US-51434(A) | Union-Special Feed Bar
US-51449 | Union-Special Lower Knife
US-51449(tt) | Union-Special Knife (lower tungsten) LK-517 use with 51470 or Porter 6Z0150
US-51454A | Union-Special guide Block
US-51454B | Union-Special Needle Bar Connection or Renown 10049
US-51457A | Union-Special Cast Off Plate Support
US-51458 | Union-Special Thread Guide
US-51458A | Union-Special Thread Guide same item 56458-A
US-51459A | Union-Special Thread Guide
US-51470 | Union-Special Knife (top) use with 51449 screw is 22729 6006077
US-51475A | Union-Special Bolelite Roller
US-51476-A | Union-Special Bolelite Roller
US-51492 | Union-Special Tension Post
US-51493-BG | Union-Special Felt Gasket
US-51493BF | Union-Special Oil Filter Rod
US-51493BH | Union-Special Filter Cap Assembly
US-51493BJ | Union-Special Washer Sponge Rubber
US-51493BP | Union-Special Oil Pump Gear see Renown 10073
US-51493BQ | Union-Special Oil Pump Gear Renown no 10072
US-51493BR | Union-Special Oil Pump Gear 51493-E
US-51499 | Union-Special Knife Lower
US-51505-18 | Union-Special Feed Dog
US-51505BR16 | Union-Special Feed Dog
US-51505BR18 | Union-Special Feed Dog
US-51505D16 | Union-Special Feed Dog
US-51505G1 | Union-Special Feed Dog
US-51508-24 | Union-Special Looper
US-51508C1 | Union-Special front Looper use with 51809-C
US-51508G1 | Union-Special Looper
US-51508L48 | Union-Special Looper
US-51509C | Union-Special back Looper Genuine
US-51509L | Union-Special Looper was K-59799
US-51520-16 | Union-Special Presser Foot
US-51520-18 | Union-Special Presser Foot
US-51524-16 | Union-Special Throat Plate use with 51505-18
US-51524-18 | Union-Special Throat Plate
US-51524G1 | Union-Special Throat Plate
US-51525 | Union-Special Needle Guard
US-51530-A | Union-Special SHANK (NLA WHEN SOLD OUT)
US-51557 | Union-Special Support was 52857-A
