NA16 Brass key blanks. Same as ILCO 1646. Fits some newer mailbox locks.
Fits:
Auth Florence
CBU
CompX
National Lock Company, NCL
Salsbury
USPS
Vital
Mailbox & Post Office Box
Various mailbox locks using key codes between:
1000PS-1999PS
3000PS-3999PS
Same as:
Ilco 1646
Jet D4300
JMA NTC-14D
Original D4300