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 5945-01-522-0008
NSN 5895-01-189-8232
NSN 6610-00-278-7647
NSN 5985-00-535-9943
NSN 5975-01-394-8985
NSN 5895-01-198-7499
NSN 6130-01-196-4545
NSN 5990-01-147-5225
NSN 5835-00-264-0946
NSN 6645-00-754-4108
NSN 5930-01-025-2664
NSN 5915-01-338-5040