156 Buna-N O-Ring 70 Duro, 4-1/4" ID x 4-7/16" OD x 3/32" Width

156 Buna-N O-Ring 70 Duro, 4-1/4" ID x 4-7/16" OD x 3/32" Width

$11.99
Sale price  $11.99 Regular price  $17.99
Skip to product information
156 Buna-N O-Ring 70 Duro, 4-1/4" ID x 4-7/16" OD x 3/32" Width

156 Buna-N O-Ring 70 Duro, 4-1/4" ID x 4-7/16" OD x 3/32" Width

$11.99
Sale price  $11.99 Regular price  $17.99
FREE shipping on this itemShips from West Long Branch, NJ. Typically arrives in 3–7 business days.
30-day returnsChanged your mind? Send it back within 30 days. Return policy
Secure checkoutQuestions? Call 1-888-460-3822 · Mon–Fri 9–5 ET

Key features

  • Precision Pack for Maintenance Kits​: Package contains 10 pieces of 156 O-rings, sized at 4-1/4" ID, 4-7/16" OD, 3/32" Width. An essential component for professional maintenance and repair inventories.
  • High-Performance Nitrile Material​: Made from Buna-N (Nitrile) rubber, offering excellent resistance to oils, fuels, hydraulic fluids, and mild corrosive media, ensuring durability and a long service life in demanding conditions.
  • AS568 Standard & Reliable Seal​: Complies with Aerospace Standard AS568A. The precise round cross-section and 70A durometer provide a consistent, reliable seal for medium-pressure applications in industrial systems.
  • Extreme Temperature Resistance​: Operates flawlessly across a wide temperature spectrum from -22°F (-30°C) to 212°F (100°C), making them ideal for high-heat engine bays and cold storage machinery alike.
  • Reliable High-Pressure Seal​: The uniform round cross-section ensures even stress distribution under medium-pressure conditions, preventing extrusion and maintaining a tight seal on overlapping cylindrical surfaces to stop leaks effectively.

Free shipping included. 30-day hassle-free returns.