0159333018, 01593-33018 NUT KOMATSU

When buyers search for 0159333018, 01593-33018 NUT KOMATSU, they are usually looking for a slotted lock nut used in the front axle area of Komatsu graders and wheel stabilizers, not a general-purpose hex nut. Public parts catalogs identify 01593-33018 as a Nut, Slotted and list a reference weight of 0.122 kg. The same public machinery lists connect it with a broad range of grader and stabilizer applications, including models such as GD505A-3, GD505A-3A, GD521A-1E, GD535-5, GD555-5, GD605A-5, GD605A-5S, GD655-5, GD655-6, GD655-7, GD675-5, GD675-6, GD675-7E0, GD705-5, GD755-5R, GD825A-2, GD825A-2E0, GH320-3, and GS360-2.

From the uploaded images, this part clearly has the geometry of a heavy-duty castellated or slotted retaining nut. It has a hex outer body for wrenching, internal threads, and multiple locking slots at the crown for use with a cotter pin. That design is typical where Komatsu needs a nut that can be tightened to a specific preload and then mechanically locked in position instead of relying only on friction. The images therefore support the public catalog description that this is a slotted fastening part for a load-sensitive assembly.

For a product page, that distinction matters. A buyer typing 01593-33018 is usually trying to match a known front-axle service part on a machine already in repair. They are not casually browsing hardware. They want confirmation of the part style, the machine family, the assembly location, and the supply source. That is why a strong page for 0159333018, 01593-33018 NUT KOMATSU should explain the lock-nut function, show the front-axle context, and make it clear that 3GEN Export supplies it as an OEM supplier with worldwide delivery in 5 working days.

Product Overview

0159333018, 01593-33018 NUT KOMATSU is best understood as a slotted retaining nut for front axle and axle-support assemblies on Komatsu graders and related machines. Public parts references repeatedly place this number in FRONT AXLE, FRONT AXLE (AXLE SUPPORT), FRONT AXLE, PIN, FRONT AXLE, HOUSING, and FRONT AXLE, RELATED PARTS pages rather than in engine, transmission, or bodywork sections. That repeated placement is important because it shows the part is tied to steering- and axle-related load paths, not to a low-stress general bracket.

A second important clue comes from the neighboring parts listed around it in public axle pages. In the GD535-5 front axle references, 01593-33018 sits directly with 04050-16045 PIN, COTTER, 01643-33080 WASHER, bushings, dust seals, and the leaning rod. In GD675-5 front axle support pages, the same nut again appears next to the same cotter pin and washer sequence. That catalog pattern strongly suggests that 0159333018, 01593-33018 NUT KOMATSU is a locking nut used to secure an axle pin or support stack where cotter-pin retention is required. That last point is an engineering inference, but it is grounded in the public parts-book context.

Because of that application, this is not the kind of part workshops should replace with a visually similar nut from general stock. The slot spacing, thread fit, overall thickness, and locking arrangement matter in assemblies that carry axle load, steering movement, and vibration. Public machine lists also show this part across many grader generations, which makes exact number matching even more valuable for dealers and repair teams.

What 0159333018, 01593-33018 NUT KOMATSU Does

The main role of 0159333018, 01593-33018 NUT KOMATSU is to provide threaded retention plus positive mechanical locking in the front axle assembly. A standard hex nut can loosen under shock, vibration, or repeated steering load if not backed up by another locking method. A slotted nut solves that by allowing the technician to align the slot with the drilled hole in the mating pin or spindle and then secure the joint with a cotter pin. The public Komatsu parts references repeatedly pair 01593-33018 with 04050-16045 PIN, COTTER, which strongly supports exactly that function.

In practical machine use, that matters because the front axle area is one of the most stressed parts of a grader. It handles shock from uneven ground, steering inputs, support movement, and repeated dynamic load. A nut in this zone is not just a simple threaded fastener. It helps preserve the position of the associated pin, rod, or housing stack and keeps the assembly from backing off during service. That is why public parts-book pages place 0159333018, 01593-33018 NUT KOMATSUin axle support, axle pin, and related front-end subgroups rather than in cosmetic or low-load assemblies.

Another useful clue comes from the specific pages where the nut appears. In some applications it is shown in front axle, axle support groups, while in others it appears in front axle, pin or front axle, housing groups. That tells us the same nut specification is reused across several connection points in the front-end architecture, probably because Komatsu standardized this slotted lock-nut size across more than one related assembly. That reuse is common in industrial machine design and helps explain the wide compatibility list shown in the public machinery pages.

Visual and Engineering Features

Slotted lock crown

The top face of the nut has clearly machined locking slots. That is the defining feature of 0159333018, 01593-33018 NUT KOMATSU and the reason it should be described as a slotted or castellated retaining nut. These slots allow the installer to align the nut with a cotter pin after final tightening, which is especially useful in front axle joints where movement and vibration are constant.

Hex outer body

The outer profile is a full heavy hex, giving enough wrench surface for controlled tightening. In axle and support assemblies, that matters because the nut often needs to be tightened firmly and then indexed to the cotter-pin position without damaging the corners.

Deep internal thread

The visible threaded bore shows this is not a thin jam nut. It has enough thread depth to provide strong engagement on the mating shaft or pin. That matches its use in high-load front axle assemblies where retention security matters.

Thick one-piece body

The nut appears robust, with a full-section body and substantial wall thickness. That is what buyers expect in a load-bearing Komatsu fastener used in the front end. It is designed to do more than simply clamp two thin parts together. It is designed to stay locked in place in a structural connection.

Protective finish

The yellow-gold surface suggests a plated corrosion-protection finish suitable for exposed service conditions. In front axle areas, that is practical because road debris, moisture, grease, and dust are common.

These visible features align well with the public parts-book evidence showing a slotted nut paired with a cotter pin in axle support assemblies.

Technical Identity and Assembly Context

Public parts catalogs provide several strong technical anchors for 0159333018, 01593-33018 NUT KOMATSU. First, the number is cataloged as Nut, Slotted rather than a plain nut. Second, the same catalogs show a repeated reference weight of 0.122 kg. Third, it is repeatedly used in quantity 2 on many front axle pages, which means it is normally installed as a paired locking hardware item in those assemblies.

The surrounding parts also help define the role of the part more precisely. In the GD535-5 axle-support references, the nut is followed by pin cotter, washer, bushing, bushing, seal dust, and leaning rod. In GD675-5 axle-support references, it again appears beside the cotter pin and washer sequence. In GD755-5R front axle related-parts pages, it is likewise paired with a cotter pin. That repetition matters because it confirms this is not random hardware; it is locking hardware for a pinned front-end joint.

In commercial terms, that makes 0159333018, 01593-33018 NUT KOMATSU a high-importance service fastener. Fasteners are often overlooked on product pages, but in heavy equipment the correct lock nut can be just as critical as the pin or bushing it secures. A wrong thread, wrong height, or wrong locking profile can delay assembly or compromise retention. That is exactly why buyers search this part by number instead of ordering a generic “M30 nut.”

KOMATSU Models Publicly Linked to 01593-33018

Public machinery lists for 0159333018, 01593-33018 NUT KOMATSU are broad and show this part used across multiple Komatsu grader families and related equipment. The public 777Parts machinery list includes GD505A-3, GD505A-3A, GD521A-1E, GD535-5, GD555-3, GD555-3C, GD555-5, GD605A-5, GD605A-5S, GD655-3E0, GD655-5, GD655-6, GD655-7, GD675-3A, GD675-3E0, GD675-5, GD675-6, GD675-7E0, GD705-5, GD755-5R, GD825A-2, GD825A-2E0, GH320-3, and GS360-2.

The public list also shows several serial-sensitive application pages, which is important for anyone publishing or selling the part. Examples include GD605A-5 S/N 1001-UP, GD605A-5S S/N 4001-UP, GD535-5 S/N 1001-UP, GD555-5 S/N 55001-UP, GD675-5 S/N 55001-UP, GD655-6 S/N 60001-UP, GD655-7 S/N 65001-UP, GD675-6 S/N 60001-UP, GD675-7E0 S/N 65001-UP, GD755-5R S/N 10001-UP, GD825A-2 S/N 11001-UP, GD825A-2E0 S/N 20001-UP, and GH320-3 S/N 40001-UP.

That means the safest sales wording is this: 0159333018, 01593-33018 NUT KOMATSU is publicly linked to many Komatsu grader and stabilizer applications, but final fitment should always be checked by exact model, serial number, and front axle subgroup before order confirmation. The public pages clearly show that this same nut appears in multiple front-axle variations, including axle support, pin, housing, and related-parts groups.

Why This Part Matters in Real Maintenance

In real maintenance, lock nuts are often replaced for good reason. Once a slotted nut has seen repeated tightening cycles, surface wear, thread wear, or cotter-pin damage, technicians may no longer trust it to hold preload and align cleanly with the locking hole. In front axle service, where the joint is exposed to constant movement and shock, that matters even more. Public parts references placing 01593-33018 next to cotter pins, washers, bushings, seals, and leaning-rod parts show that it is used exactly in this kind of mechanically sensitive location.

This is why 0159333018, 01593-33018 NUT KOMATSU should not be treated as “just a nut.” It is a locking component in a structural front-end joint. If it is mismatched, reused beyond condition, or replaced with the wrong thread pattern, the assembly may not lock correctly. That can create delays during rebuilds and raise confidence issues in the final repair. For workshops, the correct nut is part of doing the job once and doing it right.

Why Buy from 3GEN Export

At 3GEN Export, we supply 0159333018, 01593-33018 NUT KOMATSU as an OEM supplier focused on heavy machinery spare parts for graders, wheel stabilizers, and related equipment. Our goal is not only to provide the part number, but to help buyers source the right lock hardware for the right front-axle application.

For a part like this, speed and accuracy both matter. A grader repair can be delayed by something as small as a missing slotted nut if the axle pin cannot be locked and the machine cannot be safely reassembled. That is why we support worldwide delivery in 5 working days, helping dealers, workshops, contractors, and fleet operators reduce downtime and keep repairs moving.

Final Summary

0159333018, 01593-33018 NUT KOMATSU is a slotted retaining nut publicly cataloged for Komatsu front axle applications, with a reference weight of 0.122 kg and repeated use in front axle, front axle support, front axle pin, front axle housing, and related parts pages. Public parts references show it working beside 04050-16045 cotter pins, washers, bushings, dust seals, and axle-support components, which strongly supports its role as a lock nut for pinned front-end joints. Public machinery lists connect it with a wide range of Komatsu graders and stabilizers, including GD505A-3, GD535-5, GD555-5, GD605A-5, GD655-6, GD675-5, GD705-5, GD755-5R, GD825A-2, GH320-3, and GS360-2, among others.

For your website, the strongest positioning is to describe 0159333018, 01593-33018 NUT KOMATSU as a Komatsu slotted lock nut for front axle assemblies, use both number formats naturally, mention the public weight figure, and present 3GEN Export as the OEM supplier with worldwide delivery in 5 working days.

Reference weight: 0.18 kg.

Manufactured in Turkey, these products are made using the latest technologies and built to meet the highest international standards. Each machine is a high-quality copy of the original, ensuring durability, precision, and performance that you can rely on for modern construction and metalworking projects.