NSN 5306-00-257-7399

Part Details | INTERNALLY RELIEVED BODY BOLT

5306-00-257-7399 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: 2653361207, 265-336120-7, 0653361207, 065-336120-7, 5306-00-257-7399, 00-257-7399, 5306002577399, 002577399

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53JUN 22, 197300-257-739906676 ( BOLT, INTERNALLY RELIEVED BODY )
REFERENCE DRAWINGS & PICTURES

CONCENTRIC HOLE UNTHREADED

Cross Reference | NSN 5306-00-257-7399
Part Number Cage Code Manufacturer
265-336120-743999BOEING COMPANY, THEDBA BOEING
065-336120-70ESK8SABRELINER CORPORATION
Technical Data | NSN 5306-00-257-7399
Characteristic Specifications
THREAD SERIES DESIGNATOR UNF
NOMINAL THREAD DIAMETER0.438 INCHES
THREAD QUANTITY PER INCH20
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.312 INCHES MINIMUM
FASTENER LENGTH1.717 INCHES NOMINAL
MINIMUM TENSILE STRENGTH180000 POUNDS PER SQUARE INCH
STYLE DESIGNATOR CONCENTRIC HOLE UNTHREADED
CONCENTRIC HOLE DIAMETER0.194 INCHES NOMINAL
HEAD DIAMETER0.750 INCHES NOMINAL
HEAD HEIGHT0.125 INCHES NOMINAL
DISTANCE FROM CENTERLINE TO FLAT0.275 INCHES MINIMUM AND 0.285 INCHES MAXIMUM