OrdnanceType 99 No. 80 Mk 5Type 99 No. 80 Mk 5Type 99 No. 80 Mk 5KindBombMass744 kgService193119321933193419351936193719381939194019411942194319441945Japan · Pacific≈ 7 Dec 1941 – 26 Oct 1942Aircraft 1193119321933193419351936193719381939194019411942194319441945B5N27 Dec 1941 – 18 Aug 1945≈ Jan 1942 – 9 Apr 1942