Product Details | MACHINE BOLT

5306-00-725-8606 An externally threaded fastener designed for insertion through holes in assembled parts and normally intended to be tightened or released by torquing a nut. The threaded and unthreaded portions are both of one nominal diameter of 0.190 inch (5 mm) or larger. The head is not designed to be held or driven with an inserted driver or by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. For items having a grip length portion machined to a tolerance of 0.0015 inch (0.038 mm) or less, BOLT, SHEAR. See also SCREW, CAP, HEXAGON HEAD and SCREW, MACHINE.

Part Alternates: FFB571, 5306-00-725-8606, 00-725-8606, 5306007258606, 007258606

Hardware and Abrasives | Bolts

Supply Group (FSG) NSN Assign. NIIN
53 01 JAN 1961 00-725-8606

Drawings & Photos | NSN 5306-00-725-8606


Cross Reference | NSN 5306-00-725-8606

Part Number Cage Code Manufacturer
FFB571 81348 FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES

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Technical Data | NSN 5306-00-725-8606

Characteristic Specifications
THREAD SERIES DESIGNATOR UNF
NOMINAL THREAD DIAMETER 0.750 INCHES
THREAD QUANTITY PER INCH 16
THREAD CLASS 2A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH 1.500 INCHES MINIMUM
FASTENER LENGTH 4.000 INCHES NOMINAL
MATERIAL STEEL OVERALL
MINIMUM TENSILE STRENGTH 48000 POUNDS PER SQUARE INCH
HEAD STYLE C1 HEXAGON
HEAD HEIGHT 0.548 INCHES MINIMUM AND 0.577 INCHES MAXIMUM
WIDTH BETWEEN FLATS 1.108 INCHES MINIMUM AND 1.125 INCHES MAXIMUM
GRIP LENGTH 2.500 INCHES NOMINAL
FEATURES PROVIDED FINISHED HEAD
NONDEFINITIVE SPEC/STD DATA B3 TYPE
DEPARTURE FROM CITED DOCUMENT AS MODIFIED BY THD CLASS
MANUFACTURERS CODE 81348
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE FFB571

Restrictions/Controls & Freight Information | NSN 5306-00-725-8606

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