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 6645-00-918-3785
NSN 5998-01-210-5744
NSN 6645-01-175-3568
NSN 5965-01-005-0341
NSN 6320-01-411-7469
NSN 5925-01-531-2275
NSN 5945-01-536-2961
NSN 6130-01-184-0753
NSN 6685-00-138-0692
NSN 5920-01-519-7926
NSN 7035-01-181-2705
NSN 2925-01-175-1217