Home | Military Washers & Mil-Spec Flat Washers - AN, MS, NAS Standards

Military Washers & Mil-Spec Flat Washers - AN, MS, NAS Standards

Superior Washer & Gasket Corp is a trusted manufacturer of mil-spec washers for defense, aerospace, and government applications. Our military washers-including military flat washers, mil spec flat washers, and milspec washers-are produced to exacting AN, MS, and NAS standards, ensuring optimal performance and interchangeability in mission-critical assemblies.

As an ISO 9001:2015 certified company, we implement a rigorous Quality Management System (QMS) regularly audited for compliance. We provide full material certifications and DFARS compliance documentation. All military grade washers and military washers are manufactured in the U.S.A. from qualified materials.

  • Mil-spec washers to AN, MS, and NAS standards
  • DFARS-compliant materials and documentation
  • Material certifications available
  • ISO 9001:2015 certified QMS
  • 100% U.S. manufactured

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Showing 901–950 of 1,345 products

SKU ID OD Thickness Material Drawing Quantity

NAS1149C0563R

ID 0.328
OD 0.562
Thickness 0.063
Material 301/302/304 A AMS5901,5516,5513
Drawing REV 7
Quantity

NAS1149C0616B

ID 0.39
OD 0.625
Thickness 0.016
Material 301 SS 1/4 HD AMS5517
Drawing REV 7
Quantity

NAS1149C0616R

ID 0.39
OD 0.625
Thickness 0.016
Material 301 SS 1/4 HD AMS5517
Drawing REV 7
Quantity

NAS1149C0632B

ID 0.39
OD 0.625
Thickness 0.032
Material 301/302/304 A AMS5901,5516,5513
Drawing REV 7
Quantity

NAS1149C0632R

ID 0.39
OD 0.625
Thickness 0.032
Material 301/302/304 A AMS5901,5516,5513
Drawing REV 7
Quantity

NAS1149C0663B

ID 0.39
OD 0.625
Thickness 0.063
Material 301/302/304 A AMS5901,5516,5513
Drawing REV 7
Quantity

NAS1149C0663R

ID 0.39
OD 0.625
Thickness 0.063
Material 301/302/304 A AMS5901,5516,5513
Drawing REV 7
Quantity

NAS1149C0716B

ID 0.453
OD 0.75
Thickness 0.016
Material 301 SS 1/4 HD AMS5517
Drawing REV 7
Quantity

NAS1149C0716R

ID 0.453
OD 0.75
Thickness 0.016
Material 301 SS 1/4 HD AMS5517
Drawing REV 7
Quantity

NAS1149C0732B

ID 0.453
OD 0.75
Thickness 0.032
Material 301/302/304 A AMS5901,5516,5513
Drawing REV 7
Quantity

NAS1149C0732R

ID 0.453
OD 0.75
Thickness 0.032
Material 301/302/304 A AMS5901,5516,5513
Drawing REV 7
Quantity

NAS1149C0763B

ID 0.453
OD 0.75
Thickness 0.063
Material 301/302/304 A AMS5901,5516,5513
Drawing REV 7
Quantity

NAS1149C0763R

ID 0.453
OD 0.75
Thickness 0.063
Material 301/302/304 A AMS5901,5516,5513
Drawing REV 7
Quantity

NAS1149C0816R

ID 0.515
OD 0.875
Thickness 0.016
Material 301 SS 1/4 HD AMS5517
Drawing REV 7
Quantity

NAS1149C0832B

ID 0.515
OD 0.875
Thickness 0.032
Material 301/302/304 A AMS5901,5516,5513
Drawing REV 7
Quantity

NAS1149C0832R

ID 0.515
OD 0.875
Thickness 0.032
Material 301/302/304 A AMS5901,5516,5513
Drawing REV 7
Quantity

NAS1149C0863B

ID 0.515
OD 0.875
Thickness 0.063
Material 301/302/304 A AMS5901,5516,5513
Drawing REV 7
Quantity

NAS1149C0863R

ID 0.515
OD 0.875
Thickness 0.063
Material 301/302/304 A AMS5901,5516,5513
Drawing REV 7
Quantity

NAS1149C0916B

ID 0.578
OD 1.062
Thickness 0.016
Material 301 SS 1/4 HD AMS5517
Drawing REV 7
Quantity

NAS1149C0916R

ID 0.578
OD 1.062
Thickness 0.016
Material 301 SS 1/4 HD AMS5517
Drawing REV 7
Quantity

NAS1149C0932B

ID 0.578
OD 1.062
Thickness 0.032
Material 301/302/304 A AMS5901,5516,5513
Drawing REV 7
Quantity

NAS1149C0932R

ID 0.578
OD 1.062
Thickness 0.032
Material 301/302/304 A AMS5901,5516,5513
Drawing REV 7
Quantity

NAS1149C0963B

ID 0.578
OD 1.062
Thickness 0.063
Material 301/302/304 A AMS5901,5516,5513
Drawing REV 7
Quantity

NAS1149C0963R

ID 0.578
OD 1.062
Thickness 0.063
Material 301/302/304 A AMS5901,5516,5513
Drawing REV 7
Quantity

NAS1149C1032R

ID 0.64
OD 1.188
Thickness 0.032
Material 301/302/304 A AMS5901,5516,5513
Drawing REV 7
Quantity

NAS1149C1232R

ID 0.765
OD 1.312
Thickness 0.032
Material 301/302/304 A AMS5901,5516,5513
Drawing REV 7
Quantity

NAS1149C1290B

ID 0.765
OD 1.312
Thickness 0.09
Material 301/302/304 A AMS5901,5516,5513
Drawing REV 7
Quantity

NAS1149C1290R

ID 0.765
OD 1.312
Thickness 0.09
Material 301/302/304 A AMS5901,5516,5513
Drawing REV 7
Quantity

NAS1149C1416R

ID 0.89
OD 1.5
Thickness 0.016
Material 301 SS 1/4 HD AMS5517
Drawing REV 7
Quantity

NAS1149C1432R

ID 0.89
OD 1.5
Thickness 0.032
Material 301/302/304 A AMS5901,5516,5513
Drawing REV 7
Quantity

NAS1149C1490B

ID 0.89
OD 1.5
Thickness 0.09
Material 301/302/304 A AMS5901,5516,5513
Drawing REV 7
Quantity

NAS1149C1490R

ID 0.89
OD 1.5
Thickness 0.09
Material 301/302/304 A AMS5901,5516,5513
Drawing REV 7
Quantity

NAS1149C1632B

ID 1.015
OD 1.75
Thickness 0.032
Material 301/302/304 A AMS5901,5516,5513
Drawing REV 7
Quantity

NAS1149C1632R

ID 1.015
OD 1.75
Thickness 0.032
Material 301/302/304 A AMS5901,5516,5513
Drawing REV 7
Quantity

NAS1149C1690B

ID 1.015
OD 1.75
Thickness 0.09
Material 301/302/304 A AMS5901,5516,5513
Drawing REV 7
Quantity

NAS1149C1690R

ID 1.015
OD 1.75
Thickness 0.09
Material 301/302/304 A AMS5901,5516,5513
Drawing REV 7
Quantity

NAS1149C1732B

ID 1.078
OD 1.812
Thickness 0.032
Material 301/302/304 A AMS5901,5516,5513
Drawing REV 7
Quantity

NAS1149C1732R

ID 1.078
OD 1.812
Thickness 0.032
Material 301/302/304 A AMS5901,5516,5513
Drawing REV 7
Quantity

NAS1149C1790R

ID 1.078
OD 1.812
Thickness 0.09
Material 301/302/304 A AMS5901,5516,5513
Drawing REV 7
Quantity

NAS1149C1832R

ID 1.14
OD 1.875
Thickness 0.032
Material 301/302/304 A AMS5901,5516,5513
Drawing REV 7
Quantity

NAS1149C1890R

ID 1.14
OD 1.875
Thickness 0.09
Material 301/302/304 A AMS5901,5516,5513
Drawing REV 7
Quantity

NAS1149C2032R

ID 1.265
OD 2.0
Thickness 0.032
Material 301/302/304 A AMS5901,5516,5513
Drawing REV 7
Quantity

NAS1149C2090R

ID 1.265
OD 2.0
Thickness 0.09
Material 301/302/304 A AMS5901,5516,5513
Drawing REV 7
Quantity

NAS1149C2190R

ID 1.328
OD 2.062
Thickness 0.09
Material 301/302/304 A AMS5901,5516,5513
Drawing REV 7
Quantity

NAS1149C2216R

ID 1.39
OD 2.125
Thickness 0.016
Material 301 SS 1/4 HD AMS5517
Drawing REV 7
Quantity

NAS1149C2432R

ID 1.515
OD 2.25
Thickness 0.032
Material 301/302/304 A AMS5901,5516,5513
Drawing REV 7
Quantity

NAS1149C2490R

ID 1.515
OD 2.25
Thickness 0.09
Material 301/302/304 A AMS5901,5516,5513
Drawing REV 7
Quantity

NAS1149C2690R

ID 1.64
OD 2.375
Thickness 0.09
Material 301/302/304 A AMS5901,5516,5513
Drawing REV 7
Quantity

NAS1149C3690R

ID 2.265
OD 3.0
Thickness 0.09
Material 301/302/304 A AMS5901,5516,5513
Drawing REV 7
Quantity

NAS1149CN016R

ID 0.068
OD 0.188
Thickness 0.016
Material 301 SS 1/4 HD AMS5517
Drawing REV 7
Quantity

As a leading washer manufacturer, we produce military washers according to precise standards and specifications. We are an ISO 9001:2015 certified company and implement, maintain, and adhere to a total Quality Management System (QMS) that is regularly audited to guarantee compliance and excellence. Our commitment to quality ensures we deliver products that meet rigorous industry requirements, including: • NAS: National Aerospace Standards • MS: Military Standards • AN: Aeronautical Standards We can provide material certifications and DFARS compliance. We proudly assure that all of the products we offer, from standard washers to custom washers, are manufactured here in the U.S.A.