Specification O-Rings
Our Government Cage Code is: 10464
Quality Assurance per: MIL-I-45208A
Packaging per MIL-P-4861 available per request
The most widely used specifications are the AN, M, MS and NAS specifications. This reference table is arranged by drawing number.
| Sealing | Recommended Temp. Range°F |
||||||||
| Drawing No. | Specifications | Static | Dynamic | Fluid | Low | High | Elastomer | Compound | Comments |
| AN 123951 thru AN 124050 |
AMS 7270 | x | x | Aircraft fuels | -40 | +302 | Nitrile | 4456-70 | For use in aircraft fuels, both piston (gasoline) and jet (jet fuels) engines. |
| M25988/1 | MIL-R-25988 Class 1, Grade 70 |
x | x | Aircraft fuels and lubricants |
-70 | +392 | Fluorosilicone | 1903-70 | Blue color as required by MIL spec.Not recommended for high pressure dynamic applications. |
| M25988/2 | MIL-R-25988 Class 3, Grade 75 |
x | x | Aircraft fuels and lubricants |
-70 | +437 | Fluorosilicone | 1904-75 | Blue color as required by MIL spec. Higher modulus and higher temperature resistance than 1903-70. |
| M25988/3 | MIL-R-25988 Class 1, Grade 60 |
x | x | Aircraft fuels and lubricants |
-70 | +392 | Fluorosilicone | 1902-60 | Blue color as required by MIL spec. Lower durometer than 1903-70. For low pressure applications. |
| M25988/4 | MIL-R-25988 Class 1, Grade 80 |
x | x | Aircraft fuels and lubricants |
-70 | +392 | Fluorosilicone | 1905-80 | Blue color as required by MIL spec. Higher durometer than 1903-70. |
| M83248/1 | MIL-R-83248 Class 1 |
x | x | Aircraft fuels and lubricants |
-20 | +400 | Fluorocarbon | 9009-75 | Excellent resistance to compression set. |
| M83248/2 | MIL-R-83248 Class 2 |
x | x | Aircraft fuels and lubricants |
-20 | +400 | Fluorocarbon | 9009-90 | Higher durometer than 9009-75. |
| M83461/1A | MIL-P-83461 | x | x | MIL-H-5606 | -65 | +275 | Nitrile | 4367-70 | Better dynamic performance and longer service life at 257°F than 4067-70. |
| AS3578 | AMS 7271 | x | Aircraft fuels | -58 | +257 | Nitrile | 4465-65 | This drawing cover tube fitting sizes only. | |
| AS3578 | x | x | Aircraft fuels | -58 | +257 | Nitrile | 4465-65 | Not recommended for high pressure dynamic applications. | |
| AS3582 | AMS 3304 | x | x | Dry heat and petroleum based lube oils |
-85 | +400 | Silicone | 1235-70 | Not recommended for high pressure dynamic applications. |
| MS9385 | AMS 7267 | x | Dry heat and petroleum based lube oils |
-85 | +500 | Silicone | 1373-70 | This drawing cover tube fitting sizes only. | |
| MS9386 | x | x | -85 | +500 | Silicone | 1373-70 | This drawing covers all sizes except the tube fitting sizes. | ||
| MS9387 | AMS 7278 | x | Aircraft fuels and lubricants |
-20 | +400 | Fluorocarbon | 9009-75 | This drawing cover tube fitting sizes only. | |
| MS28775 | MIL-P-25732 | x | x | MIL-H-5606 | -65 | +275 | Nitrile | 4067-70 | MIL-H-5606 is the petroleum base hydraulic fluid (inactive for new designs. see M 83461/1A) |
| MS28900 | AMS 3209 | x | Ozone | -40 | +212 | Neoprene | 3110-70 | For weather resistant seals. (Non-standard sizes) | |
| MS29512 | MIL-P-5315 | x | Aircraft fuels | -65 | +158 | Nitrile | 0457-60 | This drawing cover tube fitting sizes only. | |
| MS29513 | x | x | Aircraft fuels | -65 | +158 | Nitrile | 0457-60 | This drawing covers all sizes except the tube fitting sizes. | |
| NAS617 | MIL-R-7362, Type 1 |
x | x | Synthetic diester jet engine lubricants (MIL-L-7808) |
-65 | +257 | Nitrile | 4043-70 | This drawing cover tube fitting sizes only. |
| NAS1611 | NAS 1613, REV2 or REV4 |
x | x | Phosphate ester hydraulic fluid (Skydrol) |
-65 | +250 | Ethylene Propylene |
This drawing covers all sizes except tube fitting sizes. Inactive for new design. | |
| NAS1612 | NAS 1613, REV2 or REV4 |
x | -65 | +250 | Ethylene Propylene |
This drawing covers tube fitting sizes only. Inactive for new design. |