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 5925-00-254-9416
NSN 5925-01-401-5314
NSN 5855-01-585-3005
NSN 5855-01-634-0259
NSN 5855-01-169-9228
NSN 5985-01-025-0114
NSN 6145-01-054-7463
NSN 5855-01-584-1365
NSN 6150-01-536-4045
NSN 5905-01-006-1761
NSN 5835-01-174-7700
NSN 5915-00-649-8763