Style 2700 Polyurethane Piston Seal, 4.50 Inch Bore Diameter, 3.94 Inch Groove Diameter, Inch Groove Width

Bore 4.50	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 3.94	Groove Width Tolerance (in) ±0.002	Piston Dia. F 4.50	Piston Dia. Tolerance (in) +0/-0.014	Seal Cross Section C 0.09	Seal Height B 0.27	Seal Height Tolerance (in) +0.005 / -0	Supplier Part Number PS2700-72	Alternate Part Numbers Alternate Part Number C1DJ11	Product Weight 0.05 lbs

Product Questions & Answers

What size bore is this seal made for? Just want to make sure it'll fit my cylinder.

Question by: Freddie H on Jan 15, 2026, 9:34 AM

This seal is designed for cylinders with a 4.50 inch bore diameter. The tolerances are plus or minus 0.002 inches, so you have a little wiggle room.

Answer by: Customer Support on Jan 16, 2026, 1:48 PM

Model Number	Bore	Seal Height B	Seal Cross Section C	Groove Dia. E	Piston Dia. F	Groove Width Tolerance (in)	Seal Height Tolerance (in)	Cross Section Tolerance (in)	Piston Dia. Tolerance (in)	Bore Tolerance (in)
PS2700-112	7	0.362	0.142	6.238	6.999	±0.002	+0.005 / -0	±0.005	+0/-0.014	±0.002
PS2700-32	2	0.116	0.067	1.69	1.999	±0.002	+0.005 / -0	+0.006 / -0	+0/-0.009	±0.002
PS2700-56	3.5	0.269	0.087	2.94	3.499	±0.002	+0.005 / -0	+0.006 / -0	+0/-0.014	±0.002
PS2700-64	4	0.269	0.087	3.44	3.999	±0.002	+0.005 / -0	+0.006 / -0	+0/-0.014	±0.002
PS2700-72	4.5	0.269	0.087	3.94	4.499	±0.002	+0.005 / -0	+0.006 / -0	+0/-0.014	±0.002
PS2700-80	5	0.269	0.087	4.44	4.999	±0.002	+0.005 / -0	+0.006 / -0	+0/-0.014	±0.002
PS2700-96	6	0.362	0.142	5.238	5.999	±0.002	+0.005 / -0	±0.005	+0/-0.014	±0.002