NSN 5306-00-055-5866

Part Details | INTERNALLY RELIEVED BODY BOLT

5306-00-055-5866 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: 7977491, 797749-1, 5306-00-055-5866, 00-055-5866, 5306000555866, 000555866

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53JAN 01, 196300-055-586606676 ( BOLT, INTERNALLY RELIEVED BODY )
REFERENCE DRAWINGS & PICTURES

HEXAGON

HEXAGON LONGITUDINAL HOLE

COUNTERBORE UNTHREADED

Cross Reference | NSN 5306-00-055-5866
Part Number Cage Code Manufacturer
797749-198897LOCKHEED MARTIN CORPORATIONDBA LOCKHEED MARTIN AERONAUTICS
Technical Data | NSN 5306-00-055-5866
Characteristic Specifications
THREAD SERIES DESIGNATOR UNF
NOMINAL THREAD DIAMETER0.250 INCHES
THREAD QUANTITY PER INCH28
THREAD CLASS3B
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.395 INCHES MINIMUM
FASTENER LENGTH1.313 INCHES NOMINAL
MINIMUM TENSILE STRENGTH150000 POUNDS PER SQUARE INCH
STYLE DESIGNATORA COUNTERBORE UNTHREADED
SHOULDER DIAMETER0.417 INCHES NOMINAL
SHOULDER LENGTH0.375 INCHES NOMINAL
CONCENTRIC HOLE DIAMETER0.090 INCHES NOMINAL
HEAD STYLE HEXAGON
HEAD HEIGHT0.250 INCHES NOMINAL
WIDTH BETWEEN FLATS0.619 INCHES MINIMUM AND 0.625 INCHES MAXIMUM
HOLE CONFIGURATION STYLE HEXAGON LONGITUDINAL HOLE
HOLE TYPE DRILLED
HOLE QUANTITY6
HOLE DIAMETER0.062 INCHES NOMINAL