BACK-UP CONTOURED

High Performance Seals Part Number: K293X36B

Contoured back-up rings are anti-extrusion devices that are normally recommended when systemic pressure exceeds 1500 psi. Back-up rings can also prolong the O-Ring's life in these high pressure operating environments.  These high performance seals' contoured back-up rings are molded from a special high modulus, oil-resistant 90 durometer nitrile (Buna-N) compound.

This kit's 36 compartments include 293 back-up rings in a variety of 36 sizes. Its contents identification card shows dimensions of each ring on one side and convenient silhouettes on the other.

Sizes and quantities include:

10 each: 005, 006, 007, 008, 009, 010, 011, 012, 013, 014, 015, 016, 017, 018, 110, 111, 112, 113, 114, 115, 116  
  7 each: 210, 211, 212, 213  
  5 each: 117, 118, 119, 120, 121, 214, 215, 216, 217, 218, 219