Mptfe polytetrafluoroethylene.
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 6620-01-010-0518
NSN 5999-01-141-6859
NSN 5935-01-378-7305
NSN 5975-01-422-2033
NSN 4140-01-328-8516
NSN 6110-01-004-9870
NSN 5905-01-361-8825
NSN 5999-01-346-5515
NSN 6135-00-284-1406
NSN 5925-01-476-8913
NSN 5895-00-707-6663
NSN 5920-00-762-3348