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 5895-01-485-9716
NSN 5945-01-628-2251
NSN 6240-01-401-5340
NSN 7035-00-803-3056
NSN 6620-01-195-0190
NSN 5975-01-225-8050
NSN 6610-00-008-4075
NSN 6110-01-417-3604
NSN 6135-00-182-7008
NSN 5930-01-232-8719
NSN 6645-00-514-4017
NSN 5965-01-202-1007