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 5905-01-077-5747
NSN 5905-01-306-4448
NSN 5905-01-346-7092
NSN 5945-00-661-0506
NSN 6685-01-113-0461
NSN 6320-00-908-6841
NSN 5960-00-859-5059
NSN 7035-01-235-6023
NSN 5985-01-372-1331
NSN 5915-01-232-4788
NSN 6130-01-428-1409
NSN 6110-01-526-3516