Types of Chain Slings In describing the type, the following symbols are used to explain and label the sling. Number of Chain Legs (First Symbol) S D T Q  Single Chain Sling Double Chain Sling (2 Legs) Triple Chain Sling (3 Legs) Quad Chain Sling (4 Legs)     Attachments (Second & 3rd Symbol) O P E R S SS   G       GN    F   L       LS      J     PH PC Oblong Master Ring or Sub-Assembly Pear Link Eliminator Round Master Ring Sling Hook Swivel Sling Hook Grab Hook (Cradle Style) Grab Hook (No Cradle) Foundry Hook Lodelok Hook, Shur-loc and OBK style Hook Lodelok Hook, Shur-loc and OBK (Swivel Type) J-Hook Plate Hook Plate Clamp Attachments (Continued) CH H E T SPS RPS BTS SH  W  X  Choker Hook Hammer Lock Eye Bolt Turnbuckle Shackle (Screw Pin) Shackle (Round Pin) Shackle (Bolt Type) Swivel Hoist Ring Web Connecter Specials     Sling Style(Adjustable Slings Only) /A  /B /C /SC No Chain Approximately With 1’ of Chain Chain Shortener (In Line) Shortening Clutch / Link   Additional and Special Sling Codes ENS END SAL DAL SB DB Endless Single Endless Double Single Adjustable Loop Double Adjustable Loop Single Basket Double Basket