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 6685-00-451-2014
NSN 6620-00-170-5296
NSN 6240-01-322-5521
NSN 6645-00-017-8252
NSN 6150-01-301-4658
NSN 5935-01-396-6220
NSN 6645-01-164-7650
NSN 7035-00-997-6212
NSN 6145-00-943-0729
NSN 6105-01-313-7100
NSN 5925-01-441-9248
NSN 5915-01-017-3017