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 6650-01-281-4651
NSN 2925-01-613-8015
NSN 5905-01-019-1418
NSN 5895-00-947-5348
NSN 2925-01-285-7163
NSN 5999-01-495-4041
NSN 6135-01-495-0933
NSN 5998-00-819-5808
NSN 5855-01-501-5176
NSN 6110-01-479-9528
NSN 6130-00-921-4448
NSN 6645-01-163-9930