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 5905-01-096-8801
NSN 6650-00-792-8577
NSN 5975-00-284-7615
NSN 6145-01-406-3650
NSN 6145-01-401-3713
NSN 5835-01-484-4698
NSN 5895-01-332-8752
NSN 6105-01-548-8436
NSN 5835-01-580-0446
NSN 6685-01-495-4385
NSN 5945-01-254-6629
NSN 5999-01-143-3633