The ISO-KF Flange With Pipe Thread Female is designed for ISO-KF vacuum systems where a female pipe thread connection is required for reliable integration of instrumentation, fittings, or auxiliary line connections. Based on the product sheet image, it is available with FKM O-ring sealing, a pressure range of 1 × 10⁻⁸ mbar to 500 mbar, and an O-ring temperature range of -15 to 150 °C. The sheet shows two stainless steel material sections; the second is clearly labeled Stainless Steel 316L / 1.4404, and the first appears to correspond to Stainless Steel 304 / 1.4301 based on the catalog’s order-number pattern.