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PENN ENGINEERING stocks many popular Flange Gaskets and O-rings in various materials and sizes including Silicone, Porcupine Metalastic, EMI, Parker Seals, Conductive O-rings, and others. We have a large inventory of Gaskets and O-rings in most Waveguide sizes as well as odd sizes.
We also stock Hardware Kits, which include RF Seals or O-rings and all necessary hardware for assembling flange couplings for many popular flange sizes and styles.