A circular shaped item with an aperture manufactured to predetermined dimensions, constructed with a rectangular cross section that may be solid, with joint, or in a helical form that facilitates spiral wrap installation. It prevents seal extrusion under pressure and is designed to fit on the down-pressure side of a gland groove with a packing, preformed or o-ring.
Classification: Parts of armored fighting vehicles,motorized, whether or not fitted with weapons
NSN 6135-01-317-6021
NSN 5925-01-143-8385
NSN 2925-01-167-6500
NSN 2925-01-411-4666
NSN 6110-00-757-9595
NSN 5835-01-222-2437
NSN 5835-01-426-6573
NSN 6130-01-559-1062
NSN 4140-01-381-3221
NSN 5999-01-505-3706
NSN 5990-00-313-8688
NSN 5910-01-267-0802