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 5855-01-533-0996
NSN 6685-01-401-5360
NSN 5895-01-100-3759
NSN 6240-01-415-6004
NSN 6645-01-154-3080
NSN 5855-00-688-9954
NSN 5975-01-462-4941
NSN 5855-01-448-0695
NSN 5905-01-316-8267
NSN 5915-00-342-8146
NSN 6220-01-423-8319
NSN 6240-01-406-2317