Defence – Damage Control

Splinter Box, EMMS Clamp and Wooden Pegs

‘Splinter Boxes’ are a heavy duty patch used to cover a hole in a vessel, made from either fibre glass or steel. They are idea for use in either an emergency or accidental damage situation.


GRP & Splinter BoxGRP Splinter Box
Made from fibre glass these units are both strong and light weight, these are available in 3 sizes.

Small – NSN 99-339-4401 – 300mm Diameter
Medium – NSN 99-215-4579 – 460mm Diameter
Large – NSN 99-361-7439 – 600mm Diameter

Steel Splinter Box
These are available in four sizes.

300mm x 300mm square NSN 99-463-3937
350mm x 350mm square NSN 99-463-3938
400mm x 400mm square NSN 99-463-3939
450mm x 450mm square NSN 99-780-4456


EMMS Clamp Swivel

Swivel Clamp

EMMS Clamps

EMMS clamps are available in both a static and swivel variety.

The Standard EMMS clamp is also available in two sizes
190mm x 403mm NSN 99-215-8173
140mm x 353mm NSN 99-782-8172

The universal swivel EMMS clamp
140mm x 246mm NSN 99-904-2040



splinter box EMMS clamp


EMMS Clamps and a GRP Splinter Boxes

used in conjunction with each other







Taper Wooden Plugs

Plug, wood, conical 1” x  ½” x 3”  NSN 5510-21-596-1308
Plug, wood, conical 2” x 1” x 6”    NSN 5510-21-596-1317
Plug, wood, conical 3” x 2” x 6”    NSN 5510-21-596-1318
Plug, wood, conical 4” x 4” x 8”    NSN 5510-21-596-1319
Plug, wood, conical 6” x 4” x 12”  NSN 5510-21-596-1320

Plug, wood, conical 5″ x 1″ x 10″ NSN 00-280-8966
Plug, wood, conical 2″ x 0″ x 4″ NSN 00-260-8958
Plug, wood, conical 7″ x 3″ x 10″ NSN 000-260-8969
Plug, wood, conical 8″ x 4″ x 10″ NSN 00-260-8973
Plug, wood, conical 10″ x 7″ x 12″ NSN 00-260-8949


As with many of our products, though these are supplied to the defence sector we also supply them to the civilian shipping market, in the past we have shipped these units to America, France and Holland