Part Number: 155S4-5D (Coupling) Part Number: 155-S4-6 (Coupling) Part Number: 155-S4-6D (4730-00-613-9751) Part Number: 155-S4-8D (Coupling) Part Number: 155S5-10 (Coupling) Part Number: 155-S5-10D (Coupling half) Part Number: 155S5-12 (Coupling half) Part Number: 155S5-12D (Coupling) Part Number: 155S5-16 (N/a) Part Number: 155S5-16D (Coupling half, quick disconnect) Part Number: 155S5-4 (Coupling) Part Number: 155S5-4D (Coupling half) Part Number: 155S5-5D (Coupling half,self-sealing) Part Number: 155S5-6D (Fitting)