Product Description
DIN 127-B spring lock washer (form B), 12.2 x 21.1 x 2.5 mm, Article number 127A4122. Made in stainless steel a4. Spring Lock Washer manufactured to DIN 127. 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 127
- Standard description
- B
- Property class / grade
- A4
- Class (detailed)
- A4
- Material hardness
- -
- Surface treatment
- Plain (no plating)
- Surface treatment code
- PLAIN
- Diameter
- 12 mm
- Inner diameter
- 12.2 mm
- Outer diameter
- 21.1 mm
- Thickness
- 2.5 mm
- Article number
- 127A4122
- Category
- Washers / Spring Lock Washers
Standards & Compliance
- Standard
- DIN 127
- Size / Series
- 12.2 x 21.1 x 2.5 mm
- Material
- Stainless A4
- 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 127A4122?
- 127A4122 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 127A4122.
- What is the HS code for 127A4122?
- The customs tariff (HS) code for 127A4122 is 731821.
- Who manufactures 127A4122?
- 127A4122 is a Bufab product in the C-Parts range.
- Is a datasheet available for 127A4122?
- Yes — the 127A4122 datasheet can be viewed and downloaded on this page.
- What is the minimum order quantity for 127A4122?
- The minimum order quantity is 1.
- Is 127A4122 available?
- Yes — 127A4122 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).