NSN 5305-00-526-1227

Part Details | CLOSE TOLERANCE SCREW

5305-00-526-1227 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: BACB30LU5P42, BACB30LU5P42, BACB30LU5P42, BACB30LU5P42, BACB30LU5P42, BACB30LU5P42, BACB30LU5P42, BACB30LU5P42, BACB30LU5P42, BACB30LU5P42, BACB30LU5P42, BACB30LU5P42, BACB30LU5P42, BACB30LU5P42, 5305-00-526-1227, 00-526-1227, 5305005261227, 005261227

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53AUG 28, 197400-526-122729294 ( SCREW, CLOSE TOLERANCE )
REFERENCE DRAWINGS & PICTURES

HEXAGON COUNTERSUNK

CROSS RECESS TYPE 1

Cross Reference | NSN 5305-00-526-1227
Part Number Cage Code Manufacturer
BACB30LU5P4206950ARCONIC GLOBAL FASTENERS & RINGS,INC.
BACB30LU5P4292215ARCONIC GLOBAL FASTENERS & RINGS,INC.
BACB30LU5P421RC86ARCONIC GLOBAL FASTENERS & RINGS,INC.
BACB30LU5P4282918BOEING COMPANY, THEDBA BOEING
BACB30LU5P4217943FEDERAL MANUFACTURING CORPORATION
BACB30LU5P4273197HI-SHEAR CORPORATION
BACB30LU5P4217446HUCK INTERNATIONAL, INC.DBA ARCONIC FASTENING SYSTEMS AND
BACB30LU5P4297928HUCK INTL INC
BACB30LU5P42L4528LISI AEROSPACE CANADA CORPDIV HI SHEAR HOLDINGS INC
BACB30LU5P4256878SPS TECHNOLOGIES, LLCDBA AEROSPACE DIVISION
BACB30LU5P4280539SPS TECHNOLOGIES, LLCDBA AEROSPACE FASTENERS GROUP
BACB30LU5P4206725SPS TECHNOLOGIES, LLCDBA AIR INDUSTRIES
BACB30LU5P4281205THE BOEING COMPANYDBA BOEING
BACB30LU5P4206710VALLEY-TODECO, INC.DBA ARCONIC FASTENING SYSTEMS AND
Technical Data | NSN 5305-00-526-1227
Characteristic Specifications
THREAD SERIES DESIGNATOR UNJF
NOMINAL THREAD DIAMETER0.312 INCHES
THREAD QUANTITY PER INCH24
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.444 INCHES MINIMUM AND 0.494 INCHES MAXIMUM
FASTENER LENGTH3.079 INCHES MINIMUM AND 3.109 INCHES MAXIMUM
MINIMUM TENSILE STRENGTH160000 POUNDS PER SQUARE INCH
HEAD STYLE0 HEXAGON COUNTERSUNK
HEAD DIAMETER0.574 INCHES MINIMUM AND 0.637 INCHES MAXIMUM
COUNTERSINK ANGLE99.0 DEGREES MINIMUM AND 100.0 DEGREES MAXIMUM
INTERNAL DRIVE STYLE CROSS RECESS TYPE 1
GRIP LENGTH2.615 INCHES MINIMUM AND 2.635 INCHES MAXIMUM
GRIP DIAMETER0.3110 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM