NSN 5305-00-159-2617

Part Details | CLOSE TOLERANCE SCREW

5305-00-159-2617 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: VT1039V521, VT1039V5-21, HR101V521, HR101V-5-21, HR101V521, HR101V-5-21, C387V521, C387V5-21, 64040V521, 64040V5-21, 64040V521, 64040V5-21, AIC1023V521, AIC1023V5-21, CS318642V521, CS318642V5-21, 5305-00-159-2617, 00-159-2617, 5305001592617, 001592617

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53OCT 29, 197100-159-261729294 ( SCREW, CLOSE TOLERANCE )
REFERENCE DRAWINGS & PICTURES

HEXAGON COUNTERSUNK

OFFSET CRUCIFORM (TORQUE SET)

Cross Reference | NSN 5305-00-159-2617
Part Number Cage Code Manufacturer
VT1039V5-2192215ARCONIC GLOBAL FASTENERS & RINGS,INC.
HR101V-5-2173197HI-SHEAR CORPORATION
HR101V-5-21L4528LISI AEROSPACE CANADA CORPDIV HI SHEAR HOLDINGS INC
C387V5-2181755LOCKHEED MARTIN CORPORATIONDBA LOCKHEED MARTIN AERONAUTICS
64040V5-2156878SPS TECHNOLOGIES, LLCDBA AEROSPACE DIVISION
64040V5-2180539SPS TECHNOLOGIES, LLCDBA AEROSPACE FASTENERS GROUP
AIC1023V5-2106725SPS TECHNOLOGIES, LLCDBA AIR INDUSTRIES
CS318642V5-2193907TEXTRON FASTENING SYSTEMSDBA DECORAH OPERATIONS TFS
Technical Data | NSN 5305-00-159-2617
Characteristic Specifications
THREAD SERIES DESIGNATOR UNF
NOMINAL THREAD DIAMETER0.312 INCHES
THREAD QUANTITY PER INCH24
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.423 INCHES MINIMUM AND 0.473 INCHES MAXIMUM
FASTENER LENGTH1.745 INCHES MINIMUM AND 1.775 INCHES MAXIMUM
MINIMUM TENSILE STRENGTH160000 POUNDS PER SQUARE INCH
HEAD STYLE0 HEXAGON COUNTERSUNK
HEAD DIAMETER0.531 INCHES MINIMUM AND 0.558 INCHES MAXIMUM
COUNTERSINK ANGLE59.75 DEGREES MINIMUM AND 60.25 DEGREES MAXIMUM
INTERNAL DRIVE STYLE OFFSET CRUCIFORM (TORQUE SET)
GRIP LENGTH1.302 INCHES MINIMUM AND 1.322 INCHES MAXIMUM
GRIP DIAMETER0.3115 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM
SPECIAL FEATURESBEARING SURFACE OF HEAD GROOVED TO 0.394 IN. MIN,0.396 IN. MAX DIA,0.092 IN. MIN,0.097 IN. MAX LG,FROM TOP OF HEAD