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 5925-01-083-3042
NSN 6320-01-422-1212
NSN 5905-00-036-6655
NSN 5910-00-594-7986
NSN 6685-01-653-3920
NSN 5985-00-431-4462
NSN 5998-01-258-4821
NSN 5975-00-064-5477
NSN 5895-01-162-8349
NSN 6645-00-133-7823
NSN 5985-01-252-8822
NSN 5935-01-446-0941