S-91434A455 1.625" ID x 3" OD ASME B18.21.1 SAE Washers

Key Features & Benefits at a Glance

• Superior corrosion protection with black corrosion-resistant coated steel, extending service life in harsh industrial environments.
• Precise dimensional fit with 1.625" ID and 3" OD, ensuring reliable load distribution and secure fastening for 1 1/2" screws.
• Heavy-duty construction with thickness ranging from 0.136" to 0.192", providing enhanced stability and vibration resistance.
• Industry-standard compliance with ASME B18.21.1, guaranteeing consistent quality and interchangeability.
• Environmental regulation adherence through RoHS 3 and REACH compliance, supporting sustainable procurement and safe usage.
• Broad application versatility in SAE inch-system assemblies, suitable for machinery, construction, and automotive sectors.
• Cost-effective durability by reducing maintenance frequency and replacement costs due to robust material and coating.

Professional Applications & Engineering Value

This SAE flat washer is engineered to address critical challenges in industrial fastening, such as corrosion-induced failure and load instability. The black corrosion-resistant coated steel material provides a durable barrier against moisture, chemicals, and atmospheric exposure, making it ideal for outdoor equipment, marine applications, and high-humidity environments. Its 1.625" ID x 3" OD dimensions and ASME B18.21.1 specification ensure precise alignment and uniform pressure distribution, preventing bolt loosening and surface damage under heavy loads. By integrating RoHS 3 and REACH compliance, it meets stringent environmental standards without compromising performance, offering reliable engineering value for OEMs and maintenance teams requiring long-term, corrosion-resistant solutions in inch-system assemblies.

Specification Summary & Compliance

This washer adheres to ASME B18.21.1 standards for dimensional accuracy and performance, with an inner diameter of 1.625", outer diameter of 3", and thickness between 0.136" and 0.192". It is manufactured from black corrosion-resistant coated steel and is designed for use with 1 1/2" screws. The product fully complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and suitable for global industrial applications.