All fuzes and energetic components
The mortar fuze line items run across the UT-M68, UT-M88, UT M18, PD UTU-M93, UTU M93P1, TP-M67 P1, ETSQ M365 and MBU M18 designations. UT-M68 P1 is a superquick impact fuze, while UT-M68 P2 and UT-M88P1 are mechanical point-detonating impact fuzes with superquick action; PD UTU-M93 P1 and PD UTU-M93N add a superquick or delay mode chosen by a mode selector, and UTU M93P1 records superquick and delay action; TP-M67 P1 is a zirconium-based pyrotechnic time fuze offered in 60 mm and 81/82 mm versions; ETSQ M365 is an electronic time fuze; MBU M18 is a proximity fuze; and UT M18 carries the mechanical interfaces the source records between shell and container.
Zirconium-based pyrotechnic time fuze for 60 mm illuminating and long-smoking mortar shells, settable from 5 to 35 s.
Zirconium-based pyrotechnic time fuze for 81/82 mm illuminating and long-smoking mortar shells, settable from 5 to 38 s.
Microprocessor-based electronic time fuze for illuminating and high-smoke mortar shells of 60, 81/82 and 120 mm, set without activating the battery.
Battery-powered mechanical-electronic mortar proximity fuze with point-detonating and 2 to 5 m burst-height proximity modes, set contactlessly.
Mechanical point-detonating mortar fuze with superquick or delay action and metric M43 x 2 connecting thread, 12.5 g detonator charge.
Mechanical point-detonating mortar fuze with selectable superquick or delay action, interrupted explosive train and arming status indicator.
Superquick impact mortar fuze with interrupted explosive train and removable transport safety element, permanently screwed to the shell.
Mechanical point-detonating superquick mortar fuze, 175 g, with interrupted explosive train and 8 m muzzle safety.
Mechanical point-detonating superquick mortar fuze for HE and smoke shells, with hard transport safety element and status indicator.
Mechanical point-detonating mortar fuze with superquick and delay action, 13.2 g detonator charge and 1 bar moisture proofness.
A mechanical point-detonating fuze with safety and arming device that lets standard 60 mm, 81/82 mm and 120 mm HE mortar shells be dropped from an aircraft-mounted carrier, providing superquick fragmentation action and the mechanical interfaces between shell and container.
A mortar fuze annex lists the fuze type, the action modes, the shells named as compatible, the safety standard, the arming acceleration window and the connecting thread. These records follow that pattern: point-detonating, mechanical or pyrotechnic time, electronic time or proximity for the type; superquick, delay, timed or proximity for the mode; MIL-STD-1316B, STANAG 4157 or MIL-STD-331C where a standard is cited; and arming bands such as 400 g to 13000 g.
UT-M68 and UT-M88 mark the superquick impact fuzes; PD UTU-M93 the point-detonating fuzes whose mode selector chooses superquick or a delay of 30 ms to 50 ms, with UTU M93P1 recording superquick and delay action over the same 30 ms to 50 ms delay; TP-M67 P1 the pyrotechnic time fuzes in a 60 mm and an 81/82 mm version; ETSQ M365 the microprocessor time fuze; MBU M18 the battery-powered proximity fuze. What varies is the mass, the connecting thread, the stated muzzle safety distance and the temperature range, which reaches -54 to +71 deg C on several sheets.
TP-M67 P1 records 5 to 35 s in the 60 mm version and 5 to 38 s in the 81/82 mm version. ETSQ M365 records 5 to 99.9 s in steps of 0.1 s, set by an external setter without activating the fuze battery. MBU M18 records a point-detonating mode and a proximity action of 2 m to 5 m.
Recorded masses run from 175 g for UT-M68 P2 to 580 g for the 81/82 mm TP-M67 P1, with 0.224 kg for UT M18. Threads named include 1.5 in - 12 UNF-1A, M43 x 2 mm, M 54 x 1.5 mm, M 72 x 1.5 mm and W 36.18 x 1 in / 10. UT-M68 P1 is listed without a mass figure.
