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 6620-00-244-0125
NSN 6150-01-119-1145
NSN 6110-01-358-5165
NSN 5925-01-494-3272
NSN 6610-01-503-8914
NSN 5910-01-133-1092
NSN 5990-01-633-9503
NSN 6220-01-228-1943
NSN 6150-01-333-3692
NSN 6130-01-036-3327
NSN 6220-00-052-0700
NSN 5925-00-223-1842