Military-Specification O-Rings | Arizona Sealing Devices, Inc.

Arizona Sealing Devices, Inc. is a certified distributor of high-quality military and standard O-rings that will meet your specifications. In addition, we provide a diverse range of material compounds and durometers for industrial, aviation, and military applications.

O-rings, in particular, are circularly molded elastomers used to create an airtight seal between two machine elements. These simplistic mechanical gaskets provide a low-cost method of preventing fluid or gas leakage.

On the other hand, Military-Specification O-rings, also known as Mil-Spec O-rings, are compounds approved for military use. Mil-Spec O-rings are widely used in defense weapons and equipment, shipboard machinery, and aircraft fuel transfer. They are also designed to withstand harsh environmental conditions such as water, heat, and sunlight.

Arizona Sealing Devices, Inc. works with various materials, each suitable for a specific industrial use.

Mil-Spec O-Rings Specifications

There are several specifications, but the ones listed below are the most commonly used in military, aerospace, automotive, petroleum, and commercial applications.

Abbreviations: Aerospace Material Specification (AMS), Army/Navy (AN), Military (M), Military Standard (MS), National Aerospace Standard (NAS)

Army/Navy (AN)

AN 123951 thru AN 124050
Specification: AMS 7270
Fluid: Aircraft fuels
Recommended Temperature Range (°F): -40 < X < +302
Elastomer: Nitrile
Compound: 4456-70

Military (M)

M25988/1
Specification: MIL-R-25988 Class 1, Grade 70
Fluid: Aircraft fuels and lubricants
Recommended Temperature Range (°F): -70 < X < +392
Elastomer: Fluorosilicone
Compound: 1903-70

M25988/2
Specification: MIL-R-25988 Class 3, Grade 75
Fluid: Aircraft fuels and lubricants
Recommended Temperature Range (°F): -70 < X < +437
Elastomer: Fluorosilicone
Compound: 1904-75

M25988/3
Specification: MIL-R-25988 Class 1, Grade 60
Fluid: Aircraft fuels and lubricants
Recommended Temperature Range (°F): -70 < X < +392
Elastomer: Fluorosilicone
Compound: 1902-60

M25988/4
Specification: MIL-R-25988 Class 1, Grade 80
Fluid: Aircraft fuels and lubricants
Recommended Temperature Range (°F): -70 < X < +392
Elastomer: Fluorosilicone
Compound: 1905-80

M83248/1
Specification: MIL-R-83248 Class 1
Fluid: Aircraft fuels and lubricants
Recommended Temperature Range (°F): -20 < X < +400
Elastomer: Fluorocarbon
Compound: 9009-75

M83248/2
Specification: MIL-R-83248 Class 2
Fluid: Aircraft fuels and lubricants
Recommended Temperature Range (°F): -20 < X < +400
Elastomer: Fluorocarbon
Compound: 9009-90

M83461/1A
Specification: MIL-P-83461
Fluid: MIL-H-5606
Recommended Temperature Range (°F): -65 < X < +275
Elastomer: Nitrile
Compound: 4367-70

Military Standard (MS)

MS9385
Specification: AMS 7267
Fluid: Dry heat and petroleum-based lube oils
Recommended Temperature Range (°F): -85 < X < +500
Elastomer: Silicone
Compound: 1373-70

MS9386
Specification: X
Fluid: X
Recommended Temperature Range (°F): -85 < X < +500
Elastomer: Silicone
Compound: 1373-70

MS9387
Specification: AMS 7278
Fluid: Aircraft fuels and lubricants
Recommended Temperature Range (°F): -20 < X < +400
Elastomer: Fluorocarbon
Compound: 9009-75

MS28775
Specification: MIL-P-25732
Fluid: MIL-H-5606
Recommended Temperature Range (°F): -65 < X < +275
Elastomer: Nitrile
Compound: 4067-70

MS28900
Specification: AMS-3209
Fluid: Ozone
Recommended Temperature Range (°F): -40 < X < +212
Elastomer: Neoprene
Compound: 3110-70

MS29512
Specification: MIL-P-5315
Fluid: Aircraft fuels
Recommended Temperature Range (°F): -65 < X < +158
Elastomer: Nitrile
Compound: 0457-60

MS29513
Specification: X
Fluid: Aircraft fuels
Recommended Temperature Range (°F): -65 < X < +158
Elastomer: Nitrile
Compound: 0457-60

National Aerospace Standard (NAS)

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
Compound: 4043-70

NAS1611
Specification: NAS1613, REV2 or REV4
Fluid: Phosphate ester hydraulic fluid (Skydrol)
Recommended Temperature Range (°F): -65 < X < +250
Elastomer: Ethylene Propylene
Compound: X

NAS1612
Specification: NAS1613, REV2 or REV4
Fluid: X
Recommended Temperature Range (°F): -65 < X < +250
Elastomer: Ethylene Propylene
Compound: X

High-Quality Mil-Spec O-Rings By Arizona Sealing Devices, Inc.

As one of the best distributors and service centers of high-quality military and standard O-rings, Arizona Sealing Devices Inc. takes pride in offering O-rings in several designs to suit a wide range of customer needs. Design options include various shapes, sizes, and industry compliances.

Our team is wholly committed to ensuring customer satisfaction by delivering high-quality products and exceptional services on time and within budget, regardless of the size or complexity of the request.