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 6135-01-162-0943
NSN 5905-01-575-8539
NSN 5835-01-208-5649
NSN 5910-00-145-9959
NSN 5895-00-596-8678
NSN 6610-00-751-7916
NSN 6240-01-314-0528
NSN 6320-00-456-0836
NSN 6610-00-826-7235
NSN 6110-01-075-2405
NSN 5925-00-089-6131
NSN 5905-00-182-1434