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Federal Supply Class
A fitting having four branches in the same plane whose axes form right angles. The connections have machine threads (straight threads other than pipe or hose series) designed to accommodate a tube or are unthreaded and designed to accommodate a tube. It is designed to be used as a junction at the intersection of tubing and/or tube fittings. It may have side inlet(s).
Commercial and Government Entity Code (Supplier Data)
Reference Numbers (Part Numbers)
III END ITEM IDENTIFICATION
III PART NAME ASSIGNED BY CONTROLLING AGENCY