NSN 5305-01-394-5977

Part Details | CLOSE TOLERANCE SCREW

5305-01-394-5977 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: ST3M466V4DL4M1, HT4028L4D4M, HT4028L4D4M, ST3M466V4DL4M1, ST3M466V4DL4M1, ST3M466V4DL4M1, ST3M466V4DL4M1, 11909V4DL4M1, ST3M466V4DL4M1, ST3M466V4DL4M1, 5305-01-394-5977, 01-394-5977, 5305013945977, 013945977

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53AUG 11, 199401-394-597729294 ( SCREW, CLOSE TOLERANCE )
REFERENCE DRAWINGS & PICTURES

HEXAGON COUNTERSUNK

HIGH-TORQUE

Cross Reference | NSN 5305-01-394-5977
Part Number Cage Code Manufacturer
ST3M466V4DL4M192215ARCONIC GLOBAL FASTENERS & RINGS,INC.
HT4028L4D4M92215ARCONIC GLOBAL FASTENERS & RINGS,INC.
HT4028L4D4M06950ARCONIC GLOBAL FASTENERS & RINGS,INC.
ST3M466V4DL4M176301BOEING COMPANY, THEDBA BOEING
ST3M466V4DL4M173197HI-SHEAR CORPORATION
ST3M466V4DL4M117446HUCK INTERNATIONAL, INC.DBA ARCONIC FASTENING SYSTEMS AND
ST3M466V4DL4M1L4528LISI AEROSPACE CANADA CORPDIV HI SHEAR HOLDINGS INC
11909V4DL4M159563REID PRODUCTS INC.DBA REID PRODUCTS
ST3M466V4DL4M1K5673SPS TECHNOLOGIES LTD TJ BROOKSDIVISION
ST3M466V4DL4M180539SPS TECHNOLOGIES, LLCDBA AEROSPACE FASTENERS GROUP
Technical Data | NSN 5305-01-394-5977
Characteristic Specifications
THREAD SERIES DESIGNATOR UNJF
NOMINAL THREAD DIAMETER0.250 INCHES
THREAD QUANTITY PER INCH28
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.460 INCHES NOMINAL
FASTENER LENGTH1.070 INCHES MINIMUM AND 1.200 INCHES MAXIMUM
MINIMUM TENSILE STRENGTH160000 POUNDS PER SQUARE INCH
HEAD STYLE4 HEXAGON COUNTERSUNK
HEAD DIAMETER0.390 INCHES MINIMUM AND 0.395 INCHES MAXIMUM
COUNTERSINK ANGLE99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
INTERNAL DRIVE STYLE HIGH-TORQUE
GRIP LENGTH0.615 INCHES MINIMUM AND 0.635 INCHES MAXIMUM
GRIP DIAMETER0.2490 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM
FEATURES PROVIDED DRY FILM LUBRICANT
SPECIAL FEATURESDOMED HEAD