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 5925-01-335-6463
NSN 5910-01-244-3997
NSN 5985-01-595-3917
NSN 4140-01-049-1375
NSN 6105-01-178-8888
NSN 6320-00-405-2348
NSN 6135-01-132-6310
NSN 6320-01-371-1603
NSN 6145-01-517-0333
NSN 5910-01-582-1356
NSN 5920-01-455-5524
NSN 6645-01-495-0939