Shop All MS Flat Washers - Military Standard - 800 Series
-min.jpg "18-8 Stainless Steel MS Flat Washers - 800 Series")
Military Standard Flat Washers
Fit Military Specifications | 800 Series
The overriding characteristics of military flat washers compared to commercial products is the extensive inspection and lot tractability, guaranteeing the chemical, physical and dimensional qualities. While commercial fasteners may look similar and happen to pass many tests given MS washers, the commercial fasteners lack the pedigree of guaranteed quality for chemical, physical and dimensional aspects that users who order MS flat washers rely on.
800 Series Military Standard Flat Washers are available in corrosion resistant 18-8 Stainless Steel. MS - Military Standards.
Not sure what material you need? Check out our Material Guide to find the right material for your needs!
Trade Names: 800 Series Flat Washers, MS Flat Washers, MS washers.
Military Flat Washer Specifications
| Washer Size | Inner Diameter (ID) | Outer Diameter (OD) | Thickness |
| #0-801 | Max 0.078" - Min 0.075" | Max 0.187" - Min 0.185" | Max 0.025" - Min 0.016" |
| #2-802 | Max 0.093" - Min 0.090" | Max 0.250" - Min 0.200" | Max 0.025" - Min 0.016" |
| #4-803 | Max 0.125" - Min 0.115" | Max 0.250" - Min 0.230" | Max 0.028" - Min 0.027" |
| #4-804 | Max 0.125" - Min 0.115" | Max 0.312" - Min 0.302" | Max 0.040" - Min 0.025" |
| #6-805 | Max 0.156" - Min 0.150" | Max 0.312" - Min 0.302" | Max 0.048" - Min 0.027" |
| #6-806 | Max 0.156" - Min 0.150" | Max 0.375" - Min 0.365" | Max 0.065" - Min 0.036" |
| #8-807 | Max 0.187" - Min 0.177" | Max 0.375" - Min 0.365" | Max 0.065" - Min 0.036" |
| #8-841 | Max 0.188" - Min 0.178" | Max 0.438" - Min 0.428" | Max 0.065" - Min 0.036" |
| #10-808 | Max 0.218" - Min 0.208" | Max 0.437" - Min 0.427" | Max 0.065" - Min 0.036" |
| #10-809 | Max 0.250" - Min 0.240" | Max 0.562" - Min 0.556" | Max 0.080" - Min 0.051" |
| #10-842 | Max 0.219" - Min 0.209" | Max 0.500" - Min 0.495" | Max 0.065" - Min 0.036" |
| 1/4"-810 | Max 0.281" - Min 0.271" | Max 0.625" - Min 0.615" | Max 0.080" - Min 0.051" |
| 1/4"-811 | Max 0.312" - Min 0.302" | Max 0.750" - Min 0.730" | Max 0.080" - Min 0.051" |
| 5/16"-812 | Max 0.343" - Min 0.333" | Max 0.687" - Min 0.677" | Max 0.080" - Min 0.051" |
| 5/16"-813 | Max 0.375" - Min 0.365" | Max 0.875" - Min 0.865" | Max 0.104" - Min 0.064" |
| 3/8"-814 | Max 0.406" - Min 0.396" | Max 0.812" - Min 0.802" | Max 0.080" - Min 0.051" |
| 3/8"-815 | Max 0.437" - Min 0.417" | Max 1.000" - Min 0.950" | Max 0.104" - Min 0.064" |
| 7/16"-816 | Max 0.468" - Min 0.448" | Max 0.921" - Min 0.901" | Max 0.080" - Min 0.051" |
| 7/16"-817 | Max 0.500" - Min 0.495" | Max 1.250" - Min 1.150" | Max 0.104" - Min 0.064" |
| 1/2"-818 | Max 0.531" - Min 0.521" | Max 1.062" - Min 1.000" | Max 0.121" - Min 0.074" |
| 1/2"-819 | Max 0.562" - Min 0.552" | Max 1.375" - Min 1.325" | Max 0.132" - Min 0.086" |
| 5/8"-820 | Max 0.656" - Min 0.636" | Max 1.312" - Min 1.302" | Max 0.121" - Min 0.074" |
| 5/8"-821 | Max 0.687" - Min 0.677" | Max 1.750" - Min 1.650" | Max 0.160" - Min 0.108" |
| 3/4"-822 | Max 0.812" - Min 0.799" | Max 1.500" - Min 1.450" | Max 0.160" - Min 0.108" |
| 3/4"-823 | Max 0.812" - Min 0.799" | Max 2.000" - Min 1.900" | Max 0.177" - Min 0.122" |
| 7/8"-824 | Max 0.937" - Min 0.907" | Max 1.750" - Min 1.650" | Max 0.160" - Min 0.108" |
| 7/8"-825 | Max 0.937" - Min 0.907" | Max 2.250" - Min 2.150" | Max 0.192" - Min 0.136" |
| 1"-826 | Max 1.062" - Min 1.000" | Max 2.000" - Min 1.900" | Max 0.160" - Min 0.108" |
| 1"-827 | Max 1.062" - Min 1.000" | Max 2.500" - Min 2.400" | Max 0.192" - Min 0.136" |
