NSN 5306-01-055-6211

Part Details | INTERNALLY RELIEVED BODY BOLT

5306-01-055-6211 An externally threaded fastener whose external threaded portion is of one nominal diameter. It has a concentric hole along the longitudinal centerline which may extend a part or the full length of the bolt. The concentric hole along the centerline may be counterbored and/or internally threaded at the head end or the bolt end. The head is designed to be held or driven by an external and/or internal driver. For items having a hole(s) perpendicular to the axis which meet the concentric hole along the longitudinal centerline, see BOLT, FLUID PASSAGE.

Alternate Parts: 0N198955, 5306-01-055-6211, 01-055-6211, 5306010556211, 010556211

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53FEB 09, 197801-055-621106676 ( BOLT, INTERNALLY RELIEVED BODY )
REFERENCE DRAWINGS & PICTURES

HEXAGON EXTENDED WASHER

COUNTERBORE UNTHREADED

Cross Reference | NSN 5306-01-055-6211
Part Number Cage Code Manufacturer
0N19895598230NATIONAL SECURITY AGENCY
Technical Data | NSN 5306-01-055-6211
Characteristic Specifications
THREAD SERIES DESIGNATOR UNC
NOMINAL THREAD DIAMETER0.250 INCHES
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.250 INCHES NOMINAL
FASTENER LENGTH0.750 INCHES NOMINAL
STYLE DESIGNATOR COUNTERBORE UNTHREADED
SHOULDER DIAMETER0.156 INCHES NOMINAL
SHOULDER LENGTH0.406 INCHES NOMINAL
COUNTERBORE DIAMETER0.040 INCHES NOMINAL
COUNTERBORE DEPTH0.046 INCHES NOMINAL
CONCENTRIC HOLE DIAMETER0.078 INCHES NOMINAL
HEAD STYLE2 HEXAGON EXTENDED WASHER
HEAD DIAMETER0.320 INCHES NOMINAL
HEAD HEIGHT0.069 INCHES NOMINAL
END ITEM IDENTIFICATIONKY-57 EQUIPMENT