Image shown is representative and may differ from the actual product in size, proportions, and color shade
2.380 in
(60.45 mm)
4.120 in
(104.65 mm)
1/16"
BUTYL Parker B0318-70 Ring Gasket, Size: 150#-2"-RN-1/16"
Material: BUTYL Parker B0318-70 Ring Gasket
Size: 150#-2"-RN-1/16" Ring Gasket
Part Number: B0318-70-150#-2"-RN-1/16"
Color: Black
Detailed Description
B0318-70-150#-2"-RN-1/16" is a Black, 70 Shore A, Butyl (Isobutylene, IIR) Ring Gasket made from Parker Seal® (Parker). It is a 70 durometer Butyl (Isobutylene, IIR). [Parker Seal® (Parker) B0318-70 is manufactured with the following features & specifications: General Purpose Material. B0318-70-150#-2"-RN-1/16" is size 150#-2"-RN-1/16" Ring Gasket also referred to as 2 (Pipe Size) x 60.45mm (ID) x 104.65mm (OD) x 1/16" (Thickness). B0318-70-150#-2"-RN-1/16" is a size 2, 150#-RN ASME Ring Gasket. Material: 70 Durometer BUTYL Parker B0318-70 Ring Gasket Size: 150#-2"-RN-1/16", 2 Pipe Size X 60.45mm ID X 104.65mm OD X 1/16" Thickness
| Technical Specification | Value |
|---|---|
| Compound Number | B0318-70 |
| Brand | Parker Seal® (Parker) |
| Material | Butyl (Isobutylene, IIR) |
| Color | Black |
| Durometer | 70 Shore A Hardness |
| High Temperature | 121 °C / 250 °F |
| Low Temperature | -59 °C / -74 °F |
| Geometry Specifications | |
| Type | Ring Gasket |
| Size | 150#-2"-RN-1/16" |
| Pipe Size | 2 |
| ID | 60.45 mm / 2.380 in |
| OD | 104.65 mm / 4.120 in |
| Thickness | 1/16" |
Parker’s B0318-70 is a 70 Shore A black Butyl (IIR) compound designed for sealing applications that require excellent resistance to polar fluids, steam, and environmental exposure. With a service temperature range of -75°F to 250°F, it maintains flexibility at very low temperatures while performing reliably in hot water and steam environments up to 250°F. This compound is well suited for use with salt solutions, glycol-based brake fluids (DOT 3 and DOT 4), poly-glycol hydraulic fluids (HFC), phosphate-ester fluids (HFD-R), and a wide range of organic acids and polar solvents such as alcohols, ketones, and esters. Its inherent resistance to ozone, aging, and weathering supports long service life in both indoor and outdoor sealing applications.
B0318-70 meets ASTM D2000 M4AA708 requirements and carries AMS 3238 approval, making it appropriate for aerospace, industrial, and fluid-handling systems where permeability control and environmental resistance are critical. It is not recommended for use with mineral oils, greases, fuels, or chlorinated hydrocarbons. Canyon Components offers equivalent Butyl (IIR) materials that match or exceed the performance of Parker B0318-70 for low-temperature, steam, and brake fluid sealing applications.
Common relevant keywords:
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