Anyone Recognise This Wrench?

[MysteriousGT]

It Looks Like HSR Co But Im Not Finding any Company By That Name!

[eddie hudson]

USR? United States Rubber?

[MysteriousGT]

USR? United States Rubber?

It Could Be, But it Looks More Like a H...the 1st and 3rd Letters are Hard to Read

[Branson]

Pentagonal box end suggests something to do with fire equipment.  How about those hoses we used to have in schools and other public buildings back when woolly mammoths stomped throughout the land?

[Papaw]

My firefighter son says it is a hydrant wrench with a gas valve opener.
Brand is M S A- still in business.
No pictures but lots of catalog listings-
 MSA 461828 WRENCH,PD,VALVE
Google it.

[rusty]

> gas valve opener.

Might be more inclined to close them in a fire  myself, just saying.....

In a pinch the wrench might fit lug ear type hose couplings also...

[OilyRascal]

....Might be more inclined to close them in a fire  myself, just saying.....

Might not if it is a bleeder line needing open to reduce pressure when gas is under heat, just saying :-)

[Branson]

> gas valve opener.

In a pinch the wrench might fit lug ear type hose couplings also...

That's exactly what I was thinking.

[MysteriousGT]

Thanks Guys...Im Not able to Find a Single Pic of a MSA Wrench but i do See the Purpose!

[Billman49]

see http://www.scottyfire.com/equipment/tools/super-spanner-hydrant-wrench.htm for a modern five sided wrench.

The 4579 Wrench can also be used to operate standard 1.5" and 1.25" pentagon fire hydrant nuts.

Note:  manhole covers also often have pentagonal headed screws to hold them closed.