Product Description
DIN 440-R round flat washer, 6.6 x 22 x 2 mm, Article number 440R066. Property class / material: steel, surface finish plain. Round Flat Washer manufactured to DIN 440-R. 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 440-R
- Standard description
- R
- Property class / grade
- STEEL
- Class (detailed)
- STEEL
- Material hardness
- HV100
- Surface treatment
- Plain (no plating)
- Surface treatment code
- PLAIN
- Diameter
- 6 mm
- Inner diameter
- 6.6 mm
- Outer diameter
- 22 mm
- Thickness
- 2 mm
- Article number
- 440R066
- Category
- Washers / Plain Washers
Standards & Compliance
- Standard
- DIN 440-R
- Size / Series
- 6.6 x 22 x 2 mm
- Material
- Steel
- HS Code
- 731822
Product Documentation
More from Bufab
Bufab
DIN 440-R Round Flat Washer, Steel, 6.6 x 22 x 2 mm, Zinc Plated
440R0661
Bufab
DIN 440-R Round Flat Washer, Steel, 9 x 28 x 3 mm, Zinc Plated (440R0901)
Bufab
DIN 440-R Round Flat Washer, Steel, 11 x 34 x 3 mm, Zinc Plated
440R1101
Bufab
DIN 440-R Round Flat Washer, Steel, 13.5 x 44 x 4 mm, Zinc Plated
440R1351
Bufab
DIN 440-R Round Flat Washer, Steel, 17.5 x 56 x 5 mm, Zinc Plated (440R1751)
Bufab
DIN 440-R Round Flat Washer, Stainless A2, 6.6 x 22 x 2 mm (440RA2066)
Bufab
DIN 440-R Round Flat Washer, Stainless A2, 17.5 x 56 x 5 mm
440RA2175
Bufab
DIN 440-R Round Flat Washer, Stainless A4, 5.5 x 18 x 2 mm
440RA4055
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 440R066?
- 440R066 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 440R066.
- What is the HS code for 440R066?
- The customs tariff (HS) code for 440R066 is 731822.
- Who manufactures 440R066?
- 440R066 is a Bufab product in the C-Parts range.
- Is a datasheet available for 440R066?
- Yes — the 440R066 datasheet can be viewed and downloaded on this page.
- What is the minimum order quantity for 440R066?
- The minimum order quantity is 1.
- Is 440R066 available?
- Yes — 440R066 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).