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 6110-01-036-4421
NSN 5965-00-275-0491
NSN 5950-01-264-7255
NSN 6685-00-563-7475
NSN 5925-01-203-6824
NSN 6150-01-511-3993
NSN 5905-00-294-9445
NSN 6145-01-217-9228
NSN 5950-01-025-1649
NSN 5998-01-330-0722
NSN 6220-01-610-6557
NSN 6645-00-616-1289