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 4140-01-395-3912
NSN 5975-00-023-8987
NSN 5990-00-814-4659
NSN 6645-00-720-3953
NSN 5950-01-097-5485
NSN 6685-00-575-1708
NSN 6610-01-278-9704
NSN 5965-01-399-8454
NSN 6130-01-273-0944
NSN 6240-01-535-4710
NSN 5965-00-146-8588
NSN 7035-00-295-0451