Spring washers and other lock washers (HS 731821)
Spring washers and other lock washers (HS 731821) has 8,909 U.S. import bill-of-lading shipment records between May 2019 and Aug 2026. The largest U.S. importer of Spring washers and other lock washers is AS BOSCH FLORENCE KY, with 653 shipments, followed by THYSSENKRUPP BILSTEIN OF AMERICA and DAEWON AMERICA INC. The leading supplier is GUEDE GMBH, with 403 shipments, followed by JOPP AUTOMOTIVE GMBH and SEEGER ORBIS GMBH CO. Goods originate mainly from GERMANY and CHINA, arriving primarily at CHARLESTON, SC. Import volume has held steady over the past 12 months versus the prior year.
Sourced from U.S. Customs bill of lading data · Updated monthly · Data through August 2026Cite as: ImportDoor, U.S. Customs bill of lading data (data through August 2026), https://www.importdoor.com/products/731821-spring-washers-and-other-lock-washers
See all 8,909 shipments of HS 731821 with dates, ports, consignees, filters and CSV export in the ImportDoor dashboard.
Open in dashboardShipments by month (last 24 months)
Trade flow: top suppliers → U.S. importers
The strongest supplier-importer relationships for Spring washers and other lock washers (HS 731821), by shipment volume. Hover a ribbon for details; click a name to open its profile.
The largest relationship is JOPP AUTOMOTIVE GMBH → AS BOSCH FLORENCE KY with 274 shipments, followed by SEEGER ORBIS GMBH CO → AS BOSCH FLORENCE KY (181) and HUGO BENZING GMBH & CO → ZF TRANSMISSIONS GRAY COURT LLC 24 (77).
Top U.S. importers
| Importer | Shipments |
|---|---|
| AS BOSCH FLORENCE KY | 653 |
| THYSSENKRUPP BILSTEIN OF AMERICA | 436 |
| DAEWON AMERICA INC | 220 |
| LINDSTROM METRIC LLC | 139 |
| FESTO CORP | 114 |
| CONTINENTAL AUTOMOTIVE SYSTEMS INC | 111 |
| ZIPWALL LLC | 110 |
| CONTINENTAL AUTOMOTIVE SYSTEMS | 108 |
| THE SPRING STEEL FASTENER CO LT | 93 |
| SESE INDUSTRIAL SERVICES US CORP | 83 |
Top suppliers
| Supplier | Shipments |
|---|---|
| GUEDE GMBH | 403 |
| JOPP AUTOMOTIVE GMBH | 290 |
| SEEGER ORBIS GMBH CO | 257 |
| HUGO BENZING GMBH & CO | 254 |
| CRRC GUIYANG CO LTD | 205 |
| SCHERDEL GMBH | 203 |
| POSCO INTERNATIONAL CORP | 160 |
| VALFSAN DIS TIC LTD | 156 |
| LANG MENKE GMBH | 144 |
| RUDOLF RAFFLENBEUL EILPER | 140 |
Origin countries
| Country | Shipments |
|---|---|
| GERMANY | 3,531 |
| CHINA | 2,545 |
| TAIWAN | 599 |
| REPUBLIC OF KOREA | 401 |
| BELGIUM | 276 |
| INDIA | 265 |
| JAPAN | 221 |
| TURKEY | 206 |
| ITALY | 117 |
| SPAIN | 113 |
Ports of unlading
| U.S. port | Shipments |
|---|---|
| CHARLESTON, SC | 1,925 |
| NEW YORK/NEWARK AREA, NEWARK, NJ | 1,702 |
| LOS ANGELES, CA | 1,069 |
| LONG BEACH, CA | 932 |
| NORFOLK, VA | 885 |
| HOUSTON, TX | 494 |
| SAVANNAH, GA | 458 |
| MOBILE, AL | 290 |
| TACOMA, WA | 289 |
| NEW YORK, NY | 165 |
Harmonized System classification
HS code 731821 — Spring washers and other lock washers. The Harmonized System is the international standard for classifying traded goods; U.S. Customs records this 6-digit code on every bill of lading.
Not sure this is the right code? Search all 5,700+ subheadings with the free HS code lookup, or see which product categories are growing in our quarterly State of U.S. Imports reports.
More products under HS 7318
Other six-digit codes in HS 7318: Screws, bolts, nuts, coach screws, screw hooks, rivets, cotters, cotter pins, washers (including spring washers) and similar articles, of iron or steel, with their U.S. import volume.
Frequently asked questions about importing Spring washers and other lock washers
Who imports Spring washers and other lock washers (HS 731821)?
Based on U.S. Customs bill-of-lading records, the top U.S. importers of Spring washers and other lock washers include AS BOSCH FLORENCE KY, THYSSENKRUPP BILSTEIN OF AMERICA, DAEWON AMERICA INC, LINDSTROM METRIC LLC, and FESTO CORP.
Who is the largest U.S. importer of Spring washers and other lock washers?
AS BOSCH FLORENCE KY is the largest U.S. importer of Spring washers and other lock washers (HS 731821), with 653 bill-of-lading shipment records.
Who are the top suppliers of Spring washers and other lock washers?
Leading suppliers shipping Spring washers and other lock washers (HS 731821) to the U.S. include GUEDE GMBH, JOPP AUTOMOTIVE GMBH, SEEGER ORBIS GMBH CO, HUGO BENZING GMBH & CO, and CRRC GUIYANG CO LTD.
How many U.S. shipments of Spring washers and other lock washers are there?
ImportDoor has 8,909 U.S. import shipment records under HS code 731821, spanning May 2019 to Aug 2026.
Where is Spring washers and other lock washers imported from?
Spring washers and other lock washers is imported into the U.S. primarily from GERMANY, CHINA, and TAIWAN.
Find Spring washers and other lock washers importers & suppliers
Get the complete list of U.S. importers and global suppliers for HS 731821, with contact details and container-level shipment records on ImportDoor.
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