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Comment by barbequeer | Hacker News Reader

> How much does the soap dispenser cost in a 777 bathroom

This might not be a fair comparison, since Boeing also makes the ones for commercial customers, and probably overcharges them also.

> This one from CB2 is $40 and it doesn't conform to FAA rules and it's not MIL-SPEC.

People talk about MIL-SPEC like its some unattainable gold-standard. I can buy a MIL-SPEC rated Thinkpad from Lenovo for less than $600. I mean, sure, it doesn't dispense soap...

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MIL-SPEC is a very broad category. It just means it conforms to a military specification, which can be very simple and easy to meet in some cases. But when the MIL-SEC refers to safety-critical and flight-critical specifications it's a whole other story, and does become an extremely costly and difficult to meet set of standards for good reason.

Compare the cost of a MIL-SPEC ThinkPad with that of an actual flight control computer designed to be an integral part of an aircraft's avionics.

Yes, but this is for soap.

Sure, and there are useful points in the rest of this conversation about whether you need something that special for a soap dispenser and what might be driving up costs, and whether a commercial off the shelf alternative really was an option.

I wasn't trying to cover all that, I was just pointing out that MIL-SPEC is a very wide category and therefore effectively meaningless unless you're pointing out what type of application it is.

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