S-96659A134 0.344" ID x 0.688" OD ASME B18.21.1 SAE Washers
SAE Washers
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Basic Information
Dimension Parameters
Material & Strength Parameters
Installation & Application Parameters
Finish & Compliance Parameters
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Key Features & Benefits at a Glance
- Superior corrosion resistance from 18-8 stainless steel with black-oxide coating, ideal for harsh environments
- Precise dimensional fit with 0.344" ID and 0.688" OD ensuring reliable seating for 5/16" fasteners
- Enhanced load distribution through flat washer design, reducing surface pressure and preventing material damage
- Industry-standard compliance with ASME B18.21.1 specifications for consistent performance and interchangeability
- Environmental regulation adherence with RoHS 3 and REACH compliance, safe for regulated industries
- Durable construction maintaining integrity under vibration and thermal cycling in industrial assemblies
- Broad compatibility with SAE inch-system components, simplifying inventory and replacement
Professional Applications & Engineering Value
These black-oxide 18-8 stainless steel flat washers address critical challenges in industrial fastening systems where corrosion and component failure lead to costly downtime. The 18-8 stainless steel core provides inherent resistance to rust and chemical exposure, while the black-oxide surface treatment adds an extra layer of protection against oxidation and galling. Engineered to ASME B18.21.1 standards, these SAE flat washers ensure precise dimensional control for consistent load distribution across mating surfaces in machinery, automotive, and outdoor equipment assemblies. Their 5/16" screw size compatibility makes them ideal for maintaining bolt preload and preventing loosening under dynamic loads, significantly extending service life in demanding applications.
Specification Summary & Compliance
This flat washer features inch-system dimensions with 0.344" inner diameter, 0.688" outer diameter, and thickness ranging 0.051-0.080". Manufactured to ASME B18.21.1 specifications for dimensional accuracy and performance. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, containing no restricted substances above threshold limits.
