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 6685-00-216-6676
NSN 5920-01-323-2209
NSN 5930-01-233-8601
NSN 5905-01-581-8730
NSN 5985-01-011-5704
NSN 5996-01-047-7149
NSN 6620-01-584-6116
NSN 5998-01-555-1115
NSN 5930-01-120-5174
NSN 2925-01-603-2033
NSN 4140-01-452-9428
NSN 6130-01-646-3317