S-92217A479 0.281" ID x 1" OD ASME B18.21.1 ASME Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance from 18-8 stainless steel construction, ideal for harsh industrial environments and outdoor applications
• Precise dimensional fit with 0.281" ID and 1" OD, ensuring reliable performance with 1/4" fasteners and preventing assembly issues
• Optimized load distribution across the 1" outer diameter, reducing surface pressure and preventing damage to connected materials
• Industry-standard compliance with ASME B18.21.1 specifications, guaranteeing consistent quality and interchangeability
• Environmental regulation adherence with RoHS 3 and REACH compliance, meeting global safety and sustainability requirements
• Excellent durability from stainless steel material, maintaining performance under vibration and thermal cycling conditions
• Broad compatibility with inch-system components, simplifying inventory management for maintenance and assembly operations

Professional Applications & Engineering Value

These 18-8 stainless steel flat washers deliver critical engineering solutions where corrosion resistance and dimensional precision are paramount. The 0.281" ID provides exact alignment with 1/4" screws, eliminating play that can lead to joint loosening under vibration. The generous 1" OD distributes clamping force effectively, protecting soft materials and painted surfaces from indentation. Manufactured to ASME B18.21.1 standards, these washers ensure reliable performance in demanding applications including machinery assembly, electrical enclosures, marine hardware, and food processing equipment. The stainless steel composition resists chemical exposure and atmospheric corrosion, significantly extending service life in challenging industrial environments while maintaining mechanical integrity.

Specification Summary & Compliance

This flat washer features precise inch-system dimensions with 0.281" inner diameter, 1" outer diameter, and thickness ranging 0.056-0.071". Manufactured in compliance with ASME B18.21.1 standard specifications for flat washers. The product meets RoHS 3 (2015/863/EU) compliance for hazardous substance restrictions and REACH (EC 1907/2006) requirements regarding chemical substances. Designed specifically for use with 1/4" screw sizes in industrial and mechanical applications.