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 5990-01-207-6524
NSN 5855-01-295-2313
NSN 5835-00-289-9080
NSN 6685-01-068-1600
NSN 5945-01-407-9622
NSN 6685-00-204-6037
NSN 6220-01-324-4571
NSN 7035-01-254-3606
NSN 6645-01-004-0803
NSN 5930-01-438-3882
NSN 6685-01-528-9453
NSN 5930-01-436-9003