O-4M FUZE
NSN: 1390-50-0012418

The O-4M fuze is intended for use on 82 mm fragmentation mortar bombs fired from the BM82,2B14, and for use on the OG-7 fragmentation grenade for the RPG-7V. It serves to detonate the warhead on impact with the target. The fuze is a nose impact type with two settings – for instantaneous (fragmentation) and inertial (HE) action, semi-boresafe, with distant arming.

Characteristics

Type:	Mechanical
Weight, kg	0,183
Arming distance, m
– with OG-7 grenade	≥3…25
– with mortar bomb	≥3
Safe drop height, m
– in a mortar bomb	2,5
– in a grenade	2
Fixing thread	Sp 36,18×10 turns in 1″
Safe operational temperature range, °C	-40…50