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 5915-00-203-2369
NSN 6645-01-605-4351
NSN 5975-01-519-8326
NSN 5895-00-891-9697
NSN 5905-01-435-5168
NSN 5935-01-034-5138
NSN 6135-01-601-3163
NSN 5996-00-278-5193
NSN 6110-00-170-6520
NSN 5835-01-266-4382
NSN 6650-00-369-4429
NSN 6685-00-421-2100