NSN 5305-01-323-1143

Part Details | CLOSE TOLERANCE SCREW

5305-01-323-1143 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: HR202616, HR202-6-16, HR202616, HR202-6-16, 5305-01-323-1143, 01-323-1143, 5305013231143, 013231143

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53JUL 21, 199001-323-114329294 ( SCREW, CLOSE TOLERANCE )
REFERENCE DRAWINGS & PICTURES

HEXAGON COUNTERSUNK

CROSS RECESS TYPE II

Cross Reference | NSN 5305-01-323-1143
Part Number Cage Code Manufacturer
HR202-6-1673197HI-SHEAR CORPORATION
HR202-6-1603950NAVAL INVENTORY CONTROL POINTMECHANICSBURG
Technical Data | NSN 5305-01-323-1143
Characteristic Specifications
NOMINAL THREAD DIAMETER0.375 INCHES
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.391 INCHES NOMINAL
FASTENER LENGTH1.375 INCHES MINIMUM AND 1.422 INCHES MAXIMUM
MINIMUM TENSILE STRENGTH160000 POUNDS PER SQUARE INCH
HEAD STYLE0 HEXAGON COUNTERSUNK
HEAD DIAMETER0.529 INCHES MINIMUM AND 0.560 INCHES MAXIMUM
COUNTERSINK ANGLE99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
INTERNAL DRIVE STYLE5 CROSS RECESS TYPE II
GRIP LENGTH0.990 INCHES MINIMUM AND 1.010 INCHES MAXIMUM
GRIP DIAMETER0.3735 INCHES MINIMUM AND 0.3745 INCHES MAXIMUM
PART NAME ASSIGNED BY CONTROLLING AGENCYNAVY SPECIAL PROJECT