.750 INCHES MINIMUM AND 0.765 INCHES MAXIMUM
MINIMUM TENSILE STRENGTH125000 POUNDS PER SQUARE INCH
HEAD STYLE1 HEXAGON COUNTERSUNK
HEAD DIAMETER0.477 INCHES MINIMUM AND 0.508 INCHES MAXIMUM
HEAD HEIGHT0.713 INCHES MINIMUM AND 0.733 INCHES MAXIMUM
COUNTERSINK ANGLE99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
INTERNAL DRIVE STYLE HIGH-TORQUE
GRIP LENGTH0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM
GRIP DIAMETER0.2485 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM
FEATURES PROVIDED O RING AND CETYL ALCOHOL LUBRICANT