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 6135-01-127-0173
NSN 5920-01-623-1726
NSN 5910-01-163-6365
NSN 5965-01-050-3238
NSN 6240-01-195-4511
NSN 5910-00-617-6804
NSN 5895-01-487-6981
NSN 7035-01-605-6368
NSN 6145-00-960-9233
NSN 5960-01-522-0391
NSN 5925-00-327-1984
NSN 5855-01-230-4665