NSN 5305-01-055-3811

Part Details | CLOSE TOLERANCE SCREW

5305-01-055-3811 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: BACB30LU56, BACB30LU5-6, BACB30LU56, BACB30LU5-6, BACB30LU56, BACB30LU5-6, BACB30LU56, BACB30LU5-6, BACB30LU56, BACB30LU5-6, BACB30LU56, BACB30LU5-6, BACB30LU56, BACB30LU5-6, BACB30LU56, BACB30LU5-6, BACB30LU56, BACB30LU5-6, BACB30LU56, BACB30LU5-6, BACB30LU56, BACB30LU5-6, 5305-01-055-3811, 01-055-3811, 5305010553811, 010553811

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53FEB 04, 197801-055-381129294 ( SCREW, CLOSE TOLERANCE )
REFERENCE DRAWINGS & PICTURES

HEXAGON COUNTERSUNK

CROSS RECESS TYPE 1

Cross Reference | NSN 5305-01-055-3811
Part Number Cage Code Manufacturer
BACB30LU5-606950ARCONIC GLOBAL FASTENERS & RINGS,INC.
BACB30LU5-617943FEDERAL MANUFACTURING CORPORATION
BACB30LU5-617446HUCK INTERNATIONAL, INC.DBA ARCONIC FASTENING SYSTEMS AND
BACB30LU5-697928HUCK INTL INC
BACB30LU5-657928SONIC INDUSTRIES INC.
BACB30LU5-656878SPS TECHNOLOGIES, LLCDBA AEROSPACE DIVISION
BACB30LU5-680539SPS TECHNOLOGIES, LLCDBA AEROSPACE FASTENERS GROUP
BACB30LU5-606725SPS TECHNOLOGIES, LLCDBA AIR INDUSTRIES
BACB30LU5-627624SPS TECHNOLOGIES, LLCDBA PB FASTENERS
BACB30LU5-681205THE BOEING COMPANYDBA BOEING
BACB30LU5-606710VALLEY-TODECO, INC.DBA ARCONIC FASTENING SYSTEMS AND
Technical Data | NSN 5305-01-055-3811
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 LENGTH0.829 INCHES MINIMUM AND 0.859 INCHES MAXIMUM
HEAD STYLE0 HEXAGON COUNTERSUNK
HEAD DIAMETER0.574 INCHES MINIMUM AND 0.637 INCHES MAXIMUM
COUNTERSINK ANGLE100.0 DEGREES NOMINAL
INTERNAL DRIVE STYLE CROSS RECESS TYPE 1
GRIP LENGTH0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM
GRIP DIAMETER0.3110 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM
END ITEM IDENTIFICATIONE-3A AWACS;AIRCRAFT, HERCULES C-130;JOINT STARS TARGET RADAR SYS