5342-01-089-7852 (12283790)
NSN 5342-01-089-7852 (NIIN 01-089-7852) is a protection bellows in Federal Supply Class 5342, Hardware, Weapon System — a nonmetallic, accordian shaped protective covering designed to flex due to relative motion between parts to which its opposite ends are attached. Manufacturer part number 12283790 (U S Army Tank Automotive Command, CAGE 19207); also referenced as XM67590 (General Dynamics Land Systems Inc.).
Key specs: 50 nominal durometer hardness; full characteristics table below. NIIN assigned February 1980; DEMIL A (none required); unit of issue EA (each), $4.46 gov standard price; export Schedule B 8487.90.0080; ships at 0.1 lb / 0.013 cu ft.