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 7035-01-140-5942
NSN 6220-01-462-0236
NSN 5920-00-161-0155
NSN 6650-01-541-3329
NSN 6110-01-154-9172
NSN 5905-01-627-9049
NSN 7035-01-103-6845
NSN 6220-00-330-3717
NSN 5910-01-200-4920
NSN 5998-01-359-8531
NSN 5835-00-378-1429
NSN 6105-01-415-5555