Home | MS51412 Washers - Mil-Spec Defense Washers

MS51412 Washers - Mil-Spec Defense Washers

MS51412 washers are military standard components manufactured for fastener assemblies in aerospace, defense, and industrial applications requiring mil-spec compliance. Superior Washer & Gasket Corp produces MS51412 mil-spec washers from DFARS-qualified materials with complete certifications for government and regulated procurement.

As an ISO 9001:2015 certified washer manufacturer, we apply strict quality controls to all military flat washers including MS51412. Domestic manufacturing ensures Buy American compliance and full material traceability. Available in standard and custom quantities with supporting documentation.

  • MS51412 mil-spec washers per military standards
  • DFARS compliance with material certifications
  • ISO 9001:2015 certified QMS
  • Full quality documentation available
  • Made in the U.S.A.

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Showing 1–31 of 31 products

SKU ID OD Thickness Drawing Quantity

MS51412-1

ID 0.156
OD 0.375
Thickness 0.036
Drawing REV C
Quantity

MS51412-10

ID 0.562
OD 1.375
Thickness 0.086
Drawing REV C
Quantity

MS51412-11

ID 0.656
OD 1.312
Thickness 0.074
Drawing REV C
Quantity

MS51412-12

ID 0.688
OD 1.75
Thickness 0.108
Drawing REV C
Quantity

MS51412-13

ID 0.812
OD 1.469
Thickness 0.108
Drawing REV C
Quantity

MS51412-18

ID 0.188
OD 0.438
Thickness 0.036
Drawing REV C
Quantity

MS51412-2

ID 0.219
OD 0.5
Thickness 0.036
Drawing REV C
Quantity

MS51412-21

ID 0.219
OD 0.656
Thickness 0.055
Drawing REV C
Quantity

MS51412-21A

ID 0.219
OD 0.656
Thickness 0.055
Drawing REV C
Quantity

MS51412-22

ID 0.234
OD 0.375
Thickness 0.043
Drawing REV C
Quantity

MS51412-23

ID 0.266
OD 0.812
Thickness 0.075
Drawing REV C
Quantity

MS51412-24

ID 0.266
OD 1.0
Thickness 0.059
Drawing REV C
Quantity

MS51412-25

ID 0.344
OD 1.0
Thickness 0.059
Drawing REV C
Quantity

MS51412-26

ID 0.375
OD 0.625
Thickness 0.09
Drawing REV C
Quantity

MS51412-27

ID 0.406
OD 1.25
Thickness 0.075
Drawing REV C
Quantity

MS51412-28

ID 0.5
OD 0.688
Thickness 0.029
Drawing REV C
Quantity

MS51412-29

ID 0.562
OD 0.734
Thickness 0.057
Drawing REV C
Quantity

MS51412-3

ID 0.25
OD 0.562
Thickness 0.036
Drawing REV C
Quantity

MS51412-30

ID 0.656
OD 1.25
Thickness 0.099
Drawing REV C
Quantity

MS51412-32

ID 0.812
OD 1.25
Thickness 0.028
Drawing REV C
Quantity

MS51412-33

ID 0.938
OD 1.375
Thickness 0.028
Drawing REV C
Quantity

MS51412-36

ID 0.281
OD 0.968
Thickness 0.036
Drawing REV C
Quantity

MS51412-39

ID 0.438
OD 1.0
Thickness 0.064
Drawing REV C
Quantity

MS51412-4

ID 0.281
OD 0.625
Thickness 0.051
Drawing REV C
Quantity

MS51412-43

ID 1.125
OD 2.5
Thickness 0.136
Drawing REV C
Quantity

MS51412-4A

ID 0.281
OD 0.625
Thickness 0.051
Drawing REV C
Quantity

MS51412-5

ID 0.312
OD 0.734
Thickness 0.051
Drawing REV C
Quantity

MS51412-6

ID 0.375
OD 0.875
Thickness 0.064
Drawing REV C
Quantity

MS51412-7

ID 0.438
OD 1.0
Thickness 0.051
Drawing REV C
Quantity

MS51412-8

ID 0.5
OD 1.25
Thickness 0.064
Drawing REV C
Quantity

MS51412-9

ID 0.531
OD 1.062
Thickness 0.074
Drawing REV C
Quantity

MS51412 Military Washers Frequently Asked Questions

What are MS51412 washers?

MS51412 washers are mil-spec flat washers manufactured to Military Standard specification MS51412, for use in military and aerospace fastening applications requiring MS-standard washers for load distribution and fastener protection.

What drawing revision are MS51412 washers manufactured to?

Superior Washer MS51412 washers are manufactured to REV 5 (stamped with part number) of the MS51412 specification.

Are your MS51412 washers made in the USA with DFARS-compliant materials?

Yes. All MS51412 washers are manufactured in the United States under our ISO 9001:2015 certified Quality Management System, audited by DNV. MS51412 washers are made from low-carbon steel (ASTM A108, grades 1008 through 1020), which is exempt from DFARS specialty metal restrictions. Material certifications are available upon request.

MS51412 washers are part of Superior Washer's complete inventory of custom military washers manufactured to MS, AN, and NAS standards for defense and aerospace procurement.