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

Showing 1101–1150 of 1,345 products

SKU ID OD Thickness Material Drawing Quantity

NAS1149F0963P

ID 0.578
OD 1.062
Thickness 0.063
Material 1020 STEEL AMS5046
Drawing REV 7
Quantity

NAS1149F1016P

ID 0.64
OD 1.188
Thickness 0.016
Material 1020 STEEL AMS5046
Drawing REV 7
Quantity

NAS1149F1032P

ID 0.64
OD 1.188
Thickness 0.032
Material 1020 STEEL AMS5046
Drawing REV 7
Quantity

NAS1149F1063P

ID 0.64
OD 1.188
Thickness 0.063
Material 1020 STEEL AMS5046
Drawing REV 7
Quantity

NAS1149F1165P

ID 0.234
OD 0.625
Thickness 0.065
Material 1020 STEEL AMS5046
Drawing REV 7
Quantity

NAS1149F1216P

ID 0.765
OD 1.312
Thickness 0.016
Material 1020 STEEL AMS5046
Drawing REV 7
Quantity

NAS1149F1232P

ID 0.765
OD 1.312
Thickness 0.032
Material 1020 STEEL AMS5046
Drawing REV 7
Quantity

NAS1149F1290P

ID 0.765
OD 1.312
Thickness 0.09
Material 1020 STEEL AMS5046
Drawing REV 7
Quantity

NAS1149F1416P

ID 0.89
OD 1.5
Thickness 0.016
Material 1020 STEEL AMS5046
Drawing REV 7
Quantity

NAS1149F1432P

ID 0.89
OD 1.5
Thickness 0.032
Material 1020 STEEL AMS5046
Drawing REV 7
Quantity

NAS1149F1490P

ID 0.89
OD 1.5
Thickness 0.09
Material 1020 STEEL AMS5046
Drawing REV 7
Quantity

NAS1149F1616P

ID 1.015
OD 1.75
Thickness 0.016
Material 1020 STEEL AMS5046
Drawing REV 7
Quantity

NAS1149F1632P

ID 1.015
OD 1.75
Thickness 0.032
Material 1020 STEEL AMS5046
Drawing REV 7
Quantity

NAS1149F1690P

ID 1.015
OD 1.75
Thickness 0.09
Material 1020 STEEL AMS5046
Drawing REV 7
Quantity

NAS1149F1716P

ID 1.078
OD 1.812
Thickness 0.016
Material 1020 STEEL AMS5046
Drawing REV 7
Quantity

NAS1149F1732P

ID 1.078
OD 1.812
Thickness 0.032
Material 1020 STEEL AMS5046
Drawing REV 7
Quantity

NAS1149F1790P

ID 1.078
OD 1.812
Thickness 0.09
Material 1020 STEEL AMS5046
Drawing REV 7
Quantity

NAS1149F1832P

ID 1.14
OD 1.875
Thickness 0.032
Material 1020 STEEL AMS5046
Drawing REV 7
Quantity

NAS1149F1890P

ID 1.14
OD 1.875
Thickness 0.09
Material 1020 STEEL AMS5046
Drawing REV 7
Quantity

NAS1149F1932P

ID 1.14
OD 1.875
Thickness 0.032
Material 1020 STEEL AMS5046
Drawing REV 7
Quantity

NAS1149F2016P

ID 1.265
OD 2.0
Thickness 0.016
Material 1020 STEEL AMS5046
Drawing REV 7
Quantity

NAS1149F2032P

ID 1.265
OD 2.0
Thickness 0.032
Material 1020 STEEL AMS5046
Drawing REV 7
Quantity

NAS1149F2090P

ID 1.265
OD 2.0
Thickness 0.09
Material 1020 STEEL AMS5046
Drawing REV 7
Quantity

NAS1149F2116P

ID 1.328
OD 2.062
Thickness 0.016
Material 1020 STEEL AMS5046
Drawing REV 7
Quantity

NAS1149F2132P

ID 1.328
OD 2.062
Thickness 0.032
Material 1020 STEEL AMS5046
Drawing REV 7
Quantity

NAS1149F2190P

ID 1.328
OD 2.062
Thickness 0.09
Material 1020 STEEL AMS5046
Drawing REV 7
Quantity

NAS1149F2216P

ID 1.39
OD 2.125
Thickness 0.016
Material 1020 STEEL AMS5046
Drawing REV 7
Quantity

NAS1149F2232P

ID 1.39
OD 2.125
Thickness 0.032
Material 1020 STEEL AMS5046
Drawing REV 7
Quantity

NAS1149F2290P

ID 1.39
OD 2.125
Thickness 0.09
Material 1020 STEEL AMS5046
Drawing REV 7
Quantity

NAS1149F2416P

ID 1.515
OD 2.25
Thickness 0.016
Material 1020 STEEL AMS5046
Drawing REV 7
Quantity

NAS1149F2432P

ID 1.515
OD 2.25
Thickness 0.032
Material 1020 STEEL AMS5046
Drawing REV 7
Quantity

NAS1149F2490P

ID 1.515
OD 2.25
Thickness 0.09
Material 1020 STEEL AMS5046
Drawing REV 7
Quantity

NAS1149F2616P

ID 1.64
OD 2.375
Thickness 0.016
Material 1020 STEEL AMS5046
Drawing REV 7
Quantity

NAS1149F2632P

ID 1.64
OD 2.375
Thickness 0.032
Material 1020 STEEL AMS5046
Drawing REV 7
Quantity

NAS1149F2690P

ID 1.64
OD 2.375
Thickness 0.09
Material 1020 STEEL AMS5046
Drawing REV 7
Quantity

NAS1149F3016P

ID 1.89
OD 2.625
Thickness 0.016
Material 1020 STEEL AMS5046
Drawing REV 7
Quantity

NAS1149F3032P

ID 1.89
OD 2.625
Thickness 0.032
Material 1020 STEEL AMS5046
Drawing REV 7
Quantity

NAS1149F3090P

ID 1.89
OD 2.625
Thickness 0.09
Material 1020 STEEL AMS5046
Drawing REV 7
Quantity

NAS1149F3616P

ID 2.265
OD 3.0
Thickness 0.016
Material 1020 STEEL AMS5046
Drawing REV 7
Quantity

NAS1149F3632P

ID 2.265
OD 3.0
Thickness 0.032
Material 1020 STEEL AMS5046
Drawing REV 7
Quantity

NAS1149F3690P

ID 2.265
OD 3.0
Thickness 0.09
Material 1020 STEEL AMS5046
Drawing REV 7
Quantity

NAS1149F4032P

ID 2.515
OD 3.25
Thickness 0.032
Material 1020 STEEL AMS5046
Drawing REV 7
Quantity

NAS1149F4090P

ID 2.515
OD 3.25
Thickness 0.09
Material 1020 STEEL AMS5046
Drawing REV 7
Quantity

NAS1149FN016P

ID 0.068
OD 0.188
Thickness 0.016
Material 1020 STEEL AMS5046
Drawing REV 7
Quantity

NAS1149FN032P

ID 0.068
OD 0.188
Thickness 0.032
Material 1020 STEEL AMS5046
Drawing REV 7
Quantity

NAS1149FN216P

ID 0.099
OD 0.25
Thickness 0.016
Material 1020 STEEL AMS5046
Drawing REV 7
Quantity

NAS1149FN232P

ID 0.099
OD 0.25
Thickness 0.032
Material 1020 STEEL AMS5046
Drawing REV 7
Quantity

NAS1149FN316P

ID 0.105
OD 0.25
Thickness 0.016
Material 1020 STEEL AMS5046
Drawing REV 7
Quantity

NAS1149FN332P

ID 0.105
OD 0.25
Thickness 0.032
Material 1020 STEEL AMS5046
Drawing REV 7
Quantity

NAS1149FN416B

ID 0.125
OD 0.312
Thickness 0.016
Material 1020 STEEL AMS5046
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.


Military Washers & Mil-spec Washers FAQ

Are military washers and mil-spec washers the same thing?

Yes. "Military washer," "mil-spec washer," "milspec washer," and "military flat washer" all refer to washers manufactured to meet documented military or aerospace procurement standards, such as AN (Aeronautical Standard), MS (Military Standard), or NAS (National Aerospace Standard). The terms are used interchangeably in defense and aerospace procurement. What matters is that the part number traces back to a published specification defining exact dimensions, material, and finish requirements.

What standards do your military washers adhere to?

Superior Washer manufactures to three primary military and aerospace standard families: AN (Aeronautical Standards), MS (Military Standards), and NAS (National Aerospace Standards). Within those families we produce to specific drawing numbers including AN901, AN960, AN961, AN970, MS14151, MS15795, MS16212, MS20002, MS21206, MS21299, MS27183, MS51412, MS51496, MS51859, MS91124, MS9321, MS9549, NAS1149, NAS1515, NAS1587, and NAS620.

What is ISO 9001:2015 and why does it matter for military washers?

ISO 9001:2015 is the internationally recognized standard for Quality Management Systems (QMS). It requires a manufacturer to document, implement, and continuously improve processes that ensure products consistently meet customer and regulatory requirements. For military and aerospace procurement, ISO 9001:2015 certification signals that our manufacturing and inspection processes are regularly audited by an independent third party, in our case, DNV, confirming compliance. All Superior Washer military products are manufactured under this certified QMS.

Are you DFARS compliant?

Yes. We provide DFARS compliance documentation for our military washers. However, DFARS specialty metal restrictions do not apply to all materials. Many of our most common washer materials including 1008/1010 and 1020 low carbon steel, brass alloy 260, copper alloy 110, aluminum, and nylon are exempt from DFARS specialty metal requirements and are commercially available without restriction. Materials that do fall under DFARS specialty metal rules (such as stainless steel, titanium, and nickel alloys) are sourced from the United States or qualifying countries. Material certifications and DFARS compliance documentation are available upon request.

Are your military washers made in the USA?

Yes. All military washers we offer are manufactured in the United States at our facilities in Hauppauge, NY and Rock Hill, SC. Our CAGE codes are 1L160 (NY) and 4WUG7 (SC).

Can you provide material certifications?

Yes. Full material certifications are available for all military washers. These certifications provide traceability from raw material to finished part, supporting government and prime contractor procurement requirements.

Do you offer custom or non-standard military washers?

Yes. While our catalog covers the most common mil-spec part numbers in stock, we also produce custom washers to special dimensions or materials. Contact us for a quote on non-catalog configurations.

How do I request a quote for military washers?

Use the Quick Quote form on our website or call our NY office at (631) 273-8282 or our SC office at (803) 366-3250. Include the part number, quantity, and any certification requirements and we will respond promptly.