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 7035-01-411-6062
NSN 6150-00-241-9676
NSN 6320-01-205-8399
NSN 5975-00-023-1937
NSN 5999-01-498-0542
NSN 2925-01-111-2927
NSN 5835-01-616-6131
NSN 5975-00-615-6934
NSN 6135-01-128-5358
NSN 5935-01-101-0030
NSN 5915-01-508-4199
NSN 6610-01-026-1701