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 6685-01-649-5657
NSN 6145-01-005-1374
NSN 5910-01-352-4794
NSN 7035-00-535-8109
NSN 6685-00-663-9000
NSN 5930-01-301-4865
NSN 5910-01-429-8685
NSN 6145-01-026-5519
NSN 6685-01-507-1562
NSN 6240-01-229-5712
NSN 6150-00-919-7265
NSN 5965-00-028-9646