S-92150A163 0.39" ID x 0.625" OD NAS1515-M6 Mil. Spec. Plastic Washers

Key Features & Benefits at a Glance

• Exceptional heat resistance for reliable performance in applications up to 500°F (260°C)
• Superior chemical resistance against corrosive substances, extending service life in harsh environments
• Precise dimensional fit with 0.39" ID and 0.625" OD ensuring proper seating for 3/8" screws
• NAS1515-M6 compliance guarantees consistent quality and performance in aerospace and industrial applications
• Environmental regulation compliance with RoHS 3 and REACH for global market acceptance
• Low friction PTFE construction reduces wear on mating surfaces and prevents galling
• Consistent thickness range (0.057-0.075") provides reliable load distribution and vibration resistance

Professional Applications & Engineering Value

These PTFE plastic flat washers deliver critical performance advantages in demanding industrial settings where conventional washers fail. The PTFE material maintains structural integrity and chemical stability in aggressive environments including chemical processing, semiconductor manufacturing, and food processing equipment. The NAS1515-M6 compliance ensures these washers meet rigorous aerospace standards for dimensional precision and material consistency. With exceptional temperature resistance up to 500°F, they prevent deformation and maintain sealing performance in high-heat applications like engine compartments and industrial ovens. The white PTFE construction offers excellent dielectric properties for electrical insulation applications while providing reliable load distribution for 3/8" screw installations across various industrial fastening systems.

Specification Summary & Compliance

This flat washer features precise inch system dimensions with 0.39" internal diameter and 0.625" external diameter, manufactured to NAS1515-M6 specifications for guaranteed dimensional accuracy and performance consistency. The washer meets critical industry standards including RoHS 3 (2015/863/EU) compliance for restricted substance control and REACH (EC 1907/2006) compliance for chemical safety regulations. The PTFE material provides consistent performance across the specified thickness range of 0.057-0.075" while maintaining mechanical properties at elevated temperatures up to 500°F.