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 2925-01-236-3547
NSN 5945-01-074-8596
NSN 5985-01-074-3604
NSN 5990-01-538-0923
NSN 5950-01-264-1328
NSN 5960-01-048-0975
NSN 6650-00-658-9627
NSN 5945-00-131-7645
NSN 5965-01-362-5624
NSN 6650-01-562-4133
NSN 5985-01-656-3590
NSN 6650-01-331-5243