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 6110-00-910-6537
NSN 5910-01-327-7420
NSN 5855-00-466-2309
NSN 6220-01-583-1567
NSN 5935-00-318-6388
NSN 5905-01-026-1027
NSN 5895-00-918-3836
NSN 5960-01-193-5224
NSN 6240-01-089-6149
NSN 5935-01-278-2594
NSN 5985-01-178-4406
NSN 5925-01-445-0074