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 6110-01-394-8723
NSN 6685-01-512-8831
NSN 5965-00-322-9933
NSN 6145-01-436-4596
NSN 6685-00-203-2389
NSN 5975-00-487-5381
NSN 6110-01-122-8325
NSN 6135-01-210-8715
NSN 6220-00-324-7474
NSN 5985-00-626-4426
NSN 5910-01-488-8933
NSN 5835-01-601-4411