HRU09-0.31-09 - AS568-109 Replacement 70 Duro Nitrile U-Cup Seal

Qty Discounts Prices
25-499 $1.540	500-1,999 $0.774	2,000-5,999 $0.542	6,000+ $0.434

$1.540

Model: HRU09-0.31-09
Dimensions: 5/16" ID X 1/2" OD X 3/32" HT
666-109
75 in Stock

Add to Cart:

Min Qty: 25

5/16" ID X 1/2" OD X 3/32" HT– AS568-109 Replacement

HRU09-0.31-09 Homogeneous U-Cup Seal – Product Description:

Engineered for performance and priced for value, the HRU Homogeneous U-Cup Seal is the go-to replacement for AS568 O-Rings and in demanding pneumatic and hydraulic applications. Whether you're maintaining industrial cylinders, upgrading automation systems, or seeking a more reliable alternative to standard O-Rings, this U-Cup delivers a perfect balance of sealing integrity, durability, and cost-efficiency. The 70 durometer Nitrile material provides long-lasting resistance to oils and hydraulic fluids, making it a smart choice for OEMs, MRO professionals, and field technicians alike. With immediate availability and expert support, The O-Ring Store LLC ensures you get the right seal the first time—every time.

Direct AS568-109 replacement – Part # HRU09-0.31-09, 666-109
Dimensions: 5/16" Inside Diameter x 1/2" Outside Diameter x 3/32" Height
Homogeneous U-Cup Seal – also known as block vee seal or Pruva™ U-Cup / Huva Cup
Single-material design ensures predictable and uniform sealing in dynamic applications
Engineered for low-pressure hydraulic and pneumatic systems
Performs reliably as a rod or piston seal in linear motion equipment
Maintains sealing integrity in pressures up to 500 PSI
Manufactured from 70 durometer Nitrile (Buna-N) – excellent resistance to oils, fuels, and many hydraulic fluids
Operating temperature range for Nitrile: -40°F to +212°F (-40°C to +100°C)
Alternative compounds available upon request: FKM (Viton®), EPDM, Neoprene, and more

Ideal For Use In: