RR-S-550
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RR-S-550 is a federal specification that covers mechanical sockets for mechanical wire ropes used in rigging, hoisting, towing, stowage, excavating, logging, and slump removing equipment, and marine applications.
Muncy Exceptions to RR-S-550
Spelter Sockets
General Exception Paragraph
Muncy's spelter sockets are dimensionally compliant with RR-S-550.
Specific Exceptions by Section
3.2.1: Muncy's spelter sockets are made of a carbon steel composition equivalent in function and strength to the requirements of this section.