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Cryogenic Stainless Lock Washer

An AISI 316 stainless steel spring washer tested for cryogenic service in LNG applications, providing locking in extreme low-temperature environments. Its non-threaded spring design classifies it under this tariff item.

Import Duty Rates by Country of Origin

Origin CountryMFN TariffSurtaxesTotal Effective Rate
πŸ‡¨πŸ‡³ChinaFreeβ€”Free
πŸ‡²πŸ‡½MexicoFreeβ€”Free
πŸ‡ΊπŸ‡ΈUnited StatesFree+50.0%50%
πŸ‡©πŸ‡ͺGermanyFreeβ€”Free
πŸ‡―πŸ‡΅JapanFreeβ€”Free

More Specific Codes

This product may fall under a more specific subheading:

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

7318.22.00Same rate: Free

If the washer is not a spring type

Non-spring stainless washers fall under other washers.

Not sure which classification is right?

The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item β€” and can price the duty on it in the same conversation.

Import Tips & Compliance

β€’ Ensure the stainless steel grade (AISI 316) is clearly documented on the commercial invoice

β€’ Provide test certificates for cryogenic service if requested by CBSA

β€’ Verify the washer is not part of a valve or other article of Section XVI

Related Products under Tariff item 7318.21.00

1/4 Inch Zinc Plated Spring Lock Washer

A carbon steel split ring washer with zinc plating, designed to provide axial flex and prevent fastener loosening under vibration. Its non-threaded helical split design classifies it as a spring lock washer of iron or steel.

Anti-Vibration Curved Spring Washer

A multi-curved steel washer that absorbs vibration through controlled deflection, providing locking action in automotive and engine applications. Its non-threaded spring design places it under this tariff item as a spring lock washer.

Belleville Disc Spring Washer 20mm OD

A conical steel disc washer that flattens under load to maintain tension and absorb shock, used in high-pressure flange applications. Its elastic deformation qualifies it as a spring lock washer under this tariff item.

DIN 127 Spring Lock Washer Type B

A heavy-duty rectangular steel washer per DIN 127 Type B standard, designed for high preload applications in European machinery. Its non-threaded spring lock design places it under this tariff item.

Finger Spring Washer Assortment Pack

A set of steel washers with radial fingers that deflect to lock fasteners, assorted sizes for maintenance and MRO applications. Packaged for retail but classified as non-threaded spring lock washers under this tariff item.

High-Carbon Music Wire Lock Washer

A precision-formed washer from high-carbon music wire for maximum spring properties in small fasteners, used in instruments and precision equipment. Its non-threaded spring design qualifies it under this tariff item.