Product Description
DIN 137-A wave washer (form A), 1.8 x 4 x 0.25 mm, Article number 137A018. Property class / material: steel, surface finish plain. Wave Washer manufactured to DIN 137. Standard parts to the same standard, property class, dimensions and surface finish are interchangeable between manufacturers; confirm the controlling standard revision, any class-society or application approval, and the mating thread before substitution. Applications: load distribution and locking under bolt heads and nuts in machine building, structural steel, plant maintenance and marine outfitting.
Technical Specifications
- Standard
- DIN 137
- Standard description
- A
- Property class / grade
- STEEL
- Class (detailed)
- STEEL
- Material hardness
- HV420-490
- Surface treatment
- Plain (no plating)
- Surface treatment code
- PLAIN
- Diameter
- 1.7 mm
- Inner diameter
- 1.8 mm
- Outer diameter
- 4 mm
- Thickness
- 0.25 mm
- Washer Total Height
- 0.45 mm
- Article number
- 137A018
- Category
- Washers / Spring Wave Washers
Standards & Compliance
- Standard
- DIN 137
- Size / Series
- 1.8 x 4 x 0.25 mm
- Material
- Steel
- HS Code
- 731821
Product Documentation
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Technical guides
Catalogue entry last verified: 2026-09-30. A manufacturer datasheet is attached to this entry — confirm application-critical values against it.
Frequently asked questions
- Where can I buy 137A018?
- 137A018 can be ordered from cballast.com as a Bufab catalogue item: request a quotation on this page or email sales@cballast.com, and the order ships worldwide.
- What is the manufacturer part number for this Bufab product?
- The manufacturer part number is 137A018.
- What is the HS code for 137A018?
- The customs tariff (HS) code for 137A018 is 731821.
- Who manufactures 137A018?
- 137A018 is a Bufab product in the C-Parts range.
- Is a datasheet available for 137A018?
- Yes — the 137A018 datasheet can be viewed and downloaded on this page.
- What is the minimum order quantity for 137A018?
- The minimum order quantity is 1.
- Is 137A018 available?
- Yes — 137A018 is available to order: fulfilment is from supplier stock in cBallast's European network, dispatched directly from the warehouse to the customer, with the exact lead time stated in the quotation (reply within 24 hours).