Product Details | MACHINE BOLT

5306-00-660-2762 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: FFB575TYPE1GRADE1, 5306-00-660-2762, 00-660-2762, 5306006602762, 006602762

Hardware and Abrasives | Bolts

Supply Group (FSG) NSN Assign. NIIN
53 01 JAN 1963 00-660-2762

Drawings & Photos | NSN 5306-00-660-2762


Cross Reference | NSN 5306-00-660-2762

Part Number Cage Code Manufacturer
FFB575TYPE1GRADE1 81348 FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES

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Technical Data | NSN 5306-00-660-2762

Characteristic Specifications
THREAD SERIES DESIGNATOR UNC
NOMINAL THREAD DIAMETER 0.438 INCHES
THREAD QUANTITY PER INCH 14
THREAD CLASS 2A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH 1.125 INCHES MINIMUM
FASTENER LENGTH 3.000 INCHES NOMINAL
MATERIAL STEEL OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION SAE GR 1 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENT ZINC OVERALL
HARDNESS RATING 95.0 ROCKWELL B MAXIMUM OVERALL
MINIMUM TENSILE STRENGTH 55000 POUNDS PER SQUARE INCH
HEAD STYLE C13 SQUARE
HEAD HEIGHT 0.278 INCHES MINIMUM AND 0.316 INCHES MAXIMUM
WIDTH BETWEEN FLATS 0.603 INCHES MINIMUM AND 0.625 INCHES MAXIMUM
GRIP LENGTH 1.875 INCHES NOMINAL
FEATURES PROVIDED UNFINISHED HEAD
NONDEFINITIVE SPEC/STD DATA 1 TYPE
MANUFACTURERS CODE 81348
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE FFB575TYPE1GRADE1

Restrictions/Controls & Freight Information | NSN 5306-00-660-2762

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