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 6220-01-411-9813
NSN 5975-01-125-5844
NSN 5910-01-172-5659
NSN 5998-01-657-5752
NSN 6145-01-286-9847
NSN 5996-01-507-1515
NSN 2925-01-446-6976
NSN 6110-01-227-0432
NSN 7035-01-423-1755
NSN 6145-01-515-2450
NSN 6320-01-419-1225
NSN 6320-01-512-2031