1220-00-025-0004

4720-01-658-9544 4720016589544 016589544 is a flexible, tubular item having a nonmetallic tube inner conveying surface and one or more reinforcement layers of a metallic or nonmetallic material. it is designed to convey gasses, liquids, or solids. for items with fittings on one or both ends, see hose assembly, nonmetallic. excludes hose, air duct; and hose air duct, air breathing.

1560-01-672-7012 1560016727012 016727012 is an access cover which is an integral part of the airframe structure of an aircraft. excludes cover, access.

7643-13-119-6554 7643131196554 131196554 is a map, chart, or geodetic product, distributed by agencies such as the defense mapping agency, which is associated with land navigation, tracking, and charting.

3030-99-119-6554 3030991196554 991196554

2590-22-119-6554 2590221196554 221196554 is a flat metal or plastic item of various peripheral shapes having a solid (not laminated) cross-section. it is designed to maintain a predetermined distance between two surfaces. for round items without a hole having a solid rectangular cross-section use disk, solid, plain. for round or hexagonal items with only one hole centrally located and with the length (thickness) exceeding 25 percent of the outside diameter or distance across peripheral flats, see spacer, sleeve. the thickness between the two parallel bearing surfaces must be 0.006 inch, (0.152 mm) or more for items less than 1/4 inch (6.35 mm) across the peripheral diameter, or smallest overall outside dimension, or must be 0.016 inch (0.406 mm) or more for items 1/4 inch (6.35 mm) or greater across the peripheral diameter or smallest overall outside dimension. for items with a thickness less than those indicated above, see shim. for items with one hole centrally located conforming to the above dimensional criteria use washer, flat or spacer, ring as applicable. when thickness and/or outside diameter or smallest overall outside dimension is designated as a tolerance/dimension the maximum dimension will be used to determine compliance. excludes gasket&#59; insulator (as modified) and mounting pad, electrical-electronic component.