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 6110-01-201-6360
NSN 6130-00-643-4894
NSN 7035-01-514-2221
NSN 5985-01-421-3495
NSN 5998-00-444-0074
NSN 5905-00-655-9282
NSN 5935-01-403-2844
NSN 2925-01-118-5191
NSN 6240-00-361-1421
NSN 5910-01-222-3588
NSN 5945-01-655-4343
NSN 6610-01-059-5271