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 5985-00-383-6178
NSN 6130-01-434-7463
NSN 6220-01-592-5226
NSN 5996-01-113-7960
NSN 6650-00-471-1117
NSN 5930-00-426-8196
NSN 5965-00-807-2491
NSN 5999-01-027-0773
NSN 5920-00-856-9663
NSN 6685-01-555-6681
NSN 5920-01-551-1295
NSN 5895-00-548-9329