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 5855-01-178-6396
NSN 6220-01-144-4287
NSN 6110-01-571-0374
NSN 6220-01-236-2785
NSN 5905-00-469-5230
NSN 5950-01-091-1338
NSN 5965-01-086-5692
NSN 6685-01-549-0538
NSN 6135-01-290-1594
NSN 5895-01-151-1336
NSN 6135-01-285-1925
NSN 6240-01-025-5847