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 6685-01-656-7371
NSN 6110-01-512-2008
NSN 7035-01-199-6915
NSN 5950-01-477-2754
NSN 6135-01-485-3450
NSN 7035-01-468-6532
NSN 6620-01-401-5356
NSN 6135-00-942-7970
NSN 6645-01-465-1318
NSN 5920-01-131-2758
NSN 6130-00-061-7486
NSN 5950-01-412-0262