Part Number: 1421PCB1-100 (Call for availability and pricin) Part Number: 1421PCB1-8 (Call for availability and pricin) Part Number: 1421PCB2-100 (Call for availability and pricin) Part Number: 1421PCB2-8 (Pcb standoff .5 8/pk) Part Number: 1421PH-ND (No description) Part Number: 1421PM (Hardware) Part Number: 1421R149 (Locking ring) Part Number: 1421R1A (No description) Part Number: 1421RC24 (Call for availability and pricin) Part Number: 1421REF (No description) Part Number: 14-21RP1 (Shell) Part Number: 1421RRC (Msop8) Part Number: 1421S (Hammond manufacturing) Part Number: 1421S015 (Washer)