SAE Series SAE Code 61 Push in Flange Protectors for SAE Code 61 Hydraulic Flange Protectors for SAE Code 61 (3000 - 5000 PSI) and Code 62 (6000 PSI) provide full flange coverage. Simply insert into the center bore and the lugs will align into the bolt hole pattern. Designed to fit the following hydraulic flanges: BSPP, NPTF, SAE Threads and Deep Socket Weld Material: Low Density Polyethylene Color: Coded by Size: Code 61 Blue, Code 62 Red SAE Code 62 SWLD Series Push in Socket-Weld Fitting Plugs Socket weld plugs are designed to provide maximum protection for socket weld fitting applications. Slight tapered wall design on the plug O.D. to provide a secure, friction fit with the mating fitting I.D. and allows for the manufacturing tolerance variance of the fitting. Material: Low Density Polyethylene B Color: Red C A 388 * For other material and color options, contact customer service.