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 5905-01-235-8828
NSN 7035-01-528-7870
NSN 6645-01-032-5337
NSN 4140-01-074-6262
NSN 7035-01-232-7263
NSN 5945-01-386-5718
NSN 5925-00-203-1278
NSN 6645-01-471-4960
NSN 5905-00-254-9977
NSN 4140-01-231-9419
NSN 5985-00-245-6548
NSN 7035-00-064-7008