Precision Associates Incorporated Datasheets for Dynamic Seals

Dynamic seals include oil seals, hydraulic and pneumatic seals, exclusion seals, labyrinth seals, bearing isolators, and piston rings. They create a barrier between moving and stationary surfaces in applications such as rotating shafts and pistons rings.  This is a general search form; more detailed search forms are available.
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Product Name Notes
AN U-Cup Seals PAI AN U-Cups are made to the dimensions of Military Drawing AN 6226. Precision Associates’ Homogeneous Rubber U-Cups are the seal of choice for Pneumatic and low-pressure Hydraulic applications. Because...
Rubber V-Rings PAI Homogeneous Rubber V-Rings are made to the dimensions of Military Drawing AN 6225. Sizes exactly matching the drawing are noted with prefix number 6225 and suffix numbers of –1...
Kurv-Bak Seals PAI Kurv-Bak™ hard rubber back-up rings can be made in a variety of materials to help prevent early seal failure at higher pressures. Back-up Rings are used for one of...
Bi-Directional Pneumatic Piston Seals -- 8-Ring™ Precision Associate’s 8-Rings™ are used almost exclusively as piston seals in pneumatic applications requiring a low profile and long wear. Unlike O-Rings, 8-Rings will not roll or twist. 8-Seal’s unique...
AN Rod Wipers Precision Associates AN Rod Wipers are made to the exact dimmensions specified on Military drawing MS 28776.
H Style Rod Wipers Precision Associates H-Wipers combine a wiper with a U-Cup seal.
Straight Lip U-Cup Seals
U-Cup Rubber Seals
Precision Associates’ Homogeneous Rubber U-Cups are the seal of choice for Pneumatic and low-pressure Hydraulic applications. Because U-Cups do not rely on initial compression to seal, they are excellent in...
Linear Style Rod Wipers Precision Associates' Linear Style Wipers are similar to AN Wipers, but with a slightly heavier base.