NSN 5306-00-251-7578

Part Details | INTERNAL WRENCHING BOLT

5306-00-251-7578 An externally threaded fastener whose threaded portion is of one nominal diameter, No. 10 (0.190 IN.) (5 mm) or larger. It is designed with an internal socket or internal multiple spline for use with an internal driver. The head is beveled (conical) or cylindrical in shape. Items with cylindrical shaped heads must have an externally relieved body. A locking feature may be incorporated in the design of the head or threads. See also SCREW, CAP, SOCKET HEAD. Excludes SETSCREW; SCREW, SHOULDER; BOLT, SHOULDER; SCREW, EXTERNALLY RELIEVED BODY; BOLT, EXTERNALLY RELIEVED BODY; and SCREW, MACHINE.

Alternate Parts: 10162622, 5306-00-251-7578, 00-251-7578, 5306002517578, 002517578

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53JAN 13, 197200-251-757806666 ( BOLT, INTERNAL WRENCHING )
REFERENCE DRAWINGS & PICTURES

HEXAGON

Cross Reference | NSN 5306-00-251-7578
Part Number Cage Code Manufacturer
1016262218876U S ARMY AVIATION AND MISSILECOMMAND
Technical Data | NSN 5306-00-251-7578
Characteristic Specifications
THREAD SERIES DESIGNATOR UNC
NOMINAL THREAD DIAMETER0.312 INCHES
THREAD QUANTITY PER INCH18
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH1.490 INCHES MINIMUM AND 1.510 INCHES MAXIMUM
FASTENER LENGTH3.240 INCHES MINIMUM AND 3.260 INCHES MAXIMUM
MINIMUM TENSILE STRENGTH180000 POUNDS PER SQUARE INCH
HEAD DIAMETER0.450 INCHES MINIMUM AND 0.470 INCHES MAXIMUM
HEAD HEIGHT0.300 INCHES MINIMUM AND 0.320 INCHES MAXIMUM
INTERNAL DRIVE STYLE HEXAGON
WIDTH ACROSS FLATS0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM