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 1251–1300 of 1,345 products

SKU ID OD Thickness Drawing Quantity

NAS1587-16

ID 1.01
OD 1.625
Thickness 0.062
Drawing REV 5 STAMPED W/PN
Quantity

NAS1587-18

ID 1.135
OD 1.875
Thickness 0.062
Drawing REV 5 STAMPED W/PN
Quantity

NAS1587-20

ID 1.26
OD 2.125
Thickness 0.062
Drawing REV 5 STAMPED W/PN
Quantity

NAS1587-3

ID 0.192
OD 0.469
Thickness 0.032
Drawing REV 5 STAMPED W/PN
Quantity

NAS1587-3L

ID 0.192
OD 0.469
Thickness 0.016
Drawing REV 5 STAMPED W/PN
Quantity

NAS1587-4

ID 0.252
OD 0.531
Thickness 0.062
Drawing REV 5 STAMPED W/PN
Quantity

NAS1587-4C

ID 0.0
OD 0.0
Thickness 0.0
Drawing REV 5 STAMPED W/PN
Quantity

NAS1587-4L

ID 0.252
OD 0.531
Thickness 0.032
Drawing REV 5 STAMPED W/PN
Quantity

NAS1587-5

ID 0.315
OD 0.593
Thickness 0.062
Drawing REV 5 STAMPED W/PN
Quantity

NAS1587-5L

ID 0.315
OD 0.593
Thickness 0.032
Drawing REV 5 STAMPED W/PN
Quantity

NAS1587-6

ID 0.378
OD 0.687
Thickness 0.062
Drawing REV 5 STAMPED W/PN
Quantity

NAS1587-6L

ID 0.378
OD 0.687
Thickness 0.031
Drawing REV 5 STAMPED W/PN
Quantity

NAS1587-7

ID 0.441
OD 0.781
Thickness 0.062
Drawing REV 5 STAMPED W/PN
Quantity

NAS1587-8

ID 0.504
OD 0.875
Thickness 0.062
Drawing REV 5 STAMPED W/PN
Quantity

NAS1587-8L

ID 0.504
OD 0.875
Thickness 0.031
Drawing REV 5 STAMPED W/PN
Quantity

NAS1587-9

ID 0.568
OD 0.968
Thickness 0.062
Drawing REV 5 STAMPED W/PN
Quantity

NAS1587-9C

ID 0.568
OD 0.968
Thickness 0.078
Drawing REV 5 STAMPED W/PN
Quantity

NAS1587-9L

ID 0.568
OD 0.968
Thickness 0.032
Drawing REV 5 STAMPED W/PN
Quantity

NAS620-0

ID 0.063
OD 0.099
Thickness 0.016
Drawing REV 8
Quantity

NAS620-10

ID 0.195
OD 0.354
Thickness 0.063
Drawing REV 8
Quantity

NAS620-10L

ID 0.195
OD 0.354
Thickness 0.032
Drawing REV 8
Quantity

NAS620-2

ID 0.089
OD 0.149
Thickness 0.016
Drawing REV 8
Quantity

NAS620-3

ID 0.102
OD 0.18
Thickness 0.032
Drawing REV 8
Quantity

NAS620-3L

ID 0.102
OD 0.18
Thickness 0.016
Drawing REV 8
Quantity

NAS620-4

ID 0.115
OD 0.209
Thickness 0.032
Drawing REV 8
Quantity

NAS620-416

ID 0.255
OD 0.468
Thickness 0.063
Drawing REV 8
Quantity

NAS620-416L

ID 0.255
OD 0.468
Thickness 0.032
Drawing REV 8
Quantity

NAS620-4L

ID 0.115
OD 0.209
Thickness 0.016
Drawing REV 8
Quantity

NAS620-5

ID 0.128
OD 0.238
Thickness 0.032
Drawing REV 8
Quantity

NAS620-5L

ID 0.128
OD 0.238
Thickness 0.016
Drawing REV 8
Quantity

NAS620-6

ID 0.143
OD 0.267
Thickness 0.032
Drawing REV 8
Quantity

NAS620-6L

ID 0.143
OD 0.267
Thickness 0.016
Drawing REV 8
Quantity

NAS620-8

ID 0.169
OD 0.304
Thickness 0.032
Drawing REV 8
Quantity

NAS620-8L

ID 0.169
OD 0.304
Thickness 0.016
Drawing REV 8
Quantity

NAS620A0

ID 0.063
OD 0.099
Thickness 0.016
Drawing REV 8
Quantity

NAS620A10

ID 0.195
OD 0.354
Thickness 0.063
Drawing REV 8
Quantity

NAS620A10L

ID 0.195
OD 0.354
Thickness 0.032
Drawing REV 8
Quantity

NAS620A2

ID 0.089
OD 0.149
Thickness 0.016
Drawing REV 8
Quantity

NAS620A3

ID 0.102
OD 0.18
Thickness 0.032
Drawing REV 8
Quantity

NAS620A3L

ID 0.102
OD 0.18
Thickness 0.016
Drawing REV 8
Quantity

NAS620A4

ID 0.115
OD 0.209
Thickness 0.032
Drawing REV 8
Quantity

NAS620A416

ID 0.255
OD 0.468
Thickness 0.063
Drawing REV 8
Quantity

NAS620A416L

ID 0.255
OD 0.468
Thickness 0.032
Drawing REV 8
Quantity

NAS620A4L

ID 0.115
OD 0.209
Thickness 0.016
Drawing REV 8
Quantity

NAS620A5

ID 0.128
OD 0.238
Thickness 0.032
Drawing REV 8
Quantity

NAS620A5L

ID 0.128
OD 0.238
Thickness 0.016
Drawing REV 8
Quantity

NAS620A6

ID 0.143
OD 0.267
Thickness 0.032
Drawing REV 8
Quantity

NAS620A6L

ID 0.143
OD 0.267
Thickness 0.016
Drawing REV 8
Quantity

NAS620A8

ID 0.169
OD 0.304
Thickness 0.032
Drawing REV 8
Quantity

NAS620A8L

ID 0.169
OD 0.304
Thickness 0.016
Drawing REV 8
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.