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 5950-01-201-1482
NSN 6620-00-863-4639
NSN 6685-01-081-7522
NSN 6130-00-050-5539
NSN 6620-00-170-5296
NSN 2925-00-596-9775
NSN 6110-01-172-8380
NSN 6610-01-284-0009
NSN 6110-00-890-3042
NSN 5920-01-264-7796
NSN 5960-01-061-0448
NSN 5905-00-786-4262