NSN 5305-01-164-1622

Part Details | CLOSE TOLERANCE SCREW

5305-01-164-1622 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: CA2194404, CA2194-4-04, LE11100034004, LE111-0003-4004, FIT11100034004, FIT111-0003-4004, FIT1110003, FIT111-0003, FIT0100034004, FIT01-0003-4004, 5305-01-164-1622, 01-164-1622, 5305011641622, 011641622

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53OCT 13, 198301-164-162229294 ( SCREW, CLOSE TOLERANCE )
REFERENCE DRAWINGS & PICTURES

HEXAGON COUNTERSUNK

HEXAGON

Cross Reference | NSN 5305-01-164-1622
Part Number Cage Code Manufacturer
CA2194-4-0429372ARCONIC GLOBAL FASTENERS & RINGS,INC.
LE111-0003-400443999BOEING COMPANY, THEDBA BOEING
FIT111-0003-400458998FASTENER INNOVATION TECHNOLOGY, INC.DBA F I T
FIT111-000358998FASTENER INNOVATION TECHNOLOGY, INC.DBA F I T
FIT01-0003-400458998FASTENER INNOVATION TECHNOLOGY, INC.DBA F I T
Technical Data | NSN 5305-01-164-1622
Characteristic Specifications
THREAD SERIES DESIGNATOR UNJF
NOMINAL THREAD DIAMETER0.250 INCHES
THREAD QUANTITY PER INCH28
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.516 INCHES MINIMUM AND 0.556 INCHES MAXIMUM
FASTENER LENGTH0.776 INCHES MINIMUM AND 0.796 INCHES MAXIMUM
MINIMUM TENSILE STRENGTH160000 POUNDS PER SQUARE INCH
HEAD STYLE4 HEXAGON COUNTERSUNK
HEAD DIAMETER0.355 INCHES MINIMUM AND 0.397 INCHES MAXIMUM
COUNTERSINK ANGLE99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
INTERNAL DRIVE STYLE HEXAGON
WIDTH ACROSS FLATS0.1565 INCHES MINIMUM AND 0.1587 INCHES MAXIMUM
GRIP LENGTH0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM
GRIP DIAMETER0.2490 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM
SPECIAL FEATURESTHREE KEY SLOTS 0.040 IN. MIN. AND 0.044 IN. MAX. DIA. EVENLY SPACED AND 0.681 IN. MIN. AND 0.711 IN. MAX. LENGTH