Item must comply with requirements of defense supply center richmond production standard no. Ro0071
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; insulator (as modified) and mounting pad, electrical-electronic component.
NSN 6645-00-479-9334
NSN 5985-01-224-5865
NSN 5965-01-480-9229
NSN 4140-01-432-0292
NSN 6220-00-772-9791
NSN 5915-01-454-3175
NSN 6240-01-292-6374
NSN 6610-01-455-4977
NSN 6650-01-503-5419
NSN 5835-01-252-5879
NSN 5975-01-110-4627
NSN 5945-01-196-8585