NSK Single-Direction Thrust Ball Bearings With Flat Seat , 51414 ,D=70 Type_24^Single-Row  NF-Type it has a scale so

it has a scale so you can read the dimensions directly

Main unit total length: 144mm

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140DLH  1-9/16in (40mm) Wide Solid Brass Body Padlock with 2in (51mm) Shackle

NSK Single-Direction Thrust Ball Bearings With Flat Seat , 51414 ,D=70 Type_24^Single-Row  NF-Type it has a scale soNSK Single Direction Thrust Ball Bearings With Flat Seat , 51414 ,D=70 Bearing Numbers Boundary Dimensions (mm) Basic Load Ratings (kN) Limiting Speeds (min 1) Mass (kg) approx. d D T T3 T4 r min. Ca C0a Grease Oil 51414 70 150 60 2 252 555 1000 1500 5. 05 DESIGN, TYPES, AND FEATURES THRUST BALL BEARINGS Thrust ball bearings are classified into those with flat seats or aligning seats, depending on the shape of the outer ring seat (housing washer).