AST 50 Specifications

Mechanical Seals and Gasket Supply is our Specialty. American Seal and Packing is a leading manufacturer & distributor of mechanical seals, Grafoil, gasket material, cut gaskets and quality o-rings providing innovative solutions to mechanical seal problems. We're finding better ways to serve our customers all the time. In addition to our expanding line of industrial mechanical seals, we're updating and upgrading this web site to provide you more information about our company and our products.

Features Dimensions Specifications

AST 50



Metal Components:   316 SS standard.  Hastelloy C-276* available
Rotating Seal Face:  P-658RC Carbon or Silicon Carbide
Stationary Seal Face:  Silicon Carbide or Alumina Ceramic
Springs:  Hastelloy C-276   
Cabot Stellite Div. Reg. TM
O-Rings:  Fluoroelastomer installed, EPDM supplied as alternate.
Aflas or Kalrez O-rings also available.


Pressure:  28 in (710 mm) Hg vacuum to 150 PSIG (11 bar) maximum, depending on shaft size and speed.

Temperature:  -20°F to 400°F (-30 C to 205°C) with Fluoroelastomer O-rings; -65°F to 300°F (-55°C to 150°C) with EPDM O-rings

Our Select Manufacturers

  • Sepco
  • FMI-Spa
  • Flow Serve
  • AST

Our Select Manufacturers

  • Utex Industries
  • Graftech
  • Lamons
  • Vulcan


  • Call us at: 714-361-1435
  • Fax: 714-593-9701