NSN 5306-00-288-1418

Part Details | INTERNALLY RELIEVED BODY BOLT

5306-00-288-1418 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: 1283063101, 1283063-101, 5306-00-288-1418, 00-288-1418, 5306002881418, 002881418

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53SEP 12, 197300-288-141806676 ( BOLT, INTERNALLY RELIEVED BODY )
REFERENCE DRAWINGS & PICTURES

HEXAGON

COUNTERBORE UNTHREADED

Cross Reference | NSN 5306-00-288-1418
Part Number Cage Code Manufacturer
1283063-10198897LOCKHEED MARTIN CORPORATIONDBA LOCKHEED MARTIN AERONAUTICS
Technical Data | NSN 5306-00-288-1418
Characteristic Specifications
THREAD SERIES DESIGNATOR UNF
NOMINAL THREAD DIAMETER0.625 INCHES
THREAD QUANTITY PER INCH18
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.720 INCHES MINIMUM
FASTENER LENGTH3.397 INCHES MINIMUM AND 3.412 INCHES MAXIMUM
MINIMUM TENSILE STRENGTH180000 POUNDS PER SQUARE INCH
STYLE DESIGNATOR COUNTERBORE UNTHREADED
SHOULDER DIAMETER0.8765 INCHES MINIMUM AND 0.8770 INCHES MAXIMUM
SHOULDER LENGTH2.627 INCHES MINIMUM AND 2.642 INCHES MAXIMUM
COUNTERBORE DIAMETER0.625 INCHES MINIMUM AND 0.626 INCHES MAXIMUM
COUNTERBORE DEPTH2.960 INCHES NOMINAL
CONCENTRIC HOLE DIAMETER0.385 INCHES MINIMUM AND 0.390 INCHES MAXIMUM
HEAD STYLE HEXAGON
HEAD HEIGHT0.438 INCHES MINIMUM AND 0.453 INCHES MAXIMUM
WIDTH BETWEEN FLATS1.250 INCHES NOMINAL
CRITICALITY CODE JUSTIFICATIONAAVH