NSN 5305-01-280-4799

Part Details | CLOSE TOLERANCE SCREW

5305-01-280-4799 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: C7985518, C7985-5-18, VT1694518, VT1694-5-18, C7985518, C7985-5-18, C7985518, C7985-5-18, C7985518, C7985-5-18, 1215585A18P, 121558-5-A18P, C7985518, C7985-5-18, PBF1166518, PBF1166-5-18, 5305-01-280-4799, 01-280-4799, 5305012804799, 012804799

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53JUN 11, 198801-280-479929294 ( SCREW, CLOSE TOLERANCE )
REFERENCE DRAWINGS & PICTURES

HEXAGON COUNTERSUNK

HEXAGON

Cross Reference | NSN 5305-01-280-4799
Part Number Cage Code Manufacturer
C7985-5-1806950ARCONIC GLOBAL FASTENERS & RINGS,INC.
VT1694-5-1892215ARCONIC GLOBAL FASTENERS & RINGS,INC.
C7985-5-1817446HUCK INTERNATIONAL, INC.DBA ARCONIC FASTENING SYSTEMS AND
C7985-5-1881755LOCKHEED MARTIN CORPORATIONDBA LOCKHEED MARTIN AERONAUTICS
C7985-5-1856878SPS TECHNOLOGIES, LLCDBA AEROSPACE DIVISION
121558-5-A18P80539SPS TECHNOLOGIES, LLCDBA AEROSPACE FASTENERS GROUP
C7985-5-1806725SPS TECHNOLOGIES, LLCDBA AIR INDUSTRIES
PBF1166-5-1827624SPS TECHNOLOGIES, LLCDBA PB FASTENERS
Technical Data | NSN 5305-01-280-4799
Characteristic Specifications
THREAD SERIES DESIGNATOR UNJF
NOMINAL THREAD DIAMETER0.312 INCHES
THREAD QUANTITY PER INCH24
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.501 INCHES NOMINAL
FASTENER LENGTH1.626 INCHES NOMINAL
MINIMUM TENSILE STRENGTH7000 POUNDS PER SQUARE INCH
SINGLE SHEAR STRENGTH132000 POUNDS PER SQUARE INCH
HEAD STYLE0 HEXAGON COUNTERSUNK
HEAD DIAMETER0.479 INCHES NOMINAL
COUNTERSINK ANGLE99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
INTERNAL DRIVE STYLE HEXAGON
WIDTH ACROSS FLATS0.189 INCHES MINIMUM AND 0.193 INCHES MAXIMUM
GRIP LENGTH1.125 INCHES NOMINAL
GRIP DIAMETER0.311 INCHES MINIMUM AND 0.312 INCHES MAXIMUM