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 6685-00-451-6941
NSN 5905-01-577-0026
NSN 6685-01-106-0049
NSN 5925-01-381-2528
NSN 6240-00-959-7025
NSN 5915-00-356-5558
NSN 6685-00-472-8171
NSN 6240-01-176-4359
NSN 5895-01-484-5228
NSN 5910-00-186-8488
NSN 5935-00-999-6593
NSN 5920-01-081-1267