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 5915-00-350-1798
NSN 5996-00-247-3808
NSN 6685-00-222-8216
NSN 5935-00-353-2147
NSN 5965-01-107-8549
NSN 2925-01-316-7487
NSN 5965-01-315-5764
NSN 5925-00-188-8678
NSN 5930-01-555-7543
NSN 5985-01-189-3439
NSN 5855-00-058-1293
NSN 5985-01-613-8472