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 5960-01-295-8924
NSN 5835-01-242-9806
NSN 6135-01-391-6515
NSN 6110-01-090-0804
NSN 4140-01-054-0289
NSN 5985-01-128-3953
NSN 5835-01-647-4859
NSN 5996-01-308-0865
NSN 5835-00-466-8544
NSN 6135-01-255-9129
NSN 5905-00-025-0656
NSN 5998-01-361-4652