My 821RT Model Overview from Home Depot Appliance Parts

SPACER, 9/16 x 1

Part #: HD8889111

Manufacturer Part #: 1719683SM

Lawn Mower Washer0.312(0.33idx1

Part #: HD9269442

Manufacturer Part #: 1960044SM

Washer-0.312(0.33idx1

Washer, 7/16 Split Lock

Part #: HD10000238

Manufacturer Part #: 704007

Bolt 3/8-16 x 1-3/4"

Part #: HD9961870

Manufacturer Part #: 5025013X14SM

Bolt 3/8-16 x 1-3/4

Lawn Mower Locknut Flange

Part #: HD10000267

Manufacturer Part #: 704067

Nut hex flng 5/16-18

Snow Blower Keps Lock Nut

Part #: HD10000179

Manufacturer Part #: 703914

This is an authentic Murray replacement part that has been sourced from the original manufacturer to be used with lawn tractors, snowthrowers, utility carts, and grass baggers. The special nut is used...

Washer, 3/8

Part #: HD16404073

Manufacturer Part #: 703878

It is an authentic item which is supplied directly from the original equipment manufacturer for use with Snapper and Simplicity lawn and garden equipment. The washer is generally utilized to provide a...

Hex Nut

Part #: HD9999872

Manufacturer Part #: 703577

This authentic manufacturer-sourced component is specially designed for Murray, Snapper and Simplicity lawn mowers. It is an identical replacement for a missing or a damaged hex nut that was installed...