SPECIFIC GRAVITY - The ratio of the density (mass per unit volume) of a material to that of water.
SPECIFIC INDUCTIVE CAPACITY - Dielectric constant of insulating material. Abbreviated as K, SK, SIC.
SPHINCTER RING - A high ratio heat shrinkable strain relief grommet that can be placed over the cable assembly after the assembly is fabricated.
SPIRAL SHIELD - A metallic shield of fine stranded wires applied spirally rather than braided.
SPIRAL WRAP - The helical wrap of a material over a core.
SPLICE - A permanent joint between two optical waveguides.
SPOOL - Circular container on which wire is wound for storage or transit, usually made of plastic, paper, or metal.
SPT-1 - Same as SP-1 except in plastic.
SPT-2 - Same as SP-2 except in plastic.
SPT-3 - Same as SP-3 except in plastic.
sq. - Abbreviation for square.
SR - Abbreviation for silicone rubber insulated cable, 600 volt.