NSN 5305-00-345-1582

Part Details | CLOSE TOLERANCE SCREW

5305-00-345-1582 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: LS15265V420, LS15265V4-20, LS15265V420, LS15265V4-20, LS15265V420, LS15265V4-20, LS15625V420, LS15625V4-20, LS15265V420, LS15265V4-20, LS15625V420, LS15625V4-20, LS15265V420, LS15265V4-20, LS15265V420, LS15265V4-20, 5305-00-345-1582, 00-345-1582, 5305003451582, 003451582

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53JAN 20, 197400-345-158229294 ( SCREW, CLOSE TOLERANCE )
REFERENCE DRAWINGS & PICTURES

DISHED HEXAGON

CROSS RECESS TYPE 1

Cross Reference | NSN 5305-00-345-1582
Part Number Cage Code Manufacturer
LS15265V4-2092215ARCONIC GLOBAL FASTENERS & RINGS,INC.
LS15265V4-2006950ARCONIC GLOBAL FASTENERS & RINGS,INC.
LS15265V4-2098897LOCKHEED MARTIN CORPORATIONDBA LOCKHEED MARTIN AERONAUTICS
LS15625V4-2056878SPS TECHNOLOGIES, LLCDBA AEROSPACE DIVISION
LS15265V4-2006725SPS TECHNOLOGIES, LLCDBA AIR INDUSTRIES
LS15625V4-2027624SPS TECHNOLOGIES, LLCDBA PB FASTENERS
LS15265V4-2070236TACTAIR FLUID CONTROLS, INC.
LS15265V4-2006710VALLEY-TODECO, INC.DBA ARCONIC FASTENING SYSTEMS AND
Technical Data | NSN 5305-00-345-1582
Characteristic Specifications
THREAD SERIES DESIGNATOR UNF
NOMINAL THREAD DIAMETER0.250 INCHES
THREAD QUANTITY PER INCH28
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.291 INCHES MINIMUM AND 0.341 INCHES MAXIMUM
FASTENER LENGTH1.551 INCHES MINIMUM AND 1.581 INCHES MAXIMUM
MINIMUM TENSILE STRENGTH160000 POUNDS PER SQUARE INCH
HEAD STYLE2 DISHED HEXAGON
HEAD DIAMETER0.473 INCHES MINIMUM AND 0.492 INCHES MAXIMUM
HEAD HEIGHT0.162 INCHES MINIMUM AND 0.175 INCHES MAXIMUM
INTERNAL DRIVE STYLE CROSS RECESS TYPE 1
GRIP LENGTH1.240 INCHES MINIMUM AND 1.260 INCHES MAXIMUM
GRIP DIAMETER0.2485 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM
PART NAME ASSIGNED BY CONTROLLING AGENCYNAVY SPECIAL PROJECT