Tap each hole both ends, 0.112-40 unc, 0.170 in. Deep for insertion of 4 helicoils
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.
Classification: Articles of aluminum nesoi
NSN 5915-01-286-0603
NSN 6685-01-381-5512
NSN 6620-01-160-3475
NSN 5915-00-338-8610
NSN 6685-01-045-8864
NSN 5920-01-041-5378
NSN 6135-01-470-9738
NSN 5835-00-954-2833
NSN 7035-01-278-1379
NSN 6620-01-451-3742
NSN 5835-01-515-6537
NSN 7035-01-347-4429