Before deciding whether or not you need to repair any broken propeller for your boat, it is important to first establish if replacing would be a better option as opposed to doing propeller maintenance work. You can figure this out simply by asking yourself if the propeller kept your motor in the correct rpm range. Did the boat using the propeller accelerate well? Did you notice vibrations from the propellor when taking out the boat? If you answered yes to any of these questions, then a replacement might be better than trying to repair the propeller.

If, however, you have not experienced such issues, then you need to inspect your propellers to see where any underlying issues are. Once you can locate the issue, you can then move forward with solving the problem. For aluminum propellers, you should analyze for excessive metal losses that exceed more than 10% of the blade area, as well as for any thin blades or cavitation burns. Should you see any such red flags, you may want to consider acquiring an inner hub to provide a protective layer around the propeller.

In the case of bronze propellers, you need to look extensively at the blade thickness. Warped blades can be salvageable but it’s when you straighten them out that you must inspect them deeply. Once you straighten the blades, you will need to regrind them to smooth the surface and remove the dents and nicks. Every time that you straighten the blades, critical metal thickness is lost. A good number to note for bronze propellers is that 20% reduction in thickness can diminish the strength by up to 50%.

At NSN Sourcing, owned and operated by ASAP Semiconductor, we can help you find aircraft parts you need, new or obsolete. As a premier supplier of parts for the aerospace, civil aviation, and defense industries, we're always available and ready to help you find all the parts and equipment you need, 24/7x365. For a quick and competitive quote, email us at sales@nsn-sourcing.com or call us at +1-720-923-2840.

Releted Parts : 7998-161, 3072014-2


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With the advent of lighter, higher RPM engines for marine vessels, engines have faced less ability to absorb vibrations that come with operation. With Marine engine mounts, boats can work to dampen the amount of vibrations caused by the engines, while also ensuring that the engine is secured to the vessel correctly. In this blog, we will discuss the importance of marine engine mounts for vessel engines.

Marine engine mounts are a very important part of ensuring that the boat’s engine is securely fastened and mounted to the vessel. If the mount becomes worn or damaged, the engine can produce heavy vibrations which can lead to unwanted noise, damage, and other detrimental effects. This vibration may be caused by a multitude of reasons, whether the mount is not installed correctly, or if it is too soft or hard to provide optimal securing and vibration dampening. Damage or wear to surrounding or related components can also lead to these strains and issues. Due to these issues and effects, ensuring that the right marine engine mount is chosen, as well as is properly maintained, is crucial to ensure that the engine and components are able to function properly and withstand the pressures faced through normal usage.

When choosing a marine engine mount, it is important to ensure that it matches the specific needs for your application. The average transmission unit may require three to four mounts, and installing the correct amount is critical. The horsepower of the engine and weight should be accounted for as well when choosing the correct mount, as to ensure that it can handle strains and loads put on it. Lastly, it is always important to know the model and make of the engine when finding the correct mount. Inspecting and maintaining the marine engine mount should be part of the yearly maintenance of your marine vessel. Doing routine checks and maintenance can ensure the longevity of the mount, as well as those of the surrounding marine engine parts.

At NSN Sourcing, owned and operated by ASAP Semiconductor, we can help you find marine inboard engine parts, new or obsolete. As a premier supplier of parts for the aerospace, civil aviation, and defense industries, we're always available and ready to help you find all the parts and equipment you need, 24/7x365. For a quick and competitive quote, email us at sales@nsn-sourcing.com or call us at +1-720-923-2840



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The end of summer marks the close of boating season, so as the days shorten and the nights turn colder, owners of boating vessels take this grace period before the chill fully sets in to prepare their vessels for a long winter. Aside from just simply storing away their boats, there is more that needs to be administered in order to ensure the functionality of a boating vessel for future seasons. Doing less could leave your boat vulnerable to damage and costly repair work.

Owners who are seasoned in winterizing boats will often make a checklist of the things that need to be properly cared for throughout the season. Here we provide a basic outline of the items that you need to check while winterizing your vessel.

Inboard Engine(s)

To prep your inboard engine, you’ll want to run it until it’s warmed up and then change the oil and oil filter. It’s important to do this while the engine is still warm so as to remove any impurities that might have accumulated. Afterward, you then flush water through the engine and pump antifreeze through the manifold. The last step is to change the transmission fluid before removing the spark plugs, and then wipe down the engine with a towel and WD-40.

Fresh Water System

The fresh water system is an important step that you can’t miss when winterizing your boat. When draining, you have to first drain the hot water heater and the fresh water tank. Once you’ve done this, you can disconnect the in and out lines of the hot water heater before reconnecting them again. You then have to pump antifreeze through the system and eventually rise off the antifreeze by turning on all faucets in the boat. The last step is to add non-toxic antifreeze to the water heater.

Prepping The Interior

It is very easy for mold or mildew to set in an idle boat, so cleaning and preparing the interior portion is extremely important. Be sure to clean out all compartments, and remove any valuables, electronics, and personal items. It is highly recommended that you bring any cushions back home with you, but some people turn them on an edge so as to let air circulate around them. Be sure to clean out your freezer and refrigerator before you leave. Lastly, install a dehumidifier or use moisture absorbing products to keep mildew at bay. For more information on winterizing your boat or acquiring marine parts, consult the experts at NSN Sourcing.

At NSN Sourcing, owned and operated by ASAP Semiconductor, we can help you find all the unique parts for the aerospace, civil aviation, and defense industries. We’re always available and ready to help you find all the parts and equipment you need, 24/7-365. For a quick and competitive quote, email us at sales@nsn-sourcing.com or call us at +1-720-923-2840.

Related Parts - MC-20-98502, 11755, MS3902929-214



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Choosing a GPS for a marine vessel might seem like a foreign concept to some people, but the more you get familiar with what you or your Captain need to direct the boat, the less complex it becomes to shop around for the right GPS. Read on below to see some helpful tips on what to look out for in your search.

GPS with Mapping Systems

The first question you need to ask yourself is what kind of journey or ventures your vessel be needing a GPS for. If you know the majority of your trips will consist of local or smaller lakes as opposed to open seas, then a non-mapping GPS may be the most suitable option for you (especially if you’re already familiar with the surroundings). 

Non-mapping systems typically display only a compass, your distance traveled, as well as latitude and longitude. However, if you are journeying into unfamiliar waters, then you should go with the GPS that has the standard basemap. They can be useful for rivers, lakes, shorelines, as well as for when you’re venturing through marinas and larger ports. These types of GPS have more features than non-mapping systems and are similar to a car GPS. Finally, you can choose the GPS with the most advanced mapping system. These will usually provide 3D viewing capabilities of underwater terrain, weather forecast alerts, and more.

Portable or Handheld? Choosing Style 

If you’re more prone to using your phone GPS as opposed to your car GPS, then you likely prefer having navigational power from the palm of your hand. For navigating boats, you’d likely enjoy the handheld style GPS. They’re able to run on 12-volt power and are usually supplied with an accompanying 12-volt cigarette lighter cable. 

A handheld GPS tends to have a smaller screen, so if you’d like to go for larger screen visibility, then you can opt for a portable GPS system. Portables offer a 6-inch touch screen and can be used in both boat and car. If you’d like to invest in an even larger screen, then a dash mounted GPS is the choice for you. A little more on the expensive side, they’ll typically carry a large screen and can be mounted on your helm for easier visibility. 

Number of Satellites 

Last, but definitely not least, it’s important to note the GPS specs on how many satellites your device is able to pull data from. Three satellites is usually all a GPS will need to determine coordinates, but many devices today can pull from 12-24 satellites. The more satellites, the better accuracy you’re guaranteed, so it’s important to be on the lookout for these specs when shopping around. If you’re considering where to begin your search for a quality marine GPS parts, be sure to check out NSN Sourcing! We carry a diverse inventory of marine parts to meet client needs! 

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The motor is obviously one of the most important considerations in a boat’s design, determining the boat’s speed, maneuverability, center of balance, and maintenance needs. There are two choices in where a boat’s motor is placed, either an inboard configuration, or an outboard configuration. In this blog, we will break down the differences between the two designs, and their respective advantages and disadvantages. 


Inboard motors are high-performance engines repurposed for marine use from their typical automotive application. They are mounted in the center of the boat as a direct-drive system, or stowed inside the transom as a V-drive system. In both cases, the drive train and prop are built directly into the hull. The advantages of inboard engines is that they have excellent fuel efficiency, are relatively quiet, last longer compared to outboard motors, and have superior torque and power. They are commonly used in water sports like wakeboarding and waterskiing, as they have better wake control, towing power, and a clear transom for tow ropes. They also have a lower center of gravity, which helps cutting through heavy ocean waves. However, mounting the engine inside the hull reduces interior space for storage, they cost more upfront, are more labor-intensive in terms of maintenance, and require the boat to be fully winterized. 

Outboard motors are independent engines that are mounted onto the exterior of the transom. Outboard motors can be operated via a dashboard console or via a handle connected directly to the motor. Outboards have the advantages of being fully portable, much easier to maintain and winterize, save space on the boat for storage, are cheaper, and have a higher potential top speed. They can also be tilted up and out of the water, making it safer to use in shallow waters. They are often used for fishing, speedboats, and party boats. However, outboard engines lack the total torque to drive heavier boats. This issue is typically overcome by adding a second engine mounted to the boat, but this can negate the advantage of being less expensive compared to inboard engines. 

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Offshore boating offers adventure and opportunities that near-shore boating simply cannot. Fishing, travel, and the simple thrill of the open seas are all available, but offshore boating also carries its share of risks and challenges. The lack of visual reference points, long distance navigation, and the unpredictability of the open ocean all make offshore boating far more difficult. Therefore, having modern electronics onboard is critical for a safe voyage.

Navigation is of course critical when out on the open seas, with nothing but water in every direction around your boat. Marine GPS systems, thankfully, are not reliant on landmarks; by triangulating with satellites in orbit overhead, a functioning GPS system is always able to locate your craft. Chartplotters take GPS data and combine it with databases of electronic navigation charts to help plan the boat’s course. While those two navigate the boat on the surface of the ocean, sounders help watch for what is below. Sounders project sonar pulses from the bottom of the boat’s hull, which bounce off the seafloor or objects on it, and return back to the sounder. Because it already knows how fast the sonic waves travel, the sounder can calculate the distance of objects from the boat’s hull based on how long it takes for the waves to return. This in turn allows the helmsman to know how deep the water actually is, as well as the location of rocks, coral reefs, wrecks, or other things they should be aware of.

Another critical electronic system is radar. Radar has a variety of uses, ranging from navigation and preventing collisions in poor-weather conditions, to spotting birds for fishing and monitoring weather systems. Radar systems on boats come in either dome or open array configurations. Dome, or closed arrays, are good for general navigation and are more compact than an open array. On the other hand, open arrays offer higher performance and are more accurate. Both types place additional structural requirements on a boat, however, as the radar has to be mounted as high up from the waterline as possible for better performance. This means that the boat must have a hard top strong enough to support the radar system’s weight, with different designs being able to support different amounts. Therefore, it is critical to know your boat’s structural limitations while shopping for a radar system.

Lastly is radio equipment. Marine radio systems broadcast in the VHF range of 156 to 174 Mhz. Modern VHF radios have not only transmit and receive capabilities but are also required to have a level of Digital Selective Calling (DSC), to allow a distress signal to be sent with a single button press. Along with summoning rescue services, marine radios are also necessary for communicating with harbors, bridges, and marinas.

At NSN Sourcing, owned and operated by ASAP Semiconductor, we can help you find all the electronics parts for marine, civil boating, and defense industries. We’re always available and ready to help you find all the parts and equipment you need, 24/7-365. For a quick and competitive quote, email us at sales@nsn-sourcing.com or call us at +1-720-923-2840.



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