Home | Phosphor Bronze Flat Washers - Spring-Tempered Corrosion-Resistant Washers

Phosphor Bronze Flat Washers - Spring-Tempered Corrosion-Resistant Washers

Phosphor bronze flat washers are valued for their combination of corrosion resistance, electrical conductivity, and spring temper properties-ideal for electrical connectors, marine hardware, and applications requiring a resilient, fatigue-resistant metal washer. Superior Washer & Gasket Corp manufactures phosphor bronze washers in standard and custom sizes.

Our ISO 9001:2015 certified specialty metal washer capabilities include phosphor bronze, Monel, Inconel, brass, and copper options-all manufactured in the U.S.A. with full material traceability. Custom phosphor bronze flat washers are produced to your exact dimensional specifications with competitive lead times.

  • Phosphor bronze for corrosion resistance and spring properties
  • Excellent electrical conductivity
  • Standard and custom phosphor bronze washer sizes
  • ISO 9001:2015 certified quality assurance
  • Made in the U.S.A.

Showing 1–50 of 103 products

SKU ID OD Thickness Material ID TOL OD TOL Quantity

675-10-002

ID 0.035
OD 0.073
Thickness 0.002
Material Phosphor Bronze
ID TOL +-.005
OD TOL +-.005
Quantity

675-100-005

ID 0.125
OD 0.375
Thickness 0.005
Material Phosphor Bronze
ID TOL +-.005
OD TOL +-.005
Quantity

675-101-016

ID 0.139
OD 0.31
Thickness 0.016
Material Phosphor Bronze
ID TOL +-.005
OD TOL +-.005
Quantity

675-102-025

ID 0.195
OD 0.436
Thickness 0.025
Material Phosphor Bronze
ID TOL +-.005
OD TOL +-.005
Quantity

675-103-032

ID 0.328
OD 0.495
Thickness 0.032
Material Phosphor Bronze
ID TOL +-.005
OD TOL +-.005
Quantity

675-104-010

ID 0.638
OD 0.794
Thickness 0.01
Material Phosphor Bronze
ID TOL +-.005
OD TOL +-.005
Quantity

675-105-010

ID 0.26
OD 0.732
Thickness 0.031
Material Phosphor Bronze
ID TOL +-.005
OD TOL +-.005
Quantity

675-106-016

ID 0.283
OD 0.606
Thickness 0.031
Material Phosphor Bronze
ID TOL +-.005
OD TOL +-.005
Quantity

675-107-016

ID 0.501
OD 0.598
Thickness 0.016
Material Phosphor Bronze
ID TOL +-.005
OD TOL +-.005
Quantity

675-109-016

ID 0.195
OD 0.372
Thickness 0.016
Material Phosphor Bronze
ID TOL +-.005
OD TOL +-.005
Quantity

675-11-012

ID 0.062
OD 0.087
Thickness 0.012
Material Phosphor Bronze
ID TOL +-.005
OD TOL +-.005
Quantity

675-110-030

ID 0.43
OD 0.674
Thickness 0.03
Material Phosphor Bronze
ID TOL +-.005
OD TOL +-.005
Quantity

675-111-010

ID 0.221
OD 0.875
Thickness 0.01
Material Phosphor Bronze
ID TOL +-.005
OD TOL +-.005
Quantity

675-112-016

ID 0.189
OD 0.4
Thickness 0.016
Material Phosphor Bronze
ID TOL +-.005
OD TOL +-.005
Quantity

675-113-016

ID 0.461
OD 0.67
Thickness 0.016
Material Phosphor Bronze
ID TOL +-.005
OD TOL +-.005
Quantity

675-12-005

ID 0.062
OD 0.118
Thickness 0.005
Material Phosphor Bronze
ID TOL +-.005
OD TOL +-.005
Quantity

675-13-010

ID 0.062
OD 0.125
Thickness 0.01
Material Phosphor Bronze
ID TOL +-.005
OD TOL +-.005
Quantity

675-14-005

ID 0.062
OD 0.167
Thickness 0.005
Material Phosphor Bronze
ID TOL +-.005
OD TOL +-.005
Quantity

675-15-031

ID 0.062
OD 0.187
Thickness 0.031
Material Phosphor Bronze
ID TOL +-.005
OD TOL +-.005
Quantity

675-16-008

ID 0.068
OD 0.156
Thickness 0.008
Material Phosphor Bronze
ID TOL +-.005
OD TOL +-.005
Quantity

675-17-031

ID 0.068
OD 0.188
Thickness 0.031
Material Phosphor Bronze
ID TOL +-.005
OD TOL +-.005
Quantity

675-18-010

ID 0.068
OD 0.199
Thickness 0.01
Material Phosphor Bronze
ID TOL +-.005
OD TOL +-.005
Quantity

675-19-006

ID 0.081
OD 0.161
Thickness 0.006
Material Phosphor Bronze
ID TOL +-.005
OD TOL +-.005
Quantity

675-20-031

ID 0.094
OD 0.218
Thickness 0.031
Material Phosphor Bronze
ID TOL +-.005
OD TOL +-.005
Quantity

675-21-005

ID 0.095
OD 0.139
Thickness 0.005
Material Phosphor Bronze
ID TOL +-.005
OD TOL +-.005
Quantity

675-22-032

ID 0.095
OD 0.25
Thickness 0.032
Material Phosphor Bronze
ID TOL +-.005
OD TOL +-.005
Quantity

675-23-010

ID 0.098
OD 0.156
Thickness 0.01
Material Phosphor Bronze
ID TOL +-.005
OD TOL +-.005
Quantity

675-24-016

ID 0.098
OD 0.218
Thickness 0.016
Material Phosphor Bronze
ID TOL +-.005
OD TOL +-.005
Quantity

675-25-010

ID 0.103
OD 0.186
Thickness 0.01
Material Phosphor Bronze
ID TOL +-.005
OD TOL +-.005
Quantity

675-26-031

ID 0.109
OD 0.312
Thickness 0.031
Material Phosphor Bronze
ID TOL +-.005
OD TOL +-.005
Quantity

675-27-016

ID 0.119
OD 0.271
Thickness 0.016
Material Phosphor Bronze
ID TOL +-.005
OD TOL +-.005
Quantity

675-28-005

ID 0.125
OD 0.187
Thickness 0.005
Material Phosphor Bronze
ID TOL +-.005
OD TOL +-.005
Quantity

675-29-020

ID 0.125
OD 0.209
Thickness 0.02
Material Phosphor Bronze
ID TOL +-.005
OD TOL +-.005
Quantity

675-30-031

ID 0.125
OD 0.25
Thickness 0.031
Material Phosphor Bronze
ID TOL +-.005
OD TOL +-.005
Quantity

675-31-010

ID 0.125
OD 0.281
Thickness 0.01
Material Phosphor Bronze
ID TOL +-.005
OD TOL +-.005
Quantity

675-32-031

ID 0.125
OD 0.375
Thickness 0.031
Material Phosphor Bronze
ID TOL +-.005
OD TOL +-.005
Quantity

675-33-018

ID 0.133
OD 0.315
Thickness 0.018
Material Phosphor Bronze
ID TOL +-.005
OD TOL +-.005
Quantity

675-34-005

ID 0.14
OD 0.218
Thickness 0.005
Material Phosphor Bronze
ID TOL +-.005
OD TOL +-.005
Quantity

675-35-031

ID 0.14
OD 0.406
Thickness 0.031
Material Phosphor Bronze
ID TOL +-.005
OD TOL +-.005
Quantity

675-36-032

ID 0.152
OD 0.242
Thickness 0.032
Material Phosphor Bronze
ID TOL +-.005
OD TOL +-.005
Quantity

675-37-006

ID 0.156
OD 0.375
Thickness 0.006
Material Phosphor Bronze
ID TOL +-.005
OD TOL +-.005
Quantity

675-38-031

ID 0.156
OD 0.437
Thickness 0.031
Material Phosphor Bronze
ID TOL +-.005
OD TOL +-.005
Quantity

675-39-031

ID 0.161
OD 0.312
Thickness 0.031
Material Phosphor Bronze
ID TOL +-.005
OD TOL +-.005
Quantity

675-40-005

ID 0.167
OD 0.271
Thickness 0.005
Material Phosphor Bronze
ID TOL +-.005
OD TOL +-.005
Quantity

675-41-015

ID 0.187
OD 0.262
Thickness 0.015
Material Phosphor Bronze
ID TOL +-.005
OD TOL +-.005
Quantity

675-42-031

ID 0.187
OD 0.312
Thickness 0.031
Material Phosphor Bronze
ID TOL +-.005
OD TOL +-.005
Quantity

675-43-062

ID 0.187
OD 0.437
Thickness 0.062
Material Phosphor Bronze
ID TOL +-.005
OD TOL +-.005
Quantity

675-44-040

ID 0.187
OD 0.5
Thickness 0.04
Material Phosphor Bronze
ID TOL +-.005
OD TOL +-.005
Quantity

675-45-003

ID 0.191
OD 0.232
Thickness 0.003
Material Phosphor Bronze
ID TOL +-.005
OD TOL +-.005
Quantity

675-46-025

ID 0.191
OD 0.347
Thickness 0.025
Material Phosphor Bronze
ID TOL +-.005
OD TOL +-.005
Quantity

Phosphor Bronze Flat Washer Frequently Asked Questions

Below are answers to some of the most common questions about phosphor bronze flat washers.

What are phosphor bronze flat washers?
Phosphor bronze flat washers are manufactured from copper-tin-phosphorus alloy, specifically Alloy 510. The addition of tin and phosphorus to copper significantly increases strength, hardness, wear resistance, and spring properties while retaining good corrosion resistance and electrical conductivity. Phosphor bronze is the material of choice for spring washers, electrical contacts, and bearing applications.

Why choose phosphor bronze over brass or copper?
Phosphor bronze has significantly higher tensile strength and hardness than either brass or copper, along with better fatigue and wear resistance. It retains its spring properties better under sustained loading than brass. For applications requiring a conductive, corrosion-resistant washer with spring-like resilience, phosphor bronze outperforms both brass and copper.

What are the typical applications for phosphor bronze washers?
Phosphor bronze washers are used in electrical connectors, switch components, relay assemblies, bearing bushings, marine hardware, and any application requiring a hard, conductive, corrosion-resistant washer. They are also used as spring washers and in applications where repetitive flexing would fatigue a brass or copper washer.

Can you make custom phosphor bronze flat washers?
Yes. Superior Washer manufactures custom phosphor bronze washers to your OD, ID, and thickness specifications. Contact us via the Quick Quote form or by phone.

Are your phosphor bronze flat washers made in the USA?
Yes. All phosphor bronze flat washers are manufactured in the United States under our ISO 9001:2015 certified Quality Management System. Material certifications are available upon request.

Phosphor bronze is one of several high-strength alloys we manufacture. Browse the full flat washers catalog to compare all available materials.