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 5985-01-326-8565
NSN 4140-01-173-9513
NSN 5950-01-287-8256
NSN 6135-00-919-1117
NSN 5945-01-025-1163
NSN 5895-01-334-8368
NSN 5935-00-287-9898
NSN 6105-00-664-1292
NSN 6685-00-185-8517
NSN 5905-01-514-3260
NSN 6145-00-909-0614
NSN 6650-01-014-9299