NSN 5305-01-346-2268

Part Details | CLOSE TOLERANCE SCREW

5305-01-346-2268 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: VT1693FL410, VT1693FL410, H044L410, H044-L410, H044L410, H044-L410, C7984L410, C7984-L4-10, C7984L410, C7984-L4-10, 121557 L4A10, 121557 L4-A10, C7984L410, C7984-L4-10, AIC984L410, AIC984-L410, PBF1165L410, PBF1165-L410, 5305-01-346-2268, 01-346-2268, 5305013462268, 013462268

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53SEP 30, 199101-346-226829294 ( SCREW, CLOSE TOLERANCE )
REFERENCE DRAWINGS & PICTURES

HEXAGON COUNTERSUNK

OFFSET CRUCIFORM (TORQUE SET)

Cross Reference | NSN 5305-01-346-2268
Part Number Cage Code Manufacturer
VT1693FL41092215ARCONIC GLOBAL FASTENERS & RINGS,INC.
VT1693FL41006950ARCONIC GLOBAL FASTENERS & RINGS,INC.
H044-L41017446HUCK INTERNATIONAL, INC.DBA ARCONIC FASTENING SYSTEMS AND
H044-L41097928HUCK INTL INC
C7984-L4-1081755LOCKHEED MARTIN CORPORATIONDBA LOCKHEED MARTIN AERONAUTICS
C7984-L4-1056878SPS TECHNOLOGIES, LLCDBA AEROSPACE DIVISION
121557 L4-A1080539SPS TECHNOLOGIES, LLCDBA AEROSPACE FASTENERS GROUP
C7984-L4-1006725SPS TECHNOLOGIES, LLCDBA AIR INDUSTRIES
AIC984-L41006725SPS TECHNOLOGIES, LLCDBA AIR INDUSTRIES
PBF1165-L41027624SPS TECHNOLOGIES, LLCDBA PB FASTENERS
Technical Data | NSN 5305-01-346-2268
Characteristic Specifications
THREAD SERIES DESIGNATOR UNJF
NOMINAL THREAD DIAMETER0.250 INCHES
THREAD QUANTITY PER INCH28
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.430 INCHES MINIMUM AND 0.501 INCHES MAXIMUM
FASTENER LENGTH1.111 INCHES MINIMUM AND 1.141 INCHES MAXIMUM
MINIMUM TENSILE STRENGTH220000 POUNDS PER SQUARE INCH
HEAD STYLE0 HEXAGON COUNTERSUNK
HEAD DIAMETER0.447 INCHES MINIMUM AND 0.507 INCHES MAXIMUM
COUNTERSINK ANGLE99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
INTERNAL DRIVE STYLE OFFSET CRUCIFORM (TORQUE SET)
GRIP LENGTH0.615 INCHES MINIMUM AND 0.635 INCHES MAXIMUM
GRIP DIAMETER0.2485 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM