skip to footer block
EDM EDMO NMC S45A 12 Elliptical Bulkhead Seal 1/2 P3336678EDM-NMCS45A-12 https://cdnimages.opentip.com/full/EDM/EDM-NMCS45A-12.jpg EDMO NMC S45A 12 Elliptical Bulkhead Seal 1/2 Manufacturer Part Number: NMC S45A-12Nylon Bulkhead seals are used when electrical harnesses or tubing is passed through bulkheads in pressurized and non-pressureized aircraft. You need to order 2 to make a complete set.Product CodesMfr Part No:NMC S45A-12ECCN:EAR99SCHEDULE B CODE:3917.40.0000 3336678 0.0200lbs 0.00 0.00 0.00
EDMO
17.8 2027-01-06
2 EA
348 In Stock
customer review - by , November 11, 2025
5/ 5stars
I can't find any components in the US that match the threads, which appear to be something metric.
customer review - by , August 8, 2025
5/ 5stars
Love it
customer review - by , February 2, 2025
5/ 5stars
Finally an easy to use plug for the hundred gallon water troughs for my horses. The metal ones after a while tend to be impossible to unscrew. So far these are amazing.
customer review - by , July 7, 2024
5/ 5stars
I got this plug for my 40 gallon tank. There was a hole in it from the previous owner of the tank. It was easy to assemble. When I first put the plug in, it didn't leak. Then it started this slow drip, like super slow. And now, it doesn't leak again. I'm wondering if it has to do something with the temperature or something. It just stopped dripping, so I stopped worrying about it. My tank is glass and the plug fit nicely.
customer review - by , June 6, 2023
5/ 5stars
It worked great
customer review - by , May 5, 2023
5/ 5stars
Used this to tap into my septic tank to dump my RV tanks and it works great. Quality material.
customer review - by , November 11, 2022
5/ 5stars
This is the only way to put an outlet on your rain barrel
customer review - by , October 10, 2022
4/ 5stars
Great for my application BUT the outer threads are left handed which causes the locking nut to loosen when tightening the inner thread connection
customer review - by , September 9, 2022
5/ 5stars
Very good quality and a fraction of the price as compared to local vendors. Will order some more for sure.

EDMO NMC S45A-12 Elliptical Bulkhead Seal 1/2

stars Rating 5 | 9 reviews
Brand EDMO
Shop more from EDM

SKU: EDM-NMCS45A-12
Unit Price:
$8.90Free shipping on orders over $359.00 on select EDM- items. Details
Min.Order Price: $17.80 for 2 units
Quantity:
348 In Stock
* This item must be ordered in multiples of 2.
*  Click "Add to Cart" to calculate shipping and delivery time.
Share & Earn 10% Cash Back Best Price in Bulk

Pricing Note

Free Shipping Promotion: Buy more items from the same series, product code beginning with EDM-, and you can get free shipping for an order of over  $359.00  consisting of only EDM- series products.

Product Description

Manufacturer Part Number: NMC S45A-12

Nylon Bulkhead seals are used when electrical harnesses or tubing is passed through bulkheads in pressurized and non-pressureized aircraft.
You need to order 2 to make a complete set.

warning tips WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to www.p65warnings.ca.gov.

Return Policy

Following items are non-returnable:

Restocking fee 30%
Special Order Items
Lost or "Broken" Traceability
Items Sold as Non-Returnable
Software
Computer Based Products
Programmed Items
Time Sensitive Items
Outdated Items
Used Items
Damaged Items
Opened Items
Need more information?
Our staff are available to answer any questions you may have about this item


Customer Reviews
5 out of 5
5 stars
8
4 stars
1
3 stars
0
2 stars
0
1 stars
0
By Dean Willis
Date: November 24, 2025
I can't find any components in the US that match the threads, which appear to be something metric.
Rating: 5 stars [5 of 5 Stars!]
By Miriam Baker
Date: August 17, 2025
Love it
Rating: 5 stars [5 of 5 Stars!]
By Trixy Jones
Date: February 02, 2025
Finally an easy to use plug for the hundred gallon water troughs for my horses. The metal ones after a while tend to be impossible to unscrew. So far these are amazing.
Rating: 5 stars [5 of 5 Stars!]
By CynHue
Date: July 27, 2024
I got this plug for my 40 gallon tank. There was a hole in it from the previous owner of the tank. It was easy to assemble. When I first put the plug in, it didn't leak. Then it started this slow drip, like super slow. And now, it doesn't leak again. I'm wondering if it has to do something with the temperature or something. It just stopped dripping, so I stopped worrying about it. My tank is glass and the plug fit nicely.
Rating: 5 stars [5 of 5 Stars!]
By dennis erickson
Date: June 13, 2023
It worked great
Rating: 5 stars [5 of 5 Stars!]
By Andrew
Date: May 02, 2023
Used this to tap into my septic tank to dump my RV tanks and it works great. Quality material.
Rating: 5 stars [5 of 5 Stars!]
Items 1 - 6 of 9 reviews
 1  2  [Next]