A circular shaped item with an aperture manufactured to predetermined dimensions and designed for use as a seal in stuffing boxes, packing nuts, and the like. It may be (1) any nonmetallic molded or formed ring (except solid (without joint) rings having a square or rectangular cross section); or (2) any shredded metal or metal foil type metallic or semimetallic rings. Excludes felt items but includes multimaterial items in which one of the materials is felt. For solid (without joints) nonmetallic items with a square or rectangular cross section, see washer (as modified) and gasket. For rubber items specifically designed for weather-proofing doors, windows, chests, and the like see seal, nonmetallic angle; seal, nonmetallic channel; and seal, nonmetallic, special shaped section. For circular (with aperature) nonmetallic items with a solid round cross-section see o-ring. Excludes cup, compression; gasket; washer (as modified); and felt, mechanical, preformed.
Classification: Gaskets,washers & other seals
NSN 6650-01-162-8324
NSN 5920-01-273-8782
NSN 5975-00-841-8774
NSN 5950-01-445-5586
NSN 5920-00-417-4624
NSN 5905-01-079-2341
NSN 5835-01-099-8702
NSN 5950-00-636-3063
NSN 5965-01-433-9864
NSN 6685-01-536-9705
NSN 5999-01-603-8616
NSN 5945-00-728-0293