DAMPER, FLUE, 4-INCH (FUTURE ACQUISITION FOR THIS ITEM SHOULD REFER TO U.S. ARMY NATICK RESEARCH DEVELOPMENT AND ENGINEERING CENTER DRAWING NUMBER 5-4-356 AND NSN: 4520-00-288-8650.) (NO S/S DOCUMENT) (SUPERSEDING MIL-D-1427B)
4英寸烟道阻尼器(该项目的未来采购应参考美国陆军国家研究开发与工程中心图纸编号5-4-356和NSN:4520-0288-8650 )(无S/S文件)(取代MIL-D-1427B)