NFE 25-511 Zinc Plated Contact Washers
  • NFE 25-511 Zinc Plated Contact WashersNFE 25-511 Zinc Plated Contact Washers

NFE 25-511 Zinc Plated Contact Washers

If you are looking to purchase NFE 25-511 Zinc Plated Contact Washers in any quantity, please consider Fengyi for your direct purchasing needs. Our products have good quality and price advantages, we will provide you with the best after-sales service and timely delivery, and look forward to becoming your long-term partner in China.

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Product Description


NFE 25-511 Zinc Plated Contact Washers is an anti-loosening and anti-slip washer with teeth on one side. The product is widely used in electrical appliances, elevators, power towers, medical machinery, etc. It is an improved dish-shaped product, and its quality meets NFE-S standards. The working principle is to use the tension generated by the product's rebound after being stressed to prevent loosening and slipping.




NFE25-511 Knurled Spring Washers
size d1 d2 H d3 d4 h

Nominal Size min max Nominal Size min max min max min min max
M3 3 3.1 3.35 6 5.76 6.24 0.7 0.9 5.5 3.6 4.1 0.5
8 7.71 8.29 0.8 1 5.5 3.6 4.1 0.6
10 9.71 1029 0.95 1.2 5.5 3.6 4.1 0.6
M4 4 4.1 4.4 8 7.71 8.29 1 1.2 7 4.7 5.2 0.8
10 9.71 10.29 1.15 1.4 7 4.7 5.2 0.9
14 13.65 14.35 1.4 1.8 7 4.7 5.2 1
M5 5 5.1 5.4 10 9.71 10.29 1.25 1.5 8 5.7 6.2 1
12 11.65 12.35 1.45 1.8 8 5.7 6.2 1.1
16 15.65 1635 1.7 2.1 8 5.7 6.2 1.2
M6 6 6.1 6.4 12 11.65 12.35 1.55 1.85 10 6.8 7.4 1.2
14 13.65 14.35 1.75 2.1 10 6.8 7.4 1.3
18 17.65 18.35 2.1 2.5 10 6.8 7.4 1.4
M8 8 8.2 8.58 16 15.65 16.35 1.8 2.2 13 9.2 9.8 1.4
18 17.65 18.35 1.9 2.35 13 9.2 9.8 1.4
22 21.58 22.42 2.2 2.7 13 9.2 9.8 1.6
M10 10 10.2 10.56 20 19.58 20.42 2.1 2.6 16 11.2 11.9 1.6
22 21.58 22.42 2.25 2.75 16 11.2 11.9 1.6
27 26.58 27.42 2.6 3.1 16 11.2 11.9 1.8
M12 12 12.4 12.83 24 23.58 24.42 2.4 0.29 18 13.7 14.4 1.8
27 26.58 27.42 2.6 3.1 18 13.7 14.4 1.8
32 31.5 32.5 3.1 3.6 18 13.7 14.4 2
M14 14 14.4 14.83 30 29.58 30.42 3.2 3.7 21 15.7 16.4 2.4
M16 16 16.4 16.83 32 31.5 32.5 3.6 4.1 24 17.7 18.4 2.8
M20 20 21.02 21.02 40 39.5 40.5 4.3 4.9 30 23.1 22.8 3.2

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