Case Construction
OEM
Part No. 86050277
Lock Nut
445 verified fitments
Select your machine to check fit
Ships nationwideUPS, USPS & freight
30-day returnsNew, unused parts
OEM guaranteedDirect from manufacturer
| Machine | Model | Years / S/N |
|---|---|---|
| Tractor | FARMALL 120A PRO | — |
| Tractor | FARMALL 140A PRO | — |
| Tractor | FARMALL 130A PRO | — |
| Tractor | FARMALL 110A PRO | — |
| Tractor | FARMALL 100A | — |
| Tractor | FARMALL 120A | — |
| Tractor | FARMALL 125A | — |
| Tractor | FARMALL 140A | — |
| Sprayer | TRIDENT 5550 | — |
| Sprayer | PATRIOT 2250 | — |
Enhance the performance of your heavy equipment with the Case Construction Lock Nut #86050277. Designed for durability and reliability, this essential part ensures secure fastening, keeping your machinery running smoothly and efficiently on any job site.
Frequently asked questions
What is the part number?
The manufacturer part number is 86050277.
Is this a genuine OEM part?
Yes. Southeastern Equipment stocks OEM and quality aftermarket parts for heavy equipment. Contact us if you need a specific OEM source or aftermarket option.
Where does this ship from?
Southeastern Equipment Company ships parts nationwide from our US warehouse. Orders placed before 2 PM ET typically ship same day.
WARNING:For California residents — Cancer and Reproductive Harm. www.P65Warnings.ca.gov
- Manufacturer part number
- 86050277
- Internal SKU
- IC:86050277
- Brand
- Case Construction
- Condition
- OEM, new
- Category
- Case Construction
- Weight
- 0.01 lb
Ships nationwide. In-stock parts ordered before 2:30 PM ET ship the same business day. Your exact shipping cost and delivery estimate are calculated at checkout from your ZIP code and the part’s size and weight; oversized and truck-freight items may need extra transit time and freight charges.
Free branch pickup is also available across Ohio, Indiana, Michigan, and Kentucky — just choose it at checkout.
30-day returns. New, unused parts in original packaging may be returned within 30 days. Some items — including electrical, special-order, and direct-from-supplier parts — are non-returnable. See our full return policy.
All 445 fitments
| Machine | Model | Years / S/N |
|---|---|---|
| Tractor | FARMALL 120A PRO | — |
| Tractor | FARMALL 140A PRO | — |
| Tractor | FARMALL 130A PRO | — |
| Tractor | FARMALL 110A PRO | — |
| Tractor | FARMALL 100A | — |
| Tractor | FARMALL 120A | — |
| Tractor | FARMALL 125A | — |
| Tractor | FARMALL 140A | — |
| Sprayer | TRIDENT 5550 | — |
| Sprayer | PATRIOT 2250 | — |
| Sprayer | PATRIOT 350 | 2020 |
| Sprayer | PATRIOT 250 | — |
| Sprayer | PATRIOT 350 | — |
| Baler | SB541 | 2026 |
| Baler | SB531 | 2026 |
| Baler | SB541C | — |
| Baler | SB541 | — |
| Baler | SB531 | — |
| Baler | SB541C | 2026 |
| Combine | 7160 | — |
| Combine | AF4088 | — |
| Combine | AF4099 | — |
| Harvester | AUSTOFT 9900 | — |
| Harvester | A4000 | — |
| Harvester | AUSTOFT 9000 | — |
| Harvester | A4000 C0 | — |
| Tractor | TS6.110 | — |
| Tractor | TS6.120 | — |
| Tractor | TS6.130 | — |
| Tractor | TS6.140 | — |
| Baler | HAYLINER 275 | 2026 |
| Baler | BC5070 | — |
| Baler | HAYLINER 275 PLUS | — |
| Baler | HAYLINER 275 | — |
| Baler | HAYLINER 265 | — |
| Baler | HAYLINER 275 PLUS | 2026 |
| Baler | HAYLINER 265 | 2026 |
| Dozer | 750N LT | — |
| Dozer | 1150M WT | — |
| Dozer | 1150M LT | — |
| Dozer | 2050M LGP PAT | — |
| Dozer | 2050M LGP BD | — |
| Dozer | 650M CRAWLER DOZER | 2023 |
| Dozer | 1650M XLT | — |
| Dozer | 1650M LGP | — |
| Dozer | 850M CRAWLER DOZER | 2023 |
| Dozer | 750M CRAWLER DOZER | 2023 |
| Dozer | 650N LT | — |
| Dozer | 2050M XLT | — |
| Dozer | 2050M LPG PAT | — |
| Dozer | 650N WT | — |
| Dozer | 850N LT | — |
| Dozer | 750N WT | — |
| Loader | TV370B | 2025 |
| Loader | TR340B | 2025 |
| Loader | TR310B | 2025 |
| Loader | TR270B | 2025 |
| Backhoe | 590SN | 2026 |
| Backhoe | 580N | 2019 |
| Backhoe | 580N EP | 2019 |
| Backhoe | 580SN | 2019 |
| Backhoe | 580SN WT | 2019 |
| Backhoe | 590SN | 2019 |
| Backhoe | 580EV | — |
| Backhoe | 580SN | 2026 |
| Backhoe | 580SN WT | 2026 |
| Backhoe | 580EV | 2026 |
| Tractor | 570N EP | 2026 |
| Tractor | 570N EP NC | — |
| Tractor | SL27 TR | — |
| Tractor | SL35 TR | — |
| Tractor | SL50 TR | — |
| Tractor | SL27 | — |
| Tractor | SL22EV | — |
| Tractor | SL23 | — |
| Skid Steer | SR210B | 2025 |
| Skid Steer | SR270B | 2025 |
| Skid Steer | SR175B | 2025 |
| Skid Steer | SV340B | 2025 |
| Skid Steer | SV280B | 2025 |
| Skid Steer | SV185B | — |
| Skid Steer | SR240B | 2025 |
| Dozer | D150B | — |
| Dozer | D140B | — |
| Loader | C345 | 2025 |
| Loader | C327 | 2025 |
| Loader | C337 | 2025 |
| Loader | C330 | 2025 |
| Tractor | ML23 | — |
| Tractor | ML27 T | — |
| Tractor | ML27 | — |
| Tractor | ML22 X | — |
| Tractor | ML50 T | — |
| Tractor | U80D | 2026 |
| Tractor | U80D | — |
| Skid Steer | L321 | 2025 |
| Skid Steer | L320 | 2025 |
| Skid Steer | L334 | 2025 |
| Skid Steer | L328 | 2025 |
| Skid Steer | L318 | 2025 |
| Sprayer | 7370 | — |
| Harvester | AUSTOFT 9990 | — |
| Dozer | 2050M XLT BD | — |
| Skid Steer | SR160B | — |
| Skid Steer | SR240B | — |
| Skid Steer | SR210B | — |
| Loader | C330 | — |
| Skid Steer | L316 | — |
| Skid Steer | L321 | — |
| Sprayer | DEFENSOR 3500 | 2020 |
| Combine | 5150 | — |
| Combine | 6150 | — |
| Combine | 7150 | — |
| Sprayer | DEFENSOR 2500 | — |
| Dozer | 1650M XLT PAT | — |
| Dozer | 1650M LGP PAT | — |
| Dozer | 2050M XLT PAT | — |
| Dozer | 650M LT | — |
| Dozer | 650M WT | — |
| Dozer | 750M WT | — |
| Dozer | 750M LT | — |
| Dozer | 850M WT | — |
| Dozer | 850M LT | — |
| Loader | 21F | — |
| Sprayer | PATRIOT 4430 | — |
| Sprayer | PATRIOT 3340 | — |
| Sprayer | PATRIOT 3240 | — |
| Tractor | TT75 | — |
| Baler | BC5060 | — |
| Sprayer | 7410 | — |
| Sprayer | SP370F GUARDIAN | — |
| Sprayer | SP410F GUARDIAN | — |
| Sprayer | PATRIOT 4440 | — |
| Tractor | 570N EP | — |
| Tractor | U80C | — |
| Skid Steer | L318 | — |
| Tractor | FARMALL 110A | — |
| Harvester | A8010 | 2017 |
| Tractor | FARMALL 130A | — |
| Cotton Picker | CPX420 | — |
| Cotton Picker | CE420 | — |
| Skid Steer | SR175B | — |
| Skid Steer | L320 | — |
| Tractor | TS6.125 | — |
| Harvester | A8810 | 2017 |
| Tractor | 6610S | — |
| Dozer | 1650M XLT BD | — |
| Backhoe | 590SN | 2018 |
| Backhoe | 580N | 2018 |
| Backhoe | 580SN | 2018 |
| Backhoe | 580SN WT | 2018 |
| Baler | SB521 | — |
| Harvester | FP230 | — |
| Backhoe | 580N EP | 2018 |
| Sprayer | PATRIOT | — |
| Sprayer | SP.300F | — |
| Sprayer | SP.345F | — |
| Sprayer | SP.400F | — |
| Backhoe | 580SN | — |
| Sprayer | 6345 | — |
| Harvester | A8000 | — |
| Harvester | A8800 | — |
| Dozer | 2050M LT PAT | — |
| Backhoe | 580N | — |
| Backhoe | 580SN WT | — |
| Backhoe | 590SN | — |
| Cotton Picker | 620 | — |
| Sprayer | SP.295F | — |
| Dozer | 1650L | — |
| Sprayer | SP.300C | — |
| Dozer | 2050M LT BD | — |
| Dozer | D125C LT | — |
| Dozer | 750M WT/LGP | — |
| Dozer | D150C XLT | — |
| Dozer | D180C LT | — |
| Forklift | 586H | — |
| Backhoe | 580N EP | — |
| Forklift | 588H | — |
| Sprayer | SP.260R | — |
| Sprayer | GC300 | — |
| Sprayer | GC300 COMBO | — |
| Dozer | 2050M | — |
| Sprayer | PATRIOT 2230 | — |
| Dozer | 1650M WT/LGP | — |
| Sprayer | SP.240R | — |
| Sprayer | 5300 | — |
| Sprayer | SP.275R | — |
| Sprayer | GC40 | — |
| Baler | MX1012 | — |
| Tractor | 570NXT | — |
| Sprayer | 4430 | — |
| Dozer | D95B | — |
| Sprayer | SP.275F | — |
| Backhoe | 580M | — |
| Sprayer | SP.333F | — |
| Sprayer | N2XP | — |
| Sprayer | SP.365F | — |
| Sprayer | 5365 | — |
| Dozer | D180C XLT | — |
| Sprayer | 3330 | — |
| Sprayer | 3230 | — |
| Baler | X1114 | — |
| Combine | 5130 | — |
| Dozer | 1150K | — |
| Tractor | TS6020 | — |
| Tractor | TS6000 | — |
| Tractor | TS6030 | — |
| Tractor | TT55 | — |
| Dozer | D85B | — |
| Sprayer | SP.240F | — |
| Sprayer | G75 | — |
| Cotton Picker | 635 | — |
| Tractor | STEIGER 385 | — |
| Tractor | T9050 | — |
| Tractor | T9030 | — |
| Harvester | A7700 | — |
| Sprayer | 4420 | — |
| Tractor | T9060 | — |
| Tractor | T9020 | — |
| Tractor | T9040 | — |
| Tractor | TT65 | — |
| Cotton Picker | 625 | — |
| Backhoe | 580SM | — |
| Combine | QRG | — |
| Tractor | QRG | — |
| Tractor | 7610S | — |
| Dozer | DC95 | — |
| Dozer | DC75 | — |
| Sprayer | 5345 | — |
| Baler | 570 | — |
| Sprayer | A40 | — |
| Sprayer | A75 | — |
| Dozer | 550H | — |
| Baler | 575 | — |
| Baler | 565 | — |
| Dozer | 650K | 2006 – 2008 |
| Backhoe | 590SM | — |
| Dozer | D75 | — |
| Combine | 2588 | — |
| Baler | SBX530 | — |
| Combine | 2377 | — |
| Tractor | 2310 | — |
| Dozer | D95 | — |
| Loader | 621D | — |
| Dozer | 850K | 2005 – 2006 |
| Backhoe | 580SM+ | — |
| Harvester | 7000 | — |
| Dozer | D85 | — |
| Loader | 521D | — |
| Dozer | 750K | 2005 – 2006 |
| Tractor | STEIGER STX380 | 2006 |
| Tractor | STEIGER 330 | — |
| Tractor | STEIGER 480 | — |
| Tractor | STEIGER 380 | — |
| Tractor | STEIGER 530 | — |
| Tractor | STEIGER STX430 | 2006 |
| Tractor | 6610 | — |
| Tractor | TJ380 | — |
| Tractor | T9010 | — |
| Tractor | TJ425 | — |
| Loader | 721D | — |
| Combine | 2388 | — |
| Sprayer | SPX4420 | — |
| Cotton Picker | CPX620 | — |
| Dozer | 1150H | — |
| Tractor | STX375 | — |
| Tractor | STEIGER STX375 | 2000 |
| Tractor | TJ375 | — |
| Baler | G6060 | — |
| Cotton Picker | CPX610 | — |
| Tractor | 3010S | — |
| Loader | 821C | — |
| Tractor | TV140 | — |
| Dozer | 850K | 2002 – 2005 |
| Dozer | 750K | 2002 – 2005 |
| Tractor | 4010S | — |
| Tractor | 5610S | — |
| Trencher | 6010 | — |
| Combine | 2366 | — |
| Tractor | 8010 | — |
| Backhoe | 590 | — |
| Harvester | 7700 | — |
| Tractor | 6810S | — |
| Tractor | 5010S | — |
| Cotton Picker | 2555 | — |
| Sprayer | SF550 | — |
| Tractor | CPX420 TURKEY | — |
| Tractor | 8360 | — |
| Tractor | 3430 | — |
| Tractor | 4630 | — |
| Tractor | 7010 | — |
| Tractor | 9282 | — |
| Tractor | 9030E | — |
| Tractor | CS16 | — |
| Tractor | 445C | — |
| Tractor | 345D | — |
| Backhoe | 555D | — |
| Tractor | 9480 | — |
| Tractor | 9280 | — |
| Tractor | 570LXT | — |
| Baler | 8585 | — |
| Baler | 8575 | — |
| Tractor | 9884 | — |
| Backhoe | 580SL | — |
| Trencher | BPG335 | 1997 |
| Trencher | BPDHP335 | — |
| Tractor | STEIGER 9330 | — |
| Tractor | STEIGER 9370 QUADTRAC | — |
| Tractor | 3930 | — |
| Baler | D710 | — |
| Tractor | STEIGER PANTHER | — |
| Trencher | 200TX | — |
| Tractor | 4130 | — |
| Combine | 2166 | — |
| Backhoe | 580L | — |
| Baler | 8570 | — |
| Tractor | 5610 | — |
| Tractor | 7810 | — |
| Tractor | 250C | — |
| Loader | 921 | — |
| Tractor | 345C | — |
| Baler | 568 | — |
| Tractor | 3930N | — |
| Tractor | STEIGER 9250 | — |
| Tractor | STEIGER 9270 | — |
| Combine | 1688 | — |
| Combine | 1666 | — |
| Cotton Picker | 2022 | — |
| Tractor | 3230 | — |
| Dozer | 855E | — |
| Dozer | 855D | — |
| Backhoe | 480F LL | — |
| Tractor | 976V | — |
| Tractor | 846V | — |
| Loader | 621 | — |
| Backhoe | 780D | — |
| Tractor | 5900 | — |
| Backhoe | 755B | — |
| Combine | 1620 | — |
| Combine | 1670 | — |
| Cotton Picker | 2055 | — |
| Tractor | 4610N | — |
| Dozer | 650 | — |
| Trencher | DH4B | — |
| Tractor | 5110 | — |
| Tractor | 7810O | — |
| Baler | 326 | — |
| Tractor | STEIGER 9110 | — |
| Tractor | STEIGER 9170 | — |
| Tractor | 4610 | — |
| Harvester | 386 | — |
| Tractor | 445A | — |
| Tractor | STEIGER ST325 PANTHER | — |
| Tractor | STEIGER ST310 PANTHER | — |
| Tractor | STEIGER ST251 COUGAR | — |
| Baler | 940 | — |
| Excavator | 1080B | — |
| Excavator | 50 | — |
| Backhoe | 580G | — |
| Backhoe | 450 | — |
| Tractor | 836V | — |
| Backhoe | 480D | — |
| Tractor | STEIGER CR-1280 COUGAR | — |
| Tractor | STEIGER COUGAR | — |
| Baler | 425 | — |
| Tractor | 1150V | — |
| Tractor | 540A | — |
| Tractor | 545 | — |
| Tractor | STEIGER CM360 PANTHER | — |
| Tractor | STEIGER CS-360 PANTHER | — |
| Tractor | STEIGER KM-280 COUGAR | — |
| Engine | 4400V | — |
| Dozer | 1150C | — |
| Excavator | 40BLC | — |
| Baler | 1426 | — |
| Tractor | 4890 | — |
| Tractor | 875V | — |
| Tractor | 975V | — |
| Loader | W11 | — |
| Backhoe | 35 | — |
| Tractor | 230A | — |
| Baler | 500 | — |
| Tractor | STEIGER ST470 TIGER | — |
| Tractor | 855V | — |
| Tractor | TW10 | — |
| Tractor | STEIGER PTA251 COUGAR | — |
| Tractor | STEIGER PTA297 PANTHER | — |
| Tractor | STEIGER | — |
| Tractor | 333 | — |
| Tractor | 3900 | — |
| Tractor | 3600NO | — |
| Tractor | 7600 | — |
| Excavator | 35 | — |
| Tractor | 1412 | — |
| Tractor | 7700 | — |
| Tractor | 935V | 1980 |
| Tractor | 5700 | — |
| Excavator | 30YC | — |
| Tractor | 1270 | — |
| Tractor | 1370 | — |
| Tractor | 1570 | — |
| Combine | 815 | — |
| Tractor | 9000 - SERIES | — |
| Tractor | 335 | — |
| Tractor | 2500 | — |
| Tractor | 674 | — |
| Tractor | 500V | — |
| Tractor | 825V | — |
| Tractor | 850V | — |
| Excavator | 35YC | — |
| Tractor | 995 | — |
| Tractor | STEIGER ST220 BEARCAT | — |
| Tractor | STEIGER WILDCAT | — |
| Harvester | 650 | — |
| Tractor | 900V | — |
| Harvester | 96 | — |
| Tractor | 2150 | — |
| Tractor | 2110 | — |
| Tractor | 3055 | — |
| Tractor | 7200 | — |
| Tractor | 7100 | — |
| Tractor | 5100 | — |
| Harvester | 602-SERIES | — |
| Backhoe | 3500 | — |
| Backhoe | 4500 | — |
| Backhoe | 5550-SERIES | — |
| Harvester | 550 | — |
| Tractor | 700V | — |
| Combine | 5000V | — |
| Baler | 277 | — |
| Combine | 403 | — |
| Harvester | 90 | — |
| Mower | 70 | — |
| Harvester | 228 | — |
| Harvester | 227 | — |
| Baler | 506-SERIES | — |
| Tractor | 19-308 | — |
| Tractor | 19-305 | — |
| Baler | 1281 | — |
| Tractor | 723-SERIES | — |
| Baler | 268 | — |
| Baler | 14-80 | — |
| Baler | 14-215 | — |
| Loader | 19-97 | — |
| Baler | 77 | — |