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 6220-01-110-7562
NSN 5945-01-297-2455
NSN 5998-01-211-3384
NSN 2925-01-548-6674
NSN 6130-00-781-2897
NSN 5895-00-116-1274
NSN 5910-01-219-0761
NSN 2925-00-617-0826
NSN 5999-01-428-9327
NSN 5999-01-292-7191
NSN 5975-01-536-2679
NSN 5999-00-021-3379