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 6645-00-079-1430
NSN 5905-01-510-6819
NSN 6610-00-098-5362
NSN 5950-00-196-1429
NSN 6110-00-833-7778
NSN 6650-00-216-6365
NSN 6105-01-410-8948
NSN 6645-00-542-1206
NSN 5985-00-831-6425
NSN 5855-01-147-4785
NSN 2925-01-105-3221
NSN 5835-01-142-9233