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 5985-01-343-7545
NSN 6645-01-602-8275
NSN 4140-01-482-2053
NSN 6620-01-576-7723
NSN 7035-01-536-8236
NSN 6685-01-033-1606
NSN 5930-01-283-9427
NSN 5985-01-355-8177
NSN 5910-00-957-1291
NSN 5905-00-418-3562
NSN 5965-00-194-7213
NSN 6145-01-170-3797