S-91083A042 1.625" ID x 3" OD ASME B18.21.1 SAE Washers

Key Features & Benefits at a Glance

• Superior Load Distribution - Large 3" outer diameter effectively spreads pressure to prevent surface damage and material deformation
• Precision Fit for 1 1/2" Fasteners - 1.625" inner diameter ensures perfect alignment and secure seating on standard screw sizes
• Robust Steel Construction - High-strength steel material provides exceptional durability and resistance to deformation under heavy loads
• ASME B18.21.1 Compliance - Manufactured to exacting industry standards for consistent quality and reliable performance
• Environmental Regulation Compliance - Meets RoHS 3 and REACH requirements for safe use in regulated industrial environments
• Optimized Thickness Range - 0.136-0.192" thickness provides ideal balance between strength and flexibility for various applications
• SAE Standard Compatibility - Designed to work seamlessly with SAE inch system components and specifications

Professional Applications & Engineering Value

These SAE flat washers deliver critical engineering solutions for industrial applications requiring reliable load distribution and surface protection. The steel construction ensures these washers maintain integrity under substantial pressure, preventing bolt loosening and joint failure in heavy machinery, structural assemblies, and equipment mounting systems. The precise 1.625" ID and 3" OD dimensions work optimally with 1 1/2" screw sizes, providing maximum bearing surface while maintaining proper clearance. This flat washer design effectively solves common engineering challenges including surface marring, stress concentration, and fastener embedment in softer materials, making them ideal for construction equipment, industrial machinery, and heavy-duty structural connections where vibration resistance and long-term reliability are paramount.

Specification Summary & Compliance

This SAE flat washer features precise dimensional specifications with 1.625" inner diameter, 3" outer diameter, and thickness ranging from 0.136" to 0.192". Manufactured to ASME B18.21.1 standards for inch-series flat washers, ensuring dimensional accuracy and performance reliability. The product is fully RoHS 3 (2015/863/EU) compliant and meets REACH (EC 1907/2006) requirements, confirming environmental regulation adherence for industrial use. Designed specifically for use with 1 1/2" screw sizes in inch measurement systems, providing guaranteed compatibility and performance in standard industrial applications.