Has 2 x r0.25 on the side with the holes
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 5855-01-103-8650
NSN 5990-01-393-4808
NSN 5910-01-432-1158
NSN 6150-01-209-6220
NSN 5996-01-560-3172
NSN 5996-00-931-2500
NSN 4140-00-817-6009
NSN 5915-01-120-5165
NSN 6150-00-576-3964
NSN 6145-00-184-1110
NSN 5998-01-094-4933
NSN 7035-01-253-2868