S-92844A139 0.344" ID x 1.125" OD ASME B18.21.1 ASME Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance in harsh environments due to 316 stainless steel construction, ideal for chemical, marine, and outdoor applications.
• Precise dimensional fit with 0.344" ID and 1.125" OD ensures reliable alignment and load distribution for 5/16" fasteners.
• Compliance with ASME B18.21.1 standards guarantees consistent quality, interchangeability, and performance in mechanical assemblies.
• RoHS 3 and REACH compliant for safe use in regulated industries, supporting environmental and workplace safety goals.
• Durable and long-lasting material resists pitting and oxidation, reducing maintenance needs and replacement costs.
• Versatile for industrial use across various sectors, including construction, manufacturing, and plumbing, where chemical resistance is critical.
• Reliable load bearing surface helps prevent fastener loosening and damage to connected materials, enhancing assembly integrity.

Professional Applications & Engineering Value

These 316 stainless steel flat washers are engineered to address common industrial challenges such as corrosion-induced failure and material degradation in aggressive settings. The high molybdenum content in 316 grade stainless steel provides exceptional resistance to chlorides and acids, making these washers ideal for chemical processing, marine equipment, and food industry applications. Their precise inch system dimensions (0.344" ID x 1.125" OD) ensure a snug fit for 5/16" screws, distributing clamp load evenly to prevent surface damage and maintain joint stability. By meeting ASME B18.21.1 specifications, they deliver consistent performance in high-stress assemblies, reducing downtime and ensuring long-term reliability in demanding environments.

Specification Summary & Compliance

This flat washer features an inner diameter of 0.344", outer diameter of 1.125", and thickness range of 0.056-0.071", designed for use with 5/16" screw sizes in inch measurement systems. It conforms to ASME B18.21.1 standards for dimensional accuracy and mechanical requirements. The product is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant (as of 01/17/2023, 233 SVHC), ensuring adherence to environmental and safety regulations for hazardous substance restrictions.