-- Spring washers and other lock washers

HS v2007 Code: 731821

Revisions to 731821

Classification codes are adjusted frequently. The code may have been revised or replaced between system versions. The table below shows the history (newest to oldest) of the code 731821. The most recent 1 version of this code (731821) is in the HS v2022 system:

This page shows a legacy version of code 731821 ( HS v2007).

Family tree for -- spring washers and other lock washers

    graph LR
    A["<a href='/classifications/hs/v2007/73'>73: Articles of iron or steel</a>"]
A --> B["<a href='/classifications/hs/v2007/7318'>7318: Screws, bolts, nuts, coach screws, screw hooks, rivets, cotters, cotter-pins, washers (including spring washers) and similar articles, of iron or steel.</a>"]
B --> C["<a href='/classifications/hs/v2007/731821'>731821: --  Spring washers and other lock washers</a>"]

    B --> D["<a href='/classifications/hs/v2007/731811'>731811: --  Coach screws</a>"]
B --> E["<a href='/classifications/hs/v2007/731812'>731812: --  Other wood screws</a>"]
B --> F["<a href='/classifications/hs/v2007/731813'>731813: --  Screw hooks and screw rings</a>"]
B --> G["<a href='/classifications/hs/v2007/731814'>731814: --  Self-tapping screws</a>"]
B --> H["<a href='/classifications/hs/v2007/731815'>731815: --  Other screws and bolts, whether or not with their nuts or washers</a>"]
B --> I["<a href='/classifications/hs/v2007/731816'>731816: --  Nuts</a>"]
B --> J["<a href='/classifications/hs/v2007/731819'>731819: --  Other</a>"]
B --> K["<a href='/classifications/hs/v2007/731822'>731822: --  Other washers</a>"]
B --> L["<a href='/classifications/hs/v2007/731823'>731823: --  Rivets</a>"]
B --> M["<a href='/classifications/hs/v2007/731824'>731824: --  Cotters and cotter-pins</a>"]
B --> N["<a href='/classifications/hs/v2007/731829'>731829: --  Other</a>"]

    

    %% Color coordination by level

    classDef level1 color:#000,fill:#a8f9ff,stroke:#333,stroke-width:2px
    classDef level2 color:#000,fill:#e0a458,stroke:#333,stroke-width:1px
    classDef level3 color:#000,fill:#419d78,stroke:#333,stroke-width:1px
    classDef level4 color:#000,fill:#c04abc,stroke:#333,stroke-width:1px
    classDef level5 color:#000,fill:#f1c40f,stroke:#333,stroke-width:1px
    classDef level6 color:#000,fill:#f1c40f,stroke:#333,stroke-width:1px
    classDef highlight color:#000,fill:#fff,stroke:#000,stroke-width:5px



  %% Apply classes
  class A level2
class B level4
class C level6
class D level6
class E level6
class F level6
class G level6
class H level6
class I level6
class J level6
class K level6
class L level6
class M level6
class N level6

  class C highlight

  %% class A level1
  %% class B,C level2
  %% class D,E,F,G,H,I level2
  %% class J,K,L,M,N,O,P level3
  %% class C highlight