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 6645-01-329-3399
NSN 5835-01-024-9249
NSN 6320-01-246-4390
NSN 5975-01-323-6361
NSN 7035-01-525-7673
NSN 6320-01-443-8676
NSN 4140-01-201-4359
NSN 5990-01-040-6358
NSN 5996-01-024-7972
NSN 4140-01-419-8592
NSN 7035-00-312-3055
NSN 5855-01-535-8881