Early bakelite cap for German field bottle M31/40
Early bakelite cap for German field bottle M31/40
Price per cap: without gasket and peg. All add-ons are sold separately in our store.
A replica cap for the German M31 field bottle, made from Bakelite.
This cap has the same basic design as the earlier aluminum caps. In 1940, the German army moved to a similar cap made from a cheaper material.
How to install the peg in the cap: the peg can be fixed with epoxy resin, which is a reliable and safe method and helps keep the cap tight. Compatible pegs and red rubber gaskets are sold separately.
Copy vs. original
These photos show how closely our reproduction matches an original cap. The two are virtually impossible to distinguish without close examination. Our reproduction is cast from a mold taken directly from an original cap and made from the same material, Bakelite, rather than a modern plastic substitute.

Side view: our copy on the left, the original on the right.

Top view: our copy above, the original below.

Inside view: the original above, our copy below.
Product features
Product features
Early-pattern Bakelite reproduction cap for the German M31/40 field bottle.
Mold taken directly from an original cap.
Made from Bakelite, matching the original material.
Cap only: sealing gasket and retaining peg are not included.
Merchandising tips
Merchandising tips
Use for a compatible canteen repair, a replacement for a damaged cap or a self-built reproduction field-bottle and strap set. Add the correct gasket, long peg, aluminum grommet and retaining strap separately, and check the thread and dimensions against your bottle.
Historical reference
Historical reference
Wartime German M31 field bottles are documented with Bakelite screw caps and strap retainers. These caps formed part of a complete carrying assembly that also held the cover and drinking cup.
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