NSN 5306-01-055-9731

Part Details | MACHINE BOLT

5306-01-055-9731 An externally threaded fastener designed for insertion through holes in assembled parts and normally intended to be tightened or released by torquing a nut. The threaded and unthreaded portions are both of one nominal diameter of 0.190 inch (5 mm) or larger. The head is not designed to be held or driven with an inserted driver or by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. For items having a grip length portion machined to a tolerance of 0.0015 inch (0.038 mm) or less, BOLT, SHEAR. See also SCREW, CAP, HEXAGON HEAD and SCREW, MACHINE.

Alternate Parts: RBA144SA2513, RBA144SA25-13, 5306-01-055-9731, 01-055-9731, 5306010559731, 010559731

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53FEB 15, 197801-055-973101847 ( BOLT, MACHINE )
REFERENCE DRAWINGS & PICTURES

HEXAGON COUNTERSUNK UNDERCUT

Cross Reference | NSN 5306-01-055-9731
Part Number Cage Code Manufacturer
RBA144SA25-1383324ARCONIC GLOBAL FASTENERS & RINGS,INC.
Technical Data | NSN 5306-01-055-9731
Characteristic Specifications
HEAD STYLE7 HEXAGON COUNTERSUNK UNDERCUT
THREAD SERIES DESIGNATOR UNF
NOMINAL THREAD DIAMETER0.250 INCHES
THREAD QUANTITY PER INCH28
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.807 INCHES MINIMUM AND 0.817 INCHES MAXIMUM
FASTENER LENGTH1.557 INCHES MINIMUM AND 1.567 INCHES MAXIMUM
MINIMUM TENSILE STRENGTH125000 POUNDS PER SQUARE INCH
HEAD DIAMETER0.468 INCHES NOMINAL
HEAD HEIGHT0.187 INCHES NOMINAL
GRIP LENGTH0.750 INCHES NOMINAL