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 5915-00-597-2369
NSN 5998-00-221-5760
NSN 5935-01-415-8257
NSN 5950-01-434-2514
NSN 5905-00-987-6840
NSN 6645-01-456-8021
NSN 6220-01-021-0181
NSN 5905-01-474-6969
NSN 5905-01-064-7751
NSN 5895-01-606-3613
NSN 2925-01-614-3634
NSN 6150-01-344-5041