8400 SERIES BUNA CUP 5-3/8 X 6 X 5/16W

The NU8410-0537 is a Buna-N (Nitrile) U-Cup U-Cup Seal supplied with a 5-3/8 inch inside diameter, a 6 inch outside diameter, and a height of 5/16 inch. This u-cup seal uses a U-shaped profile that system pressure forces outward, tightening the seal as pressure rises.

Buna-N (Nitrile) is specified here for economical choice for high-volume maintenance programs, strong abrasion and tear resistance. It resists hydraulic fluids, many alcohols, and water. It should not be specified for service in ketones or ozone and direct sunlight.

Maintenance and OEM teams specify it across general industrial maintenance, agricultural equipment, and fluid power.

Stocked as NU8410-0537 and sold individually. Application requirements vary, so validate compatibility with your process conditions prior to installation. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.