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Style 1800 Glass-Filled PTFE Piston Seal, 1.25 Inch Bore Diameter, 0.94 Inch Groove Diameter, Inch Groove Width

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Bore
1.25
Bore Tolerance (in)
±0.002
Cross Section Tolerance (in)
+0.006 / -0
Brand
Hercules Sealing Products
Brand
Hercules Sealing Products
Pack Size
1.00
UOM
EA
Groove Dia. E
0.94
Groove Width Tolerance (in)
±0.002
Piston Dia. F
1.25
Piston Dia. Tolerance (in)
+0/-0.005
Seal Cross Section C
0.07
Seal Height B
0.12
Seal Height Tolerance (in)
+0.005 / -0
Supplier Part Number
PS1800-20
Alternate Part Numbers
Alternate Part Number C1DH73, Alternate Part Number MI-01038248, Alternate Part Number MINO-00407X30231
Product Weight
0.01 lbs
Product Questions & Answers 2

Product Questions & Answers

got a cylinder with a 1.25 bore and a 0.94 groove dia, is this the right Style 1800 seal for it?
Question by: Kurt R on Jul 11, 2025, 11:41 AM
The key callouts match what you listed: it is a Style 1800 piston seal sized for a 1.25 inch bore with a 0.94 inch groove diameter. It also has a 0.067 inch seal cross section and 0.116 inch seal height, with tight tolerances on the bore, groove width, and seal height to help it seat consistently.
Answer by: Customer Support on Jul 13, 2025, 6:33 AM
Reckon this seal will fit a cylinder with a 1.25-inch bore? Just wanna make sure before I order.
Question by: Ross H on Jun 17, 2025, 8:26 AM
This Style 1800 seal is indeed made for cylinders with a 1.25-inch bore. The product description notes the groove diameter should be 0.94 inches.
Answer by: Customer Support on Jun 18, 2025, 3:24 PM

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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) Seal Height Tolerance (in) Groove Width Tolerance (in) Price Buy Now
PS1800-20 1.25 0.116 0.067 0.94 1.249 ±0.002 +0/-0.005 +0.006 / -0 +0.005 / -0 ±0.002
PS1800-24 1.5 0.116 0.067 1.19 1.499 ±0.002 +0/-0.005 +0.006 / -0 +0.005 / -0 ±0.002
PS1800-32 2 0.116 0.067 1.69 1.999 ±0.002 +0/-0.005 +0.006 / -0 +0.005 / -0 ±0.002
PS1800-36 2.25 0.116 0.067 1.94 2.249 ±0.002 +0/-0.005 +0.006 / -0 +0.005 / -0 ±0.002
PS1800-40 2.5 0.116 0.067 2.19 2.499 ±0.002 +0/-0.005 +0.006 / -0 +0.005 / -0 ±0.002
PS1800-48 3 0.269 0.087 2.44 2.999 ±0.002 +0/-0.006 +0.006 / -0 +0.005 / -0 ±0.002
PS1800-56 3.5 0.269 0.087 2.94 3.499 ±0.002 +0/-0.006 +0.006 / -0 +0.005 / -0 ±0.002
PS1800-64 4 0.269 0.087 3.44 3.999 ±0.002 +0/-0.006 +0.006 / -0 +0.005 / -0 ±0.002
PS1800-68 4.25 0.269 0.087 3.69 4.249 ±0.002 +0/-0.006 +0.006 / -0 +0.005 / -0 ±0.002
PS1800-72 4.5 0.269 0.087 3.94 4.499 ±0.002 +0/-0.006 +0.006 / -0 +0.005 / -0 ±0.002
PS1800-80 5 0.269 0.087 4.44 4.999 ±0.002 +0/-0.006 +0.006 / -0 +0.005 / -0 ±0.002
PS1800-88 5.5 0.362 0.142 4.738 5.499 ±0.002 +0/-0.007 ±0.005 +0.005 / -0 ±0.002
PS1800-96 6 0.362 0.142 5.238 5.999 ±0.002 +0/-0.007 ±0.005 +0.005 / -0 ±0.002