Product Details | INTERNALLY RELIEVED BODY BOLT

5306-00-250-5487 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.

Part Alternates: 8713862, 5306-00-250-5487, 00-250-5487, 5306002505487, 002505487

Hardware and Abrasives | Bolts

Supply Group (FSG) NSN Assign. NIIN
53 19 NOV 1969 00-250-5487

Drawings & Photos | NSN 5306-00-250-5487


Cross Reference | NSN 5306-00-250-5487

Part Number Cage Code Manufacturer
8713862 19207 U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM

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Technical Data | NSN 5306-00-250-5487

Characteristic Specifications
THREAD SERIES DESIGNATOR UNC
NOMINAL THREAD DIAMETER 0.375 INCHES
THREAD QUANTITY PER INCH 16
THREAD CLASS 3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH 0.938 INCHES MINIMUM
FASTENER LENGTH 3.093 INCHES NOMINAL
MATERIAL STEEL COMP 8637 OR STEEL COMP 8640 OR STEEL COMP 4140 OR STEEL COMP 8740 OVERALL
HARDNESS RATING 302.0 BRINELL STANDARD MINIMUM AND 341.0 BRINELL STANDARD MAXIMUM OVERALL
STYLE DESIGNATOR B46A COUNTERBORE THREADED
CONCENTRIC HOLE DEPTH 1.187 INCHES NOMINAL
CONCENTRIC HOLE DIAMETER 0.312 INCHES NOMINAL
THREAD SERIES UNC COUNTERBORE
NOMINAL THREAD SIZE 0.375 INCHES COUNTERBORE
THREADS PER INCH 16 COUNTERBORE
INTERNAL THREAD CLASS 3B CONCENTRIC HOLE
INTERNAL THREAD DIRECTION RIGHT-HAND COUNTERBORE
INTERNAL THREAD LENGTH 0.875 INCHES NOMINAL COUNTERBORE
HEAD STYLE C1 HEXAGON
HEAD HEIGHT 1.938 INCHES NOMINAL
WIDTH BETWEEN FLATS 0.562 INCHES NOMINAL

Restrictions/Controls & Freight Information | NSN 5306-00-250-5487

Category Code Description
Hazardous Material Indicator CodeNThere is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials
Demilitarization Code:ANon-Munitions List Item/ Non-Strategic List Item - Demilitarization not required.
Precious Metals Indicator Code:UPrecious metal type is unknown
Criticality Code:X The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Category Code Description
No Freight Information