Mil-Spec O-Rings & Seals for Military and Aerospace Applications

Military specification O-rings

Arizona Sealing Devices is a certified distributor of high-quality military and standard O-rings and specialty sealing components for the defense and aerospace sectors. In addition, we provide a diverse range of material compounds and durometers for industrial, aviation, and military applications.

We work with various materials, each suitable for a specific military equipment, machinery, fuel transfer, and many other applications. Learn more about advanced elastomeric materials, exact military standards, and certified aerospace distribution practices.

Military (M) Series Mil-Spec O-Rings

We supply exact military specification o-rings to meet precise M-series engineering blueprints.

M25988/1

  • Specification: MIL-R-25988 Class 1, Grade 70
  • Recommended Temperature Range (°F): -70 < X < +392
  • Elastomer: Fluorosilicone

M25988/2

  • Specification: MIL-R-25988 Class 3, Grade 75
  • Recommended Temperature Range (°F): -70 < X < +437
  • Elastomer: Fluorosilicone

M25988/3

  • Specification: MIL-R-25988 Class 1, Grade 60
  • Recommended Temperature Range (°F): -70 < X < +392
  • Elastomer: Fluorosilicone

M25988/4

  • Specification: MIL-R-25988 Class 1, Grade 80
  • Recommended Temperature Range (°F): -70 < X < +392
  • Elastomer: Fluorosilicone

M83248/1

  • Specification: MIL-R-83248 Class 1 Grade 75
  • Recommended Temperature Range (°F): -20 < X < +400
  • Elastomer: Fluorocarbon (Viton)

M83248/2

  • Specification: MIL-R-83248 Class 2 Grade 90
  • Recommended Temperature Range (°F): -20 < X < +400
  • Elastomer: Fluorocarbon (Viton)

M83461/1

  • Specification: MIL-P-83461 Grade 70
  • Recommended Temperature Range (°F): -65 < X < +275
  • Elastomer: Nitrile

Military Standard (MS) Mil-Spec O-Rings

We stock specific mil-spec o-rings formatted for exact MS designations.

MS9385

  • Specification: AMS 7267 Grade 70
  • Recommended Temperature Range (°F): -85 < X < +500
  • Elastomer: Silicone

MS9387

  • Specification: AMS 7278
  • Recommended Temperature Range (°F): -20 < X < +400
  • Elastomer: Fluorocarbon 75 durometer

MS28775

  • Specification: MIL-P-25732
  • Recommended Temperature Range (°F): -65 < X < +275
  • Elastomer: Nitrile 70 durometer

MS28900

  • Specification: AMS-3209
  • Recommended Temperature Range (°F): -40 < X < +212
  • Elastomer: Neoprene 70 durometer

MS29512

  • Specification: MIL-P-5315
  • Recommended Temperature Range (°F): -65 < X < +158
  • Elastomer: Nitrile 60 durometer

MS29513

  • Specification: MIL-P-5315
  • Recommended Temperature Range (°F): -65 < X < +158
  • Elastomer: Nitrile 60 durometer

MS29561

  • Specification: MIL-R-7362, Type 1
  • Recommended Temperature Range -65°F to +257°F
  • Elastomer: Nitrile 70 durometer

MS28774

  • Specification: SAE-AS8791
  • Recommended Temperature Range: -65F to +500F
  • Elastomer: PTFE (Teflon)

MS28778

  • Specification: MIL-P-5510
  • Recommended Temperature Range: -65°F to 212°F
  • Elastomer: Nitrile 90 durometer

National Aerospace Standard (NAS) and AS Series

Aviation hydraulics and fluid transfer lines depend on resilient O-rings and seals to stop material extrusion under heavy physical loads.

NAS617

  • Specification: MIL-R-7362, Type 1
  • Fluid: Synthetic diester jet engine lubricants (MIL-L-7808)
  • Recommended Temperature Range (°F): -65 < X < +257
  • Elastomer: Nitrile

NAS1611

  • Specification: NAS1613
  • Recommended Temperature Range (°F): -65 < X < +250
  • Elastomer: Ethylene Propylene 80 durometer

NAS1612

  • Specification: NAS1613
  • Recommended Temperature Range (°F): -65 < X < +250
  • Elastomer: Ethylene Propylene 80 durometer

AS3582

  • Specification: AMS3304 Grade 70
  • Recommended Temperature Range -85°F to +400°F
  • Elastomer: Silicone

Certified Quality Standards

To comply with defense procurement mandates, we provide documentation and complete lot-level traceability. Our facility is certified by a third party to follow the AS9120B standard for specialized aerospace distribution. We maintain full DFARS and NIST 800-171 compliance to protect sensitive engineering data and fulfill exact military contract stipulations.

Contact Arizona Sealing Devices Today for Defense-Grade Sealing Expertise

Arizona Sealing Devices supports engineering and procurement teams seeking a proven defense and aerospace O-rings supplier and custom gaskets supplier experienced in advanced military and aerospace seals. Our extensive product catalog meets precise AMS, NAS, and MIL-Spec standards, all of which are the result of our commitment to following strict quality controls and validation processes.

To learn more about our defense and aerospace seal solutions, request a quote and speak directly to a member of our team today.