d0bd6e4e__NQDCs____Fidelity_Investments__401_k_
[Feature] Can receive distributions of any amount and at any time for financial hardship, and, from age 59½ on, without a penalty tax [NQDC] No, but job separation and other events can trigger distributions before that age [401(k)] 
Yes, whether employed or not
Nonqualified Deferred Compensation Plans (NQDCs) - Fidelity Investments