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 5998-00-195-7657
NSN 5965-01-570-4711
NSN 7035-01-256-1440
NSN 6145-00-754-6222
NSN 6620-01-513-8525
NSN 5965-01-618-4939
NSN 6130-01-310-7187
NSN 6135-01-383-1910
NSN 5855-01-397-1105
NSN 5945-00-733-9350
NSN 5925-01-059-0275
NSN 6610-00-152-7216