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 6220-01-543-0311
NSN 5945-01-180-1324
NSN 5895-01-369-5249
NSN 5915-01-382-0517
NSN 6650-00-622-4991
NSN 5950-00-833-0251
NSN 5920-01-482-4343
NSN 6685-01-373-3490
NSN 7035-01-287-9817
NSN 4140-01-551-3589
NSN 6610-01-648-3516
NSN 6645-01-324-0348