NSN 5305-01-056-4220

Part Details | CLOSE TOLERANCE SCREW

5305-01-056-4220 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: VT16951052, VT1695-10-52, C79861052, C7986-10-52, C79861052, C7986-10-52, C79861052, C7986-10-52, C79861052, C7986-10-52, 1217111052, 121711-10-52, 9861052, 986-10-52, AIC9861052, AIC986-10-52, C79861052, C7986-10-52, 5305-01-056-4220, 01-056-4220, 5305010564220, 010564220

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53FEB 21, 197801-056-422029294 ( SCREW, CLOSE TOLERANCE )
REFERENCE DRAWINGS & PICTURES

HEXAGON COUNTERSUNK

OFFSET CRUCIFORM (TORQUE SET)

Cross Reference | NSN 5305-01-056-4220
Part Number Cage Code Manufacturer
VT1695-10-5292215ARCONIC GLOBAL FASTENERS & RINGS,INC.
C7986-10-5206950ARCONIC GLOBAL FASTENERS & RINGS,INC.
C7986-10-5217446HUCK INTERNATIONAL, INC.DBA ARCONIC FASTENING SYSTEMS AND
C7986-10-5281755LOCKHEED MARTIN CORPORATIONDBA LOCKHEED MARTIN AERONAUTICS
C7986-10-5256878SPS TECHNOLOGIES, LLCDBA AEROSPACE DIVISION
121711-10-5280539SPS TECHNOLOGIES, LLCDBA AEROSPACE FASTENERS GROUP
986-10-5206725SPS TECHNOLOGIES, LLCDBA AIR INDUSTRIES
AIC986-10-5206725SPS TECHNOLOGIES, LLCDBA AIR INDUSTRIES
C7986-10-5227624SPS TECHNOLOGIES, LLCDBA PB FASTENERS
Technical Data | NSN 5305-01-056-4220
Characteristic Specifications
THREAD SERIES DESIGNATOR UNJF
NOMINAL THREAD DIAMETER0.625 INCHES
THREAD QUANTITY PER INCH18
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.990 INCHES MINIMUM AND 1.020 INCHES MAXIMUM
FASTENER LENGTH3.250 INCHES NOMINAL
HEAD STYLE0 HEXAGON COUNTERSUNK
HEAD DIAMETER1.201 INCHES MINIMUM AND 1.272 INCHES MAXIMUM
COUNTERSINK ANGLE100.0 DEGREES NOMINAL
INTERNAL DRIVE STYLE OFFSET CRUCIFORM (TORQUE SET)
GRIP LENGTH2.235 INCHES MINIMUM AND 2.255 INCHES MAXIMUM
GRIP DIAMETER0.6230 INCHES MINIMUM AND 0.6240 INCHES MAXIMUM