Part Location Diagram of 703893 Murray Nut, Cntr Lck, 3/8-16
See part D-25 in the diagram
( Grid squares measure 1x1 inch )

Nut, Cntr Lck, 3/8-16 703893

Manufactured by:
Murray
ERP Number:
ERP10000167
Part Number:
703893
Original Equipment Manufacturer ?
In Stock
Delivers in 3-5 Business Days!

Easy 

30 - 60 mins 

(7 rated repairs) ?

Does this part fit my model?

Need help finding your model number?

Product Description

?

This is a genuine OEM sourced replacement part for Lawn and Garden equipment. A lock nut is a type of nut that resists loosening when properly threaded onto a bolt. It will have different applications based on your equipment. Please refer to diagrams for proper use. This item is metal an is sold individually. You would need a wrench to tighten/loosen this nut.

Troubleshooting

This part works with the following brands:
  • Simplicity
  • Murray
  • Briggs and Stratton
  • Snapper
  • Craftsman
  • Kenmore
  • MTD
This part works with the following products:
  • Lawn Tractor
  • Lawn Mower
  • Lawn Tractor Accessories
  • Snow Blower
  • Trimmer
  • Chipper Shredder
  • Tiller
  • Engine
  • Edger
  • Leaf Blower / Vacuum
Part# 703893 replaces these:
  • 1922694SM
  • 1930645
  • 1930645SM
  • 1930651
  • 1960339SM
  • 703893

Customer Part Reviews

?
5.0
Average Rating (out of 5):
★★★★★
★★★★★
(2 Reviews)
Click to filter by ratings:
  • 5 stars
    2
  • 4 stars
    0
  • 3 stars
    0
  • 2 stars
    0
  • 1 star
    0
  • 1
Sort by:  
Sorry, we couldn't find any existing reviews that matched. Try using some different or simpler keywords.

Questions & Answers

?

Our customer Service team is at the ready daily to answer your part and product questions.

We're sorry, but our Q&A experts are temporarily unavailable.
Please check back later if you still haven't found the answer you need.

Ask our Team

We have a dedicated staff with decades of collective experience in helping customers just like you purchase parts to repair their products.

Does this fit my product?

Customer Repair Instructions

All our customer repair instructions are solicited directly from other customers just like you who have purchased and replaced this exact part.

Easy 

30 - 60 mins 

(7 rated repairs) ?
  • 1
Sort by:  
Sorry, we couldn't find any existing installation instruction that matched.

A froze up nut on a bolt, and various missing screws.

Barry from CHATTANOOGA, Tennessee

1 person found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
Less than 15 mins
Tools:
Screw drivers, Socket set
Parts Used:
9X52MA, 703893, 26X270MA, 26X277MA
Just attached the screws and bolts.
Did you find this story helpful?
Thank you for voting!

replaced deck wheels

Ernest from ESTILL, South Carolina

0 of 1 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
15 - 30 mins
Tools:
Socket set, Wrench set
Parts Used:
703893, 703128, 1714760SM, 2108765SM
Just took off old ones and put the new ones on. Simple
Did you find this story helpful?
Thank you for voting!

Pulley for blade drive siezed up

Lee from Lafayette, Louisiana

0 of 1 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
Less than 15 mins
Tools:
Socket set, Wrench set
Parts Used:
9X39MA, 703893
replaced worn and defective parts
Did you find this story helpful?
Thank you for voting!

Nothing ! - got the parts for my winter overhaul yet to be done

Kelvyn from Houston, Texas

0 of 1 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
30 - 60 mins
Tools:
Pliers, Screw drivers, Socket set, Wrench (Adjustable), Wrench set
Great service from you guys, really appreciated it - my old (1991) model Murray mower is still running fine, (one his third mower deck and probably 10th set of blades!)
I needed a left hand headlight lens (part 91319) but so far haven\'t found one - got the right hand lens and all the other parts aok, so looking forward to the winter overhaul in the shed - if anyone has any idea where I can get the lens I need, new or second hand, would be great to hear !

Cheers
Kelvyn

Did you find this story helpful?
Thank you for voting!

Worn.

Laurie from Floresville, Texas

0 of 1 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
15 - 30 mins
Tools:
Socket set
Parts Used:
37X69MA, 23339MA, 703893
Removed the old pulley, replaced the belt and the nut. Mower works better now! This was super easy and really made a difference in how well it was mowing.
Did you find this story helpful?
Thank you for voting!

Idler pulley broke

Kenneth from Stone Ridge, New York

0 of 1 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
15 - 30 mins
Tools:
Socket set, Wrench set
Parts Used:
703893, 690387MA, 690369MA
Removed the deck from the mower
Removed the nut from the top of the pulley
Removed the broken pulley
Removed and replaced the spacer
Installed the new pulley
Tightened the new nut
Installed the deck on the mower
Did you find this story helpful?
Thank you for voting!

Lawn tractor wouldn\'t steer

James from Luverne, Alabama

0 of 1 people found this instruction helpful.
Difficulty Level:
A Bit Difficult
Total Repair Time:
More than 2 hours
Tools:
Socket set, Wrench set
Parts Used:
703893
First I used my garage jack to lift the front of the tractor 23 inches off the ground. I would have used jack stands as well, but found when I did that there was no room for me beneath the tractor. The most obvious reason for the tractor not turning to the left was the triangular shaped gear\'s teeth on that side being so blunted that the pinion gear could not engage them. Fortunately, I had a gear from a previous tractor. To remove and replace the shoulder bolts on the steering plate I had to hold the top of the bolt with a half inch wrench with one hand while removing the center lock nut on the bottom with a 9/16 socket. The center bolt was a bit more tricky as the nut was further back, but I managed. Once I had the new gear bolted in place, I thought that I was finished. That is when i found that the reason that the gear teeth were blunted was because the steering column had worn the base steering plate from 3/4 inch to 1 1/2 inches! so my next job was to remove the steering wheel and the holding pin on the top. Since I ruined the holding pin on removal, I drilled a hole through the steering column and attached the steering wheel to the column with a bolt. Since I also had a spare base steering plate, I removed the old one and installed that after putting a \'touch\' of grease inside. Note: I buy old Murray lawn tractors for their 42 inch mowing decks as they are no longer available for purchase. I often strip parts from them that I might use. I had to purchase the shoulder bolt and its nut from replacement.com because the \'wear\' items are never any good. My total time for the repair was around seven hours, but the tractor steers like new. It is a 1999 Murray Widebody GT with a standard transmission and a 17.5 horsepower Briggs and Stratton replacement engine from surplus center.com that is much more powerful than the original 17.5 HP Tecumseh was. I prefer standard transmissions because they do not wear out. I buy my belts and blades from Sunbelt.com, (I think...it\'s a division of John Deere), because the belts are Kevlar.
Did you find this story helpful?
Thank you for voting!
  • 1

Model Cross Reference

This part works with the following models:
ERP Number: ERP10000167
Manufacturer Part Number: 703893
Brand Model Number Description
Murray 0-22651X9 Lawn Mower - Gas Walk-Behind Mower
Simplicity 1004 Lawn Mower - Simplicity Lawn Mower Model 1004 Parts
Simplicity 1008 Snow Blower - Sno-Away 28 Inch Snow Thrower 8hp
Simplicity 1028 Snow Blower - Snowbuster 28 Inch Snow Thrower 10hp
Craftsman 107250040 Lawn Tractor - Lawn Tractor
Craftsman 107250050 Lawn Tractor - Lawn Tractor
Craftsman 107250060 Lawn Tractor - Lawn Tractor
Craftsman 107250070 Lawn Tractor - Lawn Tractor
Murray 107267860 Lawn Mower - Zts 7500, 21hp Bands W/42-Inch Mower Deck California
Briggs and Stratton 107267860-7800341,ZTS7500 Lawn Tractor Accessories - 107.267860 - 7800341, Zts 7500, 21hp B&s W/42" Mower Deck California (2009)
Craftsman 107277680 Engine - Zero-Turn Rear Engine Rider
Craftsman 107277700 Lawn Tractor - Zero-Turn Rear Engine Rider
Briggs and Stratton 107277700-2277700-ZT7000 Lawn Tractor - 107.277700 - 2277700 - Zt 7000, 18hp Hydro (2004)
Craftsman 10727772 Lawn Mower - Zero-Turn Rear Engine Rider
Craftsman 107277720 Lawn Tractor - Zero-Turn Rear Engine Rider
Briggs and Stratton 107277720-2690428-ZT7000 Lawn Tractor Accessories - 107.277720 - 2690428 - Zt 7000, 20hp Koh W/44" Mower Deck (2005)
Craftsman 107277721 Lawn Mower - Zts7500 Series 44 Inch Zero-Turn Mower 20hp Kohler
Craftsman 10727774 Lawn Mower - Craftsman Lawn Mower Model 107.27774 (10727774, 107 27774) Parts
Craftsman 107277740 Lawn Mower - Zero-Turn Rear Engine Rider
Briggs and Stratton 107277740-2690429-ZT7000 Lawn Tractor Accessories - 107.277740 - 2690429 - Zt 7000, 22hp B&s W/50" Mower Deck (2005)
Craftsman 107277741 Lawn Mower - Zts7500 Series 50 Inch Zero-Turn Mower 22hp Briggs And Stratton
Craftsman 107277860 Lawn Tractor - Zts7500 Series 42 Inch Zero-Turn Mower, 20hp Briggs And Stratton
Briggs and Stratton 107277860-2690639,ZTS7500 Lawn Tractor Accessories - 107.277860 - 2690639, Zts 7500, 20hp B&s W/42" Mower Deck (2007)
Craftsman 10727788 Engine - Zero-Turn Rear Engine Rider
Craftsman 107277880 Lawn Mower - Zero-Turn Rear Engine Rider
Briggs and Stratton 107277880-2690640,ZTS7500 Lawn Tractor Accessories - 107.277880 - 2690640, Zts 7500, 20hp Koh W/44" Mower Deck (2007)
Craftsman 10727790 Engine - Zero-Turn Rear Engine Rider
Craftsman 107277900 Lawn Mower - Zts7500 Series 50 Inch Zero-Turn Mower 24hp Briggs And Stratton
Briggs and Stratton 107277900-2690641,ZTS7500 Lawn Tractor Accessories - 107.277900 - 2690641, Zts 7500, 24hp B&s W/50" Mower Deck (2007)
Briggs and Stratton 107280060-7800753SN Lawn Tractor Accessories - 107.280060 - 7800753sn, 21hp B&s W/42" Mower Deck (2011)