Home | Flat Washers in Every Size, Material & Tolerance

Flat Washers in Every Size, Material & Tolerance

Flat washers are essential components in fastener assemblies, distributing load evenly across mating surfaces to prevent wear, protect finishes, and ensure joint integrity. As a leading flat washer manufacturer, Superior Washer & Gasket Corp supplies standard washers, large flat washers, and custom flat washers in aluminum, brass, copper, stainless steel, carbon steel, and nylon-manufactured to your exact specifications.

Our ISO 9001:2015 certified quality management system guarantees consistent dimensional accuracy across every order, from prototype quantities to high-volume production runs. Whether you need special flat washers for a unique application or mil-spec flat washers for aerospace and defense, we deliver reliable solutions made in the U.S.A.

  • Standard and custom flat washer sizes in stock
  • Wide selection of materials including stainless steel, brass, aluminum, and nylon
  • ISO 9001:2015 certified manufacturing and quality control
  • Custom flat washers produced to print or sample
  • Competitive pricing with fast turnaround

Showing 4401–4450 of 25,000+ products

SKU ID OD Thickness Material ID TOL OD TOL Quantity

300-3087-005

ID 1.189
OD 1.5
Thickness 0.005
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-3088-105

ID 1.19
OD 1.996
Thickness 0.105
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-3089-119

ID 1.19
OD 2.498
Thickness 0.119
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-309-031

ID 0.128
OD 0.509
Thickness 0.031
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-3090-039

ID 1.192
OD 1.75
Thickness 0.039
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-3091-077

ID 1.198
OD 1.75
Thickness 0.077
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-3092-010

ID 1.202
OD 1.371
Thickness 0.01
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-3093-010

ID 1.202
OD 1.5
Thickness 0.01
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-3094-009

ID 1.23
OD 1.415
Thickness 0.009
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-3095-005

ID 1.231
OD 1.419
Thickness 0.005
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-3096-002

ID 1.235
OD 1.446
Thickness 0.002
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-3097-016

ID 1.239
OD 1.609
Thickness 0.016
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-3098-005

ID 1.247
OD 1.375
Thickness 0.005
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-3099-006

ID 1.247
OD 1.5
Thickness 0.006
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-31-015

ID 0.0
OD 0.5
Thickness 0.015
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-310-005

ID 0.128
OD 0.561
Thickness 0.005
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-3100-030

ID 1.251
OD 1.622
Thickness 0.03
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-3101-002

ID 1.252
OD 1.373
Thickness 0.002
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-3102-033

ID 1.252
OD 1.499
Thickness 0.033
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-3103-030

ID 1.253
OD 1.621
Thickness 0.03
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-3104-030

ID 1.254
OD 1.488
Thickness 0.03
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-3105-090

ID 1.254
OD 2.503
Thickness 0.09
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-3106-035

ID 1.255
OD 1.488
Thickness 0.035
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-3107-036

ID 1.256
OD 1.488
Thickness 0.036
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-3108-065

ID 1.256
OD 1.619
Thickness 0.065
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-3109-032

ID 1.259
OD 1.468
Thickness 0.032
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-311-052

ID 0.128
OD 0.607
Thickness 0.052
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-3110-033

ID 1.26
OD 1.746
Thickness 0.033
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-3111-015

ID 1.265
OD 1.737
Thickness 0.015
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-3112-030

ID 1.266
OD 1.498
Thickness 0.03
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-3113-015

ID 1.269
OD 2.0
Thickness 0.015
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-3114-020

ID 1.274
OD 2.031
Thickness 0.02
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-3115-029

ID 1.277
OD 1.703
Thickness 0.029
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-3116-005

ID 1.28
OD 1.687
Thickness 0.005
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-3117-117

ID 1.281
OD 2.5
Thickness 0.117
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-3118-020

ID 1.282
OD 1.622
Thickness 0.02
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-3119-029

ID 1.287
OD 1.593
Thickness 0.029
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-312-032

ID 0.128
OD 0.625
Thickness 0.032
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-3120-033

ID 1.295
OD 1.465
Thickness 0.033
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-3121-032

ID 1.296
OD 1.465
Thickness 0.032
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-3122-029

ID 1.297
OD 1.464
Thickness 0.029
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-3123-029

ID 1.299
OD 1.875
Thickness 0.029
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-3124-031

ID 1.3
OD 1.685
Thickness 0.031
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-3125-034

ID 1.3
OD 1.686
Thickness 0.034
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-3126-033

ID 1.301
OD 1.876
Thickness 0.033
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-3127-021

ID 1.315
OD 1.592
Thickness 0.021
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-3128-065

ID 1.315
OD 1.625
Thickness 0.065
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-3129-029

ID 1.315
OD 2.0
Thickness 0.029
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-313-015

ID 0.128
OD 0.745
Thickness 0.015
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-3130-060

ID 1.319
OD 1.499
Thickness 0.06
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity