How do i replace a blender part?

I need to replace my Osterizer/Oster blender jug… it’s glass, and i don’t know how to get the model #…. however, it says:P.N. 102272, and on the bottom it says R0321-T1, and LISTED 564A.
PLEASE reply!!!

Go to Oster.com . You will find a source for the parts

VD Ad & Osterizer Blender

Vintage Oster Osterizer Blender Jar Replacement Blade Cutter $9.57

OSTERIZER GALAXIE BLENDER 14 SPEEDS $9.99

OSTERIZER 8 SPEED BLENDER,450 WTS, WHITE, EXCELLENT USED C. $8.99

Vintage Beehive Osterizer Deluxe Blender Chrome Retro Glass Jar Model 403 Nice $22.49

Vintage OSTER CUSTOM model 462 BEEHIVE Osterizer 2 Speed BLENDER Chrome USA MADE $44.95

Osterizer Blender 1975 cookbook / manual $8.50

Vintage Imperial Osterizer 864 Dual Cycle Pulse Mate 16 Green/Chrome $29.99

Vintage Oster/Kitchen Center BLENDER JAR BLADES replacement part osterizer $8.99

Vintage Chrome Osterizer “John Oster” MFG.Model 236 Blender Works Great 2 speed $75.00

OSTERIZER OR OSTER KITCHEN CENTER BLENDER GLASS JAR W/ WHITE LID REPLACEMENT $12.99

Osterizer Icer Attachment Model 435 Green in Original Box – CHEAP START- $2.99

“NEW” Vintage Osterizer 1960’s blender Imperial Oster classic kitchen beautiful $49.78

Advertising Osterizer BLENDER Spin Cooker Recipe Cookbook (1968) 8 Speed $1.99

Advertising Osterizer BLENDER Creative Cookery Recipe Cookbook VG $1.99

Vintage Oster Osterizer Chrome Beehive Blender 438a in GREAT CONDITION! $58.88

Vintage Osterizer Galaxie Cycle Blend 10 Speed Blender Works Glass 4 Cup Jar $29.99

PB: OSTERIZER Blender Cook Book – c1966 $5.00

RUBBER RING GASKET SEAL OSTERIZER OSTER 2 PCS $4.99

OSTERIZER BLENDER SPIN COOKERY COOKBOOK – 1970 $9.97

Classic Oster Blender Icer Attachment 435 Osterizer Avocado CIB Mint $7.99

Vintage Great Working Osterizer Cycle Blender $19.99

Vintage 1975 Osterizer Blender Cookbook CAKES FROSTINGS COOKIES DESSERTS PIES $12.95

Vintage Oster Osterizer Blender Mini Blend Containers $7.99

OSTERIZER blender mini-jars 6 vintage NEW in box w/ lids, directions MINT COND $12.76

OSTERIZER LIQUEFIER BLENDER MINI CONTAINERS 3 NEW $14.00

Crock Pot, Osterizer Blender & Waring Blender Paperback Cookbooks, Lot of 3 $3.95

Osterizer Blender Spin Cookery Cookbook & Instructions $5.99

Oster / Osterizer Blender Jar Gasket $0.99

OSTERIZER BLENDER BASE 10 SPEED MODEL 542526 $39.99

Osterizer liquefier-blender Recipes Instruction guide manual 1980s retro book $5.99

Oster / Osterizer Blender Jar Gasket $0.99

Oster / Osterizer Square Blender Lid $3.75

Osterizer blender cookbook 8 & 10 speed models 1970 $6.99

Vintage Chrome Deco Osterizer Oster Blender Beehive $6.99

White jar lid and cap for Oster & Osterizer blenders. $8.99

Vintage Imperial Osterizer Blender/Avocado Green – Pulse a Matic 10 Speed $5.99

Jar lid and center cap for Oster & Osterizer blenders/Avocado Green $5.25

Blender jar bottom cap for for Oster & Osterizer blenders/ Black $4.35

2-Osterizer Mini-Blend Containers – Blend and store- Glass with a metal lid. $5.00

Osterizer 12 Speed Blender $9.99

Oster Osterizer GALAXIE Blender, 14 Speeds, 5 Cup Glass Jar, # 848-31L, 390 W $8.99

Osterizer Blender Icer Attachment Avocado Crushed Ice Maker $39.46

Vintage Oster 403 OSTERIZER 2 Speed Blender Enameled Bee Hive Art Deco USA $59.99

Osterizer Set of 3 Blender Blade Sealing Ring Gasket $2.56

Osterizer Set of 6 Blender Blade Sealing Ring Gasket $6.00

VTG RETRO MID CENTURY OSTERIZER SOLID STATE GALAXIE 8 SPEED BLENDER CHROME 6 CON $19.99

Osterizer Professional Blender $80.00

Osterizer Spin Cookery Blender Cook Book 1968 $0.99

Vintage Oster Icer Attachment For Osterizer Blender $19.99

1989 OSTERIZER LIQUEFIER-BLENDER RECIPE/INSTRUCTIONS BOOK $1.99