US-39550C | Union-Special locking Stud F/39500
US-39550E | Union-Special Lower Knife holder spring
US-39550F | Union-Special Knife Holder
US-39550K | Union-Special Cover
US-39550M | Union-Special Knife Clamp Spring
US-39550T | Union-Special Lower Knife Holder
US-39550U | Union-Special Lower Knife Holder
US-39550Z | Union-Special Lower Knife Clamp 39550-G 39550L
US-39551A | Union-Special Needle Clamp Washer 39511-A 39511-H
US-39551C | Union-Special 39500 2 needle clamp Stud / 4.5mm (use w/ 14077 )
US-39551D | Union-Special Needle Space Washer use with 39551-C stud
US-39551G | Union-Special Needle Spacer
US-39551J | Union-Special 39500 Single Needle Stud (thick 5.5mm ) ( nut = 14077A)
US-39552AC | Union-Special Needle Driving Arm
US-39552AC/Japan | Union-Special Needle Driving Arm -Made in Japan
US-39552AD | Union-Special Pin Needle Stop
US-39552AG | Union-Special Looper Thread Pull Off
US-39552AJ | Union-Special Needle Driving Arm
US-39552E | Union-Special Fit Arm Rod
US-39552U | Union-Special needle driving bush
US-39555AE | Union-Special Lever Shaft
US-39555AF | Union-Special Support Bracket
US-39555B | Union-Special Foot Lift Spring
US-39555D | Union-Special Lever (foot lift)
US-39555F | Union-Special Foot Lever
US-39556A | Union-Special Bushing
US-39556F | Union-Special presser Arm F/39500
US-39556G | Union-Special Chain Cutting Knife
US-39556H | Union-Special Presser Foot Plate
US-39556K | Union-Special Chain Cutting Knife
US-39556M | Union-Special Chain Cutting Knife Assembly
US-39557 | Union-Special presser Spring (50mm)
US-39557A | Union-Special Presser Spring Plunger
US-39557B | Union-Special Cap Nut
US-39557D | Union-Special Spring
US-39557H | Union-Special Presser Spring (55mm)
US-39563 | Union-Special Thread Guide
US-39563-E | Union-Special EYELET (NLA when soldout)
US-39563AC | Union-Special Needle Thread Cam Pull Off 39563-AW 39563-J sub is 39563-G genuine
US-39563C | Union-Special Float
