7440 TTL Dual 4 Input NAND Buffer - NOS

9PCS SN7440N TI Dual 4-Input NAND Buffer Positive Logic TTL 5V DIP-14

(PKG of 5) SN74LS26N Quad 2-Input NAND Buffer / Gate, PDIP-14, Motorola

2 pcs Sprague USN7440A TTL DUAL 4-INPUT POSITIVE NAND BUFFER 14 PIN DIP IC

SN74LS133N -Motorola IC - 13-Input NAND, LS-TTL, DIP-16

6pcs Signetics N7440AH Dual 4-Input NAND Buffer Positive Logic TTL 5V DIP-14

(PKG of 5) 7440PC Dual 4-Input NAND Buffer, PDIP-14, Fairchild

3pcs ITT 7440J 14-pin DIP IC Dual 4-Input Positive NAND Buffer