SIL Parker S0469-40 O-Ring, Size: -018
Material: SIL Parker S0469-40 O-Ring
Size: AS568 -018 O-Ring
Part Number: S0469-40-OR-018
Parker Seal® (Parker)
S0469-40
Silicone (VMQ)
40
Shore A
A-A-59588 (2A-40), A-A-59588 (2B-40), AMS 3301
Color: Red
Detailed Description
S0469-40-OR-018 is a Red, 40 Shore A, Silicone (VMQ) O-Ring made from Parker Seal® (Parker). Parker Seal® (Parker) S0469-40 is manufactured with the following features & specifications: A-A-59588 (2A-40), A-A-59588 (2B-40), AMS 3301. S0469-40-OR-018 is AS568 size -018 O-Ring also referred to as 1.78mm (Cross Sectional Diameter (CS)) x 18.77mm (Inside Diameter (ID)).
Material: SIL Parker S0469-40 O-Ring
Size: AS568 -018, 1.78mm CS X 18.77mm ID (0.070" CS X 0.739" ID)
| Technical Specification | Value |
|---|---|
| Compound Number | S0469-40 |
| Brand | Parker Seal® (Parker) |
| Material | Silicone (VMQ) |
| Color | Red |
| Durometer | 40 Shore A |
| High Temperature | 204 °C / 399 °F |
| Low Temperature | -59 °C / -74 °F |
| Geometry Specifications | |
| Cross Sectional Geometry | O-Ring |
| Size Standard | AS568 |
| Size | -018 |
| Cross Section (CS) | 1.78 mm / 0.070 in |
| Inside Diameter (ID) | 18.77 mm / 0.739 in |
| Other Specifications | |
A-A-59588 (2A-40), A-A-59588 (2B-40), AMS 3301 | |
Parker S0469-40 is a 40 Shore A rust-colored silicone (VMQ) compound engineered for O-rings and gaskets requiring excellent low-temperature flexibility and stable performance in regulated environments. With a service temperature range of -75°F to 400°F, this material performs reliably in dry heat, moderate water exposure, and applications demanding strong resistance to ozone, aging, and weathering. S0469-40 meets AMS 3301, USP Class VI, and A-A-59588 Class 2a and 2b Grade 40 requirements, making it suitable for aerospace, medical, and industrial sealing applications where compliance and material consistency are critical. It is compatible with fire-resistant hydraulic fluids (HFD-R and HFD-S) and limited petroleum oil exposure, but is not recommended for ketones, acids, silicone oils, or automotive and aircraft brake fluids. Canyon Components offers equivalent silicone materials that match or exceed the performance of Parker S0469-40 for compliant low-temperature O-ring and gasket applications.
Common relevant keywords:
silicone O-rings, VMQ silicone gaskets, 40 Shore A silicone rubber, low temperature silicone seals, AMS 3301 silicone compound, USP Class VI silicone elastomer, A-A-59588 Grade 40 silicone, aerospace silicone O-rings, fire resistant hydraulic fluid seals, Parker S0469-40 equivalent, S0469-40, S469-40, S0469 40, VMQ 40A silicone, Datasheet, TDS, Test Report, MTR, MSDS, SDS