Wesco Aircraft Holdings, Inc. distributes aerospace products and provides supply chain management services to the aerospace industry in North America and internationally. Its services include distribution, supplier relationships management, quality assurance, kitting, just-in-time delivery, chemical management, third-party logistics or fourth-party logistics program, and point-of-use inventory management. The company supplies approximately 563,000 active stock-keeping units, including hardware, chemicals, electronic components, bearings, tools, and machined parts. Its hardware products comprise blind and panel fasteners, bolts and screws, clamps, hi lok pins and collars, hydraulic fittings, inserts, lockbolts and collars, nuts, rivets, springs, valves, and washers; and chemicals include adhesives, sealants and tapes, lubricants, oil and grease, paints and coatings, industrial gases, coolants and metalworking fluids, and cleaners and cleaning solvents. The company's electronic components include connectors, relays, switches, circuit breakers, lighted products, wires and cables, and interconnect accessories; and bearings consist of airframe control bearings, rod ends, spherical and ball bearings, needle roller bearings, bushings, and precision bearings; and machined parts and tooling comprise brackets, milled parts, shims, stampings, turned parts, welded assemblies, and installation/removal tooling products. It also installs various products that include air and hydraulic tools, as well as drill motors; provides maintenance and repair services for tools; and rents or leases tools. The company serves airline-affiliated and independent maintenance, repair, and overhaul providers; and original equipment manufacturers and their subcontractors, as well as customers in the automotive, energy, health care, industrial, pharmaceutical, and space sectors. Wesco Aircraft Holdings, Inc. was founded in 1953 and is headquartered in Valencia, California.