NSN 5306-00-273-2546

Part Details | INTERNALLY RELIEVED BODY BOLT

5306-00-273-2546 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: 1202648101, 1202648-101, 5306-00-273-2546, 00-273-2546, 5306002732546, 002732546

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53JUL 30, 197300-273-254606676 ( BOLT, INTERNALLY RELIEVED BODY )
REFERENCE DRAWINGS & PICTURES

UNDERCUT HEXAGON

CONCENTRIC HOLE UNTHREADED

Cross Reference | NSN 5306-00-273-2546
Part Number Cage Code Manufacturer
1202648-10198897LOCKHEED MARTIN CORPORATIONDBA LOCKHEED MARTIN AERONAUTICS
Technical Data | NSN 5306-00-273-2546
Characteristic Specifications
THREAD SERIES DESIGNATOR UNF
NOMINAL THREAD DIAMETER0.250 INCHES
THREAD QUANTITY PER INCH28
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.358 INCHES MINIMUM AND 0.403 INCHES MAXIMUM
FASTENER LENGTH4.451 INCHES MINIMUM AND 4.466 INCHES MAXIMUM
MINIMUM TENSILE STRENGTH135000 POUNDS PER SQUARE INCH
STYLE DESIGNATOR CONCENTRIC HOLE UNTHREADED
CONCENTRIC HOLE DEPTH3.670 INCHES MINIMUM AND 3.685 INCHES MAXIMUM
CONCENTRIC HOLE DIAMETER0.483 INCHES MINIMUM AND 0.490 INCHES MAXIMUM
HEAD STYLE3 UNDERCUT HEXAGON
HEAD DIAMETER0.766 INCHES NOMINAL
HEAD HEIGHT0.065 INCHES MINIMUM AND 0.080 INCHES MAXIMUM
WIDTH BETWEEN FLATS0.688 INCHES NOMINAL
PART NAME ASSIGNED BY CONTROLLING AGENCYNAVY SPECIAL PROJECT