Rivet Identification Help Please

[N404CX]

SOLD TO A GOOD HOME.

I "inherited" about 24 little boxes of rivets. Each box is labeled similar to this:
AN426AD 4-4 #684
AN426AD 4-6 #686
I'm thinking the "#684" and "#686" might be a clue as to what kit or A/C these rivets are for.
Does anyone recognize this nomenclature?
I'd like them to go to a good home if I could find the appropriate audience. Thanks.

[martymayes]

I "inherited" about 24 little boxes of rivets. Each box is labeled similar to this:
AN426AD 4-4 #684
AN426AD 4-6 #686
I'm thinking the "#684" and "#686" might be a clue as to what kit or A/C these rivets are for.
Does anyone recognize this nomenclature?
I'd like them to go to a good home if I could find the appropriate audience. Thanks.

Same as MS20426.

#4 100* countersink rivet, 2117 alloy (that's the dimple in the head) is applicable to a lot of airplanes. I wouldn't care about a part number some kit company appended. If these are free to good home I'll gladly pay shipping.

[N404CX]

Marty,

I sent you an email, but it had an obsolete address for me. If you replied, please reply again. Email me your address and I will quote you shipping costs. Thanks. -glen