FSC 1560: This class includes fabricated system parts that are permanently attached or peculiar to the integral airframe of an aircraft, such as support structural components, spars, ribs, ailerons, stabilizers, bulkheads.
FSC 1620: Aircraft Landing Gear Components Includes Shock Struts and Components; Installation Elements, such as Torsion Bars, Vibration Links, Drag Struts; Landing Gear Trunions, Axles and Shimmy Dampeners; Specially designed hydraulic power steering system components. Excludes Mounting Braces and Mounting Plates permanently installed on aircraft (FSC 1680); Landing Wheels, Skis, and Floats (FSC 1630); Wheel Brakes and Wheel Brake Cylinders (FSC 1630).
FSC 1650: Hydraulic and Pneumatic Accumulators, Pumps, Motors, Actuating Cylinders, and Filters; De-icing Boots; Fluid Type De-icing Pumps, Valves and Filters; Vacuum System Oil Separators; Pneumatic Pressurization Equipment other than that for pressurizing cabins and compartments.
FSC 1680: Control Assemblies, Push-Pull; Brace, Positioning Cargo Ramp Stowed on Board; Cockpit Mounted Control Quadrants; Actuators, Electromechanical and Mechanical; Ventilators; Relief Tubes; Map Holders; Aerial Glider Towing Accessories Attached to Aircraft; Belts, Safety and Lap; Harness, Shoulder and Safety; Litter Attaching Supports; Electric Windshield Wipers; Aircraft Onboard Inert Gas Generators; Aircraft Furniture; Aircraft Mounted Winches and Hoists; In-Flight Refueling System Components, including Fuel Components; Aircraft Curtains; Cable Tension Regulators; Sun Visors; Rear-View Mirrors; Mechanical Transmissions, Gearboxes and Constant Speed Drives Specially Designed for Aircraft.
FSC 2840: Includes compressor and turbine rotors; blades; combustion chamber; accessory gear box; afterburner; exhaust cone; reservoirs, hydraulic; tank, oil.
FSC 3120: Bearings, Plain, Unmounted, encompasses bearings that generally are one piece that retain and position moving and/or rotating parts, usually with groves, fittings, or facilities for lubrication, or include pre-lubrication. FSC 3120 includes sleeve bearings; split bearings; washer type bearings; plain bearings; and jewel bearings. Note that FSC 3120 does not include antifriction bearings or mounted bearings. For antifriction bearings, see FSC 3110. For mounted bearings, see FSC 3130.
FSC 4010: Includes Bead Chain; Weldless Chain; Single Leg Chain Assemblies; Wire Rope; Wire Cord; Single Leg Wire Assemblies.
FSC 5300′s: Screws, bolts, studs, nuts and washers, nails, keys, pins, rivets, fastening devices, packing and gasket materials, metal screening, miscellaneous hardware, disks and stones, abrasives, abrasive materials, knobs and pointers, coil, flat and wire springs, rings, shims and spacers, prefabricated and portable buildings, rigid wall shelters, bridges fixed and floating, storage tanks,
FSC 5400’s: prefabricated and portable buildings, rigid wall shelters, bridges fixed and floating, storage tanks, scaffolding equipment and concrete forms, misc. prefabricated structures
FSC 5900’s: Resistors Capacitors Filters and Networks Fuses and Lightning Arresters Circuit Breakers Switches Connectors, Electrical Lugs, Terminals and Terminal Strips Relays and Solenoids Coils and Transformers Oscillators and Piezoelectric Crystals Electron Tubes and Associated Hardware Semiconductor Devices and Associated Hardware Microcircuits, Electronic Electronic Modules headsets, handsets, microphones & speakers electrical insulators & insulating materials electrical hardware & supplies electrical contact brushes & electrodes Optoelectronic Devices and Associated Hardware Antennas, Wayeguides and Related Equipment Synchros and Resolvers cable, cord, and wire assemblies Communication eqpmt amplifiers Electrical and Electrical Assemblies, Boards, Cards, and Associated miscellaneous electrical and elec components
FSC 6100: Motors, Electrical Electrical Control, Equipment, Generators and Generator Sets, Electrical Fuel Cell Power Units, Components and Accessories Solar Electric Power Systems, Transformers: Distribution and Power Stations Converters, Electrical, Rotating Converters, Electrical, Non-Rotating Batteries, Non-rechargeable Batteries, Rechargeable Wire and Cable, Electrical, Miscellaneous Electric Power and Distribution Equipment, Miscellaneous Battery Retaining Fixtures and Liners
