NSN 5305-01-049-4055

Part Details | CLOSE TOLERANCE SCREW

5305-01-049-4055 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: BACB30LH3U24, BACB30LH3U24, BACB30LH3U24, BACB30LH3U24, BACB30LH3U24, BACB30LH3U24, BACB30LH3U24, BACB30LH3U24, BACB30LH3U24, BACB30LH3U24, 5305-01-049-4055, 01-049-4055, 5305010494055, 010494055

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53OCT 19, 197701-049-405529294 ( SCREW, CLOSE TOLERANCE )
REFERENCE DRAWINGS & PICTURES

HEXAGON COUNTERSUNK

CROSS RECESS TYPE 1

Cross Reference | NSN 5305-01-049-4055
Part Number Cage Code Manufacturer
BACB30LH3U241RC86ARCONIC GLOBAL FASTENERS & RINGS,INC.
BACB30LH3U2417943FEDERAL MANUFACTURING CORPORATION
BACB30LH3U2417446HUCK INTERNATIONAL, INC.DBA ARCONIC FASTENING SYSTEMS AND
BACB30LH3U2497928HUCK INTL INC
BACB30LH3U2456878SPS TECHNOLOGIES, LLCDBA AEROSPACE DIVISION
BACB30LH3U2406725SPS TECHNOLOGIES, LLCDBA AIR INDUSTRIES
BACB30LH3U2427624SPS TECHNOLOGIES, LLCDBA PB FASTENERS
BACB30LH3U2481205THE BOEING COMPANYDBA BOEING
BACB30LH3U2406710VALLEY-TODECO, INC.DBA ARCONIC FASTENING SYSTEMS AND
BACB30LH3U249N513VOI-SHAN/CHATSWORTHDIV OF VSI CORP
Technical Data | NSN 5305-01-049-4055
Characteristic Specifications
THREAD SERIES DESIGNATOR UNJF
NOMINAL THREAD DIAMETER0.190 INCHES
THREAD QUANTITY PER INCH32
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.320 INCHES MINIMUM AND 0.350 INCHES MAXIMUM
FASTENER LENGTH1.830 INCHES MINIMUM AND 1.860 INCHES MAXIMUM
HEAD STYLE0 HEXAGON COUNTERSUNK
HEAD DIAMETER0.337 INCHES MINIMUM AND 0.383 INCHES MAXIMUM
COUNTERSINK ANGLE100.0 DEGREES NOMINAL
INTERNAL DRIVE STYLE CROSS RECESS TYPE 1
GRIP LENGTH1.490 INCHES MINIMUM AND 1.510 INCHES MAXIMUM
GRIP DIAMETER0.1890 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM
SPECIFICATION/STANDARD DATA81205-BACS12LH PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD