6600 Series Couplers (hydraulic) up to 5000 psi, connect with ISO 7241 Series A, 6600 Series Nipples. Parker®'s 6600 Series have double shut-off poppet valves and are interchangeable with other quick disconnects complying with ISO 7241 Series A.
Parker® Male Nipple, Series: 6600, Fitting Type: Nipple, Connection Size 1: 3/8 in, Connection Type 1: Quick Disconnect, Connection Size 2: 3/8 in, Connection Type 2: FNPTF, Connection Type: Quick-Disconnect|FNPT, Steel, Material Construction: Steel, Zinc Clear Trivalent Chromate, 3/8-18 Thread, 0.88 in Hex, 1.63 in L x 1.01 in Dia, Maximum Operating Pressure: 4000 psi, -40 to 250 deg F Operating
| Fitting Type | : | Nipple |
| Connection Size 2 | : | 3/8 in |
| Hex Size | : | 0.88 in |
| Material | : | Steel |
| Finish | : | Zinc Clear Trivalent Chromate |
| Dimensions | : | 1.63 in L x 1.01 in Dia |
| Series | : | 6600 Series |
| Connection Type 1 | : | Quick Disconnect |
| Connection Size 1 | : | 3/8 in |
| Connection Type 2 | : | FNPTF |