The 7721-9PPSG is a shoulder washer made from 40% glass-filled polyphenylene sulfide (PPS), a chemically inert material. It is designed to accommodate size 4 and M3 screws, with an overall diameter (A) of 7.62 mm and a shoulder diameter (D) of 3.02 mm. This RoHS compliant component offers a maximum recommended service temperature of 260°C (500°F). With a recommended installation torque of 0.565Nm to 0.678Nm, it is suitable for providing electrical insulation and mechanical support in high-temperature electronic assemblies.