Make-up valve is part of a Control Valve.
(1) 5J9098 Spring for make-up valve:
Length under tes tforce … 1.188 in.(30.17 mm)
Test force … .557 ± .053 lb.(2.0 ± 0.2 N)
Free length after test … 1.71 in.(43.43 mm)
Outside diameter … .766 in.(19.45 mm)