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 2925-01-517-4037
NSN 6240-01-070-2483
NSN 6620-01-498-4780
NSN 5975-01-056-9142
NSN 5999-01-499-6278
NSN 5920-01-102-6728
NSN 5985-01-291-5454
NSN 5975-00-142-2450
NSN 6110-01-554-0825
NSN 5835-01-259-0859
NSN 6685-00-923-6383
NSN 7035-01-656-7120