Fire retardant additive
A deformable material which prevents the passage of matter through the joint formed when two faces are joined. It may be metallic or nonmetallic, lubricated or impregnated, solid or hollow cross section. It may be made to any predetermined dimension and shape. Excludes flat disks, items made of felt material and items having joints. For round metal and plastic items with an aperture and a solid rectangular cross section, see washer, flat; shim; bearing, washer, thrust; and spacer ring. Excludes disk, valve; seal, nonmetallic angle; seal, nonmetallic channel; seal, nonmetallic special shaped section; shielding gasket, electronic; and ring, sealing jar.
NSN 5990-00-850-6603
NSN 5905-01-463-8234
NSN 5975-01-252-8377
NSN 6110-01-233-1532
NSN 5930-01-430-2510
NSN 6240-00-275-1950
NSN 5998-01-502-8423
NSN 5965-01-433-0366
NSN 6320-01-512-2031
NSN 5855-00-138-2386
NSN 5996-00-221-5897
NSN 5930-00-702-3060