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 6685-01-534-7192
NSN 6145-00-248-8965
NSN 6620-01-522-9125
NSN 5960-00-781-0151
NSN 5985-00-277-7371
NSN 5925-01-406-4093
NSN 5835-01-373-9506
NSN 6150-01-372-3320
NSN 6145-00-451-3534
NSN 5990-00-087-6177
NSN 6620-01-487-2509
NSN 6645-00-930-9356