3110-01-671-1825

5340-01-570-1390 5340015701390 015701390 is a cover of various shapes, sizes and materials, specifically designed to fit over the opening(s) of mechanical connections such as drive lines, air and fluid ducts and the like, of various equipments to provide mechanical protection and/or prevent the entrance of foreign matter during shipping, storage or maintenance.the cover is not an integral part of the equipment when the equipment is installed in the end item.it is designed to be attached by means of bolt holes, slots, mounting ears, tabs and the like.see also cap (1), protective, dust and moisture seal.excludes cover, access.

6110-14-570-1390 6110145701390 145701390 is an enclosure which includes mounts, and protects such items as switches, circuit breakers, jacks, fuseholders, connectors, terminals and/or terminal boards, resistors, capacitors, transformers, and the like. it is primarily designed to distribute electrical power from one or more primary power source(s) such as generator(s) and battery(ies) to one or more electrical and/or electronic item(s). it may include a cover or door. for enclosures which include only circuit breakers, switches, jacks, fuseholders, terminals and/or terminal boards, see circuit breaker box; switch box; jack box; fuse box and terminal box. for enclosure primarily designed to interconnect two or more electrical and/or electronic items, except primary power source(s) see interconnecting box. for empty boxes which are designed to mount, but do not include electrical devices such as switches, jacks, fuseholders, terminals and/or terminal boards, see junction box. see also interconnecting cabinet; control (as modified); panel (1) (as modified); relay assembly; panel, power distribution; switchboard (as modified) and panel, fuse. excludes connector-switch.

2540-00-570-1390 2540005701390 005701390

1560-99-301-9933 1560993019933 993019933 is an item composed of fiber, plastic foam, synthetic material, etc., in various shapes and sizes and may contain bolt hole(s). it is attached to the airframe and designed to entrap and dissipate sound energy. excludes insulation,thermal (as modified); insulation blanket,cabin,aircraft; and insulation blanket,thermal (as modified).