590 Back-Up Ring
Style 590 Back-up Rings feature exceptional strength and abrasion resistance along with a 53 Shore D hardness rating which makes them suitable for high pressure service where extrusion is a problem. Primarily used as a u-seal back-up,these rings can be used with o-rings. They also retrofit urethane and PTFE back-up rings, with greater performance characteristics. “S” suffix designates a split ring.
SEAL INFORMATION | |
MATERIAL | HIGH PERFORMANCE URETHANE |
TEMPERATURE RANGE | -40° TO +275° F |
PRESSURE RANGE | VARIES ACCORD ING TO DIAMETRAL CLEARANCE |
Part Number | A Nom. ID | B Nom. OD | C Nom. Ht |
1/8″ C/S | |||
590-15 590-17 590-19S 590-214 590-227 590-228 590-237 590-239 | 1/2 5/8 3/4 1 2-1/8 2-1/4 3-3/8 3-5/8 | 3/4 7/8 1 1-1/4 2-3/8 2-1/2 3-5/8 3-7/8 | 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 |
5/32″ C/S | |||
590-32 590-34S 590-36 | 1 1-3/16 1-3/8 | 1-5/16 1-1/2 1-11/16 | 1/16 1/16 1/16 |
3/16″ C/S | |||
590-324 590-325 590-45 590-45S 590-46 590-48 590-49 590-49S 590-338 590-341 590-345 590-346 590-347 590-349 590-352 590-354 590-358 | 1-3/8 1-1/2 1-5/8 1-5/8 1-3/4 2 2-1/8 2-1/8 3-1/8 3-1/2 4 4-1/8 4-1/4 4-1/2 4-7/8 5-1/8 5-5/8 | 1-3/4 1-7/8 2 2 2-1/8 2-3/8 2-1/2 2-1/2 3-1/2 3-7/8 4-3/8 4-1/2 4-5/8 4-7/8 5-1/4 5-1/2 6 | 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 |
7/32″ C/S | |||
590-54 590-57 590-57S 590-58 | 2-1/2 2-13/16 2-13/16 3 | 2-15/16 3-1/4 3-1/4 3-7/16 | 1/16 1/16 1/16 1/16 |
1/4″ C/S | |||
590-66 590-66S 590-68 590-70 590-70S | 3-1/2 3-1/2 4 4-1/2 4-1/2 | 4 4 4-1/2 5 5 | 1/16 1/16 1/16 1/16 1/16 |
9/32″ C/S | |||
590-73S 590-75 590-5.43X6S 590-6.43X7S | 4-7/16 5 5-7/16 6-7/16 | 5 5-9/16 6 7 | 1/16 1/16 1/16 1/16 |
5/16″ C/S | |||
590-79 590-79S 590-5.5X6.12 590-83 590-83S 590-84 590-84S | 5-3/8 5-3/8 5-1/2 6-3/8 6-3/8 7-3/8 7-3/8 | 6 6 6-1/8 7 7 8 8 | 1/16 1/16 1/16 1/16 1/16 1/16 1/16 |
11/32″ C/S | |||
590-85S | 9-5/16 | 10 | 1/16 |
3/8″ C/S | |||
590-86S | 11-1/4 | 12 | 1/16 |
13/32″ C/S | |||
590-13.18X14S | 13-3/16 | 14 | 1/16 |
1/2″ C/S | |||
590-11X12S 590-87S | 11 13 | 12 14 | 1/16 1/16 |