Master Tool Repair

Old Part Numbers: 5140121-073/8" compression inlet x 1/2" male NPT outlet check valve with 1/8" hole and plug. If the small unloader (bleeder) valve on or under your pressure switch leaks constantly...

Old Part Numbers: 60-4-61-4, 058-0017-MAT1/4" compression nut and sleeve. Order two, one for each end of the tube.

Old Part Numbers: 058-0016, 60-8/61-81/2" comp nut & sleeve for 1/2" supply tube. Order two, one for each end of the tube. 

Old Part Numbers: ST072321AV, 058-00123/4" compression nut & sleeve (2 required). For air compressor units made before 05/20/1994.