The Style 1850 Bronze Filled PTFE Piston Seal from Hercules Sealing Products is suitable for use in a variety of hydraulic applications. This piston seal has a 6.00 inch bore diameter and a 5.24 inch groove diameter.
This seal is constructed from bronze filled PTFE, with a rubber energizer. It is designed for piston diameters with a dimension "F" of 5.999 inches, and is interchangeable with the PS1800 style piston seal. It is suitable for use in systems with pressures ranging from 0 to 5000 PSI, and temperatures from -40°F to +220°F.
SKU: PS1850-96
Supplier Part Number (MPN): PS1850-96
Alternate Part Numbers: C1KM94
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Specifications
Bore
6
Bore Tolerance (in)
+0.002/-0
Cross Section Tolerance (in)
±0.005
Brand
Hercules Sealing Products
Brand
Hercules Sealing Products
Pack Size
1.00
UOM
EA
Groove Dia. E
5.24
Groove Width Tolerance (in)
±0.002
Piston Dia. F
6.00
Piston Dia. Tolerance (in)
+0/-0.007
Seal Cross Section C
0.14
Seal Height B
0.36
Seal Height Tolerance (in)
+0.005 / -0
Supplier Part Number
PS1850-96
Alternate Part Numbers
Alternate Part NumberC1KM94
Product Weight
0.22 lbs
Similar Products
Model Number
Bore
Seal Height B
Seal Cross Section C
Groove Width D
Groove Dia. E
Piston Dia. F
Bore Tolerance (in)
Piston Dia. Tolerance (in)
Cross Section Tolerance (in)
Groove Width Tolerance (in)
Seal Height Tolerance (in)
Price
Action
PS1850-48Bronze Filled PTFE Piston Seal
3
0.269
0.087
2.44
2.999
+0.002/-0
+0/-0.006
+0.006 / -0
±0.002
+0.005 / -0
PS1850-96Bronze Filled PTFE Piston Seal
6
0.362
0.142
5.238
5.999
+0.002/-0
+0/-0.007
±0.005
±0.002
+0.005 / -0
Product Questions & Answers (1)
Question by: Denise P on Oct 21, 2025, 2:22 PM
got a 6 inch bore cylinder, is this the right piston seal or am i gonna be fighting it?
Answer by: Customer Support on Oct 23, 2025, 6:05 AM
The key numbers are a 6.00 inch bore, a piston diameter “F” of 5.999 inches, and a groove diameter (E) of 5.238 inches. If your piston and groove match those dimensions and tolerances, this Style 1850 seal is the correct size for that setup.