NSN 5306-00-003-6544

Part Details | INTERNALLY RELIEVED BODY BOLT

5306-00-003-6544 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: A51B2466813, A51B24668-13, A51B2466813, A51B24668-13, 5306-00-003-6544, 00-003-6544, 5306000036544, 000036544

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53MAY 26, 197200-003-654406676 ( BOLT, INTERNALLY RELIEVED BODY )
REFERENCE DRAWINGS & PICTURES

UNDERCUT HEXAGON

CONCENTRIC HOLE UNTHREADED

Cross Reference | NSN 5306-00-003-6544
Part Number Cage Code Manufacturer
A51B24668-1326512NORTHROP GRUMMAN SYSTEMS CORPORATIONDIV MISSION SYSTEMS
A51B24668-1361174NORTHROP GRUMMAN SYSTEMS CORPORATIONDIV NORTHROP GRUMMAN AEROSPACE
Technical Data | NSN 5306-00-003-6544
Characteristic Specifications
THREAD SERIES DESIGNATOR UNJF
NOMINAL THREAD DIAMETER0.375 INCHES
THREAD QUANTITY PER INCH24
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.610 INCHES MINIMUM
FASTENER LENGTH3.564 INCHES MINIMUM AND 3.569 INCHES MAXIMUM
STYLE DESIGNATOR CONCENTRIC HOLE UNTHREADED
SHOULDER DIAMETER1.1175 INCHES MINIMUM AND 1.1186 INCHES MAXIMUM
SHOULDER LENGTH2.954 INCHES MINIMUM AND 2.959 INCHES MAXIMUM
CONCENTRIC HOLE DEPTH2.654 INCHES MINIMUM AND 2.669 INCHES MAXIMUM
CONCENTRIC HOLE DIAMETER0.499 INCHES MINIMUM AND 0.506 INCHES MAXIMUM
HEAD STYLE3 UNDERCUT HEXAGON
HEAD DIAMETER1.710 INCHES NOMINAL
HEAD HEIGHT0.140 INCHES MINIMUM AND 0.150 INCHES MAXIMUM
WIDTH BETWEEN FLATS1.625 INCHES NOMINAL