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 6105-01-097-8743
NSN 7035-00-361-5975
NSN 5895-01-279-5562
NSN 5855-00-481-0019
NSN 5945-00-939-2297
NSN 5990-00-067-6791
NSN 5905-01-492-5861
NSN 6105-01-359-2962
NSN 7035-00-020-2227
NSN 6110-00-225-1726
NSN 5945-01-082-6306
NSN 6610-01-369-7306