Fitting - Male Connector, 5/16 inch (7.94 mm) tube x 1/4 inch (6.35 mm) NPTF For use with Pneumatic Grease Jockey Systems. Brass Male Connector 5/16 inch (7.94 mm) tube x 1/4 inch (6.35 mm) NPTF Lubriquip part number 435-460-070
Fitting - 3/16 in. (4.8 mm) Tube For Grease Jockey 3/16 in. (4.8 mm) tubing connections Brass Union 3/16 in. (4.8 mm) tube Lubriquip part number 435-470-020
Fitting - 5/16 inch (7.9 mm) Tube Nut and Sleeve For use with Pneumatic Grease Jockey Systems. 5/16 inch (7.9 mm) Tube Nut and Sleeve Lubriquip part number 435-702-503
Hex Shoulder Nipples - Straight, 1/4 in x 1/4 in threads, Steel These quality-produced tube and pipe fittings are designed for use with GRACO® lubricating systems.
1/4 NPT male X 1/4 NPT male
Lubriquip part number 412-230-020 Manzel part number 36X7-2