NSN 5305-01-074-9049

Part Details | CLOSE TOLERANCE SCREW

5305-01-074-9049 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: ST3M559513, ST3M559-5-13, HT307513, HT307-5-13, HS26235213, HS2623-52-13, HT307513, HT307-5-13, 66908H513, 66908H5-13, 66908H513, 66908H5-13, 5305-01-074-9049, 01-074-9049, 5305010749049, 010749049

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53APR 10, 197901-074-904929294 ( SCREW, CLOSE TOLERANCE )
REFERENCE DRAWINGS & PICTURES

HEXAGON COUNTERSUNK

HIGH-TORQUE

Cross Reference | NSN 5305-01-074-9049
Part Number Cage Code Manufacturer
ST3M559-5-1376301BOEING COMPANY, THEDBA BOEING
HT307-5-1373197HI-SHEAR CORPORATION
HS2623-52-1397928HUCK INTL INC
HT307-5-13L4528LISI AEROSPACE CANADA CORPDIV HI SHEAR HOLDINGS INC
66908H5-1356878SPS TECHNOLOGIES, LLCDBA AEROSPACE DIVISION
66908H5-1380539SPS TECHNOLOGIES, LLCDBA AEROSPACE FASTENERS GROUP
Technical Data | NSN 5305-01-074-9049
Characteristic Specifications
THREAD SERIES DESIGNATOR UNJF
NOMINAL THREAD DIAMETER0.312 INCHES
THREAD QUANTITY PER INCH24
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.467 INCHES NOMINAL
FASTENER LENGTH1.179 INCHES NOMINAL
MINIMUM TENSILE STRENGTH220000 POUNDS PER SQUARE INCH
SINGLE SHEAR STRENGTH132000 POUNDS PER SQUARE INCH
HEAD STYLE0 HEXAGON COUNTERSUNK
HEAD DIAMETER0.625 INCHES MINIMUM AND 0.635 INCHES MAXIMUM
COUNTERSINK ANGLE100.0 DEGREES NOMINAL
INTERNAL DRIVE STYLE HIGH-TORQUE
GRIP LENGTH0.812 INCHES NOMINAL
GRIP DIAMETER0.3266 INCHES MINIMUM AND 0.3276 INCHES MAXIMUM