12 Parker Velcon P/N NSN (National Stock Number) Spec. Dim (in.) Endcaps Seal Blind Cap Max Rated Flow (USGPM) OAL OD I-420A4 4330-01548-4867 Category M100: API/EI 1581, 5th Ed. 20 3.625 Injection molded glass filled nylon 6/6 O-ring, both ends N/A 20 I-420MM 4330-01511-8209 Category M: API/EI 1581, 5th Ed. and MIL-PRF-52308J I-420MMA 4330-01477-7985 I-420MMF 4330-00931-2472 MIL-PRF-32148 20.125 3.75 Aluminum Flat gaskets N/A 17.5 I-424MMF 4330-00931-2473 24.125 3.75 Aluminum Flat gaskets N/A 21 I-440A4 4330-01548-6906 Category M100: API/EI 1581, 5th Edition 39.875 3.625 Injection molded glass filled nylon 6/6 O-ring, one end Opposite End 40 I-440MM 4330-01511-8268 Category M: API/EI 1581, 5th Ed. and MIL-PRF-52308J 39.875 3.625 Injection molded glass filled nylon 6/6 O-ring, one end Opposite End 40 I-440AMM N/A Category M: API/EI 1581, 5th Ed. 39.875 3.625 Injection molded glass filled nylon 6/6 O-ring, both ends N/A 40 I-620MM 4330-01516-6994 Category M: API/EI 1581, 5th Ed. 20.125 6.0 Aluminum Flat gaskets N/A 45.5 SPECIFICATIONS • Changeout Differential Pressure: 15 psid • Maximum Pressure Ratin: 75 psid • Maximum Operating Temperature: 160 °F • Micron Rating: 0.4 CARTRIDGE SELECTION
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