This 6F OFC RDSO-approved optical fiber cable on best price is designed for underground telecom and railway signaling applications. Built with single-mode ITU-T G. 652D fibers and protected by corrugated steel tape armor, it ensures high durability in harsh environments. Imm (main cord) Material Stainless Steel Color Silvery White UL94 V-0 (*Burning stops within 10 seconds on a veritcal specimen, no drips of flaming particles. Specifications are correct at time of printing and subject tochange or alteration. 6 Fiber Multimode Fiber Optic Cables are available at Mouser Electronics. With an outer diameter (OD) of 5. 19" Jacket Diameter, Black, Standard: OM3 Fiber Optic Cable, Multimode, 6 Strand, 50 Micron, OFNP, Plenum, Indoor/Outdoor, 0.