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 5925-01-394-5365
NSN 7035-00-166-0339
NSN 6650-01-165-0438
NSN 5990-01-640-7795
NSN 6150-01-158-9198
NSN 5905-00-900-3606
NSN 6240-00-383-7668
NSN 5925-01-196-5123
NSN 5975-01-584-6472
NSN 5999-00-844-2073
NSN 5925-00-150-1072
NSN 5985-01-236-5727