Description
O-rings are used for static sealing and some dynamic applications.
Features
Cat® O-rings are made from materials compatible with the fluids, temperatures and pressures in Cat engines and machines. These materials resist wear and extrusion, giving the seals excellent compression set resistance. In addition, some Cat O-rings are coated with PTFE to minimize seal twisting and cutting during installation.
Our O-rings are dimensioned to strictly follow tight tolerances, ensuring they are properly seated in the seal groove with the right seal compression.
With more than 2500 different sizes and materials of O-rings, Cat O-rings are the best solution for the O-ring needs of your Cat and other mobile equipment.
Cat sealing systems prevent leaks and contamination of more expensive parts. Genuine Cat seals protect your investment.
Applications
O-rings are used in many static and dynamic joints in Cat machines and engines.
Specifications
| Material Hardness | 90A |
|---|---|
| Polymer | NBR (Nitrile butadiene) |
| Compatible | Anti-Wear Agents; Alpha-Olefin-Based Synthetic Lubricants; Glycols; Hydrocarbon Fuels; Petroleum-Based Lubricants; Silicone Oils and Greases; Water, Water-Based Engine Coolants; ORFS, STORS Seals |
| Cross-Section Diameter | 2.4 mm (0.094 in) |
| Material | NBR (90) |
| Inside Diameter | 20.8 mm (0.819 in) |
Compatible Equipment
- Generator Sets: 3512B, C7.1
- Mini Excavators: 303.5E, 307B, 307, 307D, 305.5E, 303.5D, 303.5C, 307C
- Excavators: 330D L, 305E2 CR, 6015, 340, 333, 320 GC, 320 GX, 320, 320D3, 326, 336 GC, 336, 336F L, 323, 329D L, 320D2 L, 329E L, 320D L, 320D FM, 320C, 312E L, 312D2 GC, 330GC, 320B, 328D LCR, 325B L, 312F, 330 L, 312C, 336D L, 330D2, 336D2 GC, 315C, 325B, 320D GC, 330C L, 325C, 330D2 L, 330D, 330C, 336E, 336D2 L, 320D RR, 311B, 336F, 313D2, 325D, 336E L, 323GC, 313F LGC, 336F L XE, 323D2 L, 330 GC, 323D2, 323D L, 325D L, 324D L, 312C L, 324D, 336E H, 320E, 329E, 314D LCR, 313D2 GC, 312E, 320D2 GC, 326GC, 325, 336E LH, 312D2 L, 336D2 XE, 311D LRR, 336E LN, 313D2-GC, 312D L, 336F LN, 325C L, 385C, 365B, 385C L, M325D L MH, 365B L, 390D, 6015B, 340D2 L, 365C, 350 L, 385B, 345B, 365C L, 385C FS, 340D L, 323 GX, 335, 345 GC, 3101, 395, 326 GC, 323 GC, 6040, 323D, 315F LCR, 320C L, 330B, 313F L, 326D L, 335F LCR, 314D CR, 312D2, 333 GC, 320D2, 336D2, 330, 320D, 326D2, 326D2 L, 305, 329D, 336D, 303.5E2 CR, 308D, 305C CR, 329D2, 329D2 L, 303C CR, 374D L, 390D L, 308E
