Image shown is representative and may differ from the actual product in size, proportions, and color shade
3.500 in
(88.90 mm)
7.500 in
(190.50 mm)
4
0.750 in
(19.05 mm)
6.000 in
(152.40 mm)
1/2"
HNBR Parker N1173-70 Full Face Gasket, Size: 150#-3"-FF-1/2"
Material: HNBR Parker N1173-70 Full Face Gasket
Size: 150#-3"-FF-1/2" Full Face Gasket
Part Number: N1173-70-150#-3"-FF-1/2"
Color: Black
Detailed Description
N1173-70-150#-3"-FF-1/2" is a Black, 70 Shore A, HNBR (Hydrogenated Nitrile) Full Face Gasket made from Parker Seal® (Parker). It is a 70 durometer HNBR (Hydrogenated Nitrile). [Parker Seal® (Parker) N1173-70 is manufactured with the following features & specifications: General Purpose Material. N1173-70-150#-3"-FF-1/2" is a size 3, 150#-FF ASME Full Face Gasket. Material: 70 Durometer HNBR Parker N1173-70 Full Face Gasket Size: 150#-3"-FF-1/2", 3 Pipe Size X 88.9mm ID X 190.5mm OD X 4 Bolt Qty X 19.050mm Bolt Dia. X 152.400mm Bolt Circle X 1/2" Thickness
| Technical Specification | Value |
|---|---|
| Compound Number | N1173-70 |
| Brand | Parker Seal® (Parker) |
| Material | HNBR (Hydrogenated Nitrile) |
| Color | Black |
| Durometer | 70 Shore A Hardness |
| High Temperature | 149 °C / 300 °F |
| Low Temperature | -32 °C / -26 °F |
| Geometry Specifications | |
| Type | Full Face Gasket |
| Size | 150#-3"-FF-1/2" |
| Pipe Size | 3 |
| ID | 88.90 mm / 3.500 in |
| OD | 190.50 mm / 7.500 in |
| Bolt Qty | 4 |
| Bolt Dia. | 19.05 mm / 0.750 in |
| Bolt Circle | 152.40 mm / 6.000 in |
| Thickness | 1/2" |
Parker’s N1173-70 is a 70 Shore A black hydrogenated nitrile rubber (HNBR) compound designed as a versatile, general-purpose sealing material for industrial, automotive, and fluid power applications. Hydrogenated nitrile chemistry provides improved thermal stability, chemical resistance, and aging performance compared to standard NBR, supporting reliable operation across a wide service temperature range of approximately -25°F to 300°F, with short-term capability up to 325°F. This compound is compatible with petroleum-based hydraulic oils, motor oils, transmission fluids, greases, R134a refrigerant, water and glycol mixtures, steam, and HFA, HFB, and HFC hydraulic fluids. Its resistance to ozone, weathering, and environmental exposure contributes to long service life in both indoor and outdoor sealing environments.
N1173-70 is commonly used for O-rings and gaskets in pumps, valves, hydraulic systems, compressors, and general machinery where balanced oil resistance and temperature capability are required. It is not recommended for polar solvents such as ketones and esters, strong acids, chlorinated hydrocarbons, or automotive and aircraft brake fluids. This material is often selected when standard nitrile compounds are insufficient but ultra-high-performance elastomers are unnecessary. Canyon Components offers equivalent HNBR materials designed to match the temperature range, fluid compatibility, and mechanical performance of Parker N1173-70 for general-purpose sealing applications.
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