13-011-956

NAME – NR 8 Defensive

NAME (NATIVE) – PRB 8 Polyvalent Grenade

TYPE – Fragmentation hand grenade

COUNTRY OF ORIGIN – Belgium

DATE OF MANUFACTURE – 1956

LENGTH – 11 cm (4.33 in)

WIDTH (DIAMETER) – 5 cm (1.97 in)

WEIGHT – 0.455 kg (16 oz)

EFFECT – Blast and fragmentation

BURST RADIUS – 12 m (13 yards), individual fragments can remain dangerous out to 40 m (44 yards)

FUSE TYPE – PBR-3 Pull ring/safety lever type

FUSE INITIATION – Safety lever release, impact

FUSE DELAY – 4-5 seconds

FILLER – TNT

FILLER WEIGHT – 0.078 kg (2.75 oz)

FILLER EQUIVALENT TO TNT (R.E.) – 1.0

AVERAGE RANGE – 40 m (44 yards)

COLOR CODE – Olive drab green body and fragmentation coil, Yellow markings

MANUFACTURER – Poudrerie Réunis Belge (PRB), Belgium

STATUS – Out of production

SERVICE – Belgian military and international sales

The fragmentation sleeve is a 286 cm (112 in) long square cross-section steel wire 4mm (0.157 in) thick with a 0.7 mm (0.28 in) deep “V”notch spaced out every 4.5 mm (0.177 in). The wire is formed into as steel coil with the V-notches facing in towards the explosive core. The layout of the fragmentation coil would theoretically result in over 635 4mm (0.157 in) roughly cubical fragments.