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 2925-01-104-6935
NSN 5999-01-109-3509
NSN 6645-01-618-0007
NSN 6145-01-544-4852
NSN 6650-00-896-6688
NSN 6130-00-706-2530
NSN 6610-00-915-3215
NSN 7035-01-584-4801
NSN 6620-01-367-0844
NSN 6220-00-770-7474
NSN 5835-01-264-8782
NSN 6145-01-534-7589