MS21900D4
Military Standard Boss Nipple
MS21900D4 Boss Nipple

Add to Quote
MS21900D4 Datasheet Features and Specification
Additional Information
SKU / Model: | MS21900D4 |
NSN: | 4730-00-640-5098 |
FSC: | Hose, Pipe, Tube, Lubrication, and Railing Fittings / 4730 |
Pack Weight (Approx.) | 0.000 lb |
Minimum Qty (MOQ): | 1 |
Schedule B: | 7609.00.0000 |
ECCN: | EAR99 |
National Motor Freight: | 051400, Pipe Fittings Aluminum |
Download PDF Version MS21900D4_Military-Fasteners-com.pdf |
|
![]() |
* report an issue on this page
More boss nipples
Aluminium alloy 2024 outside 1/2in. adapter flareless to flared
Aluminium alloy tube outside 3/8 inch adapter flareless tube to flared tube
aluminum alloy 2024, tube outside 5/16", adapter flareless tube to flared tube
Aluminium alloy 2024 outside 3/16in. adapter flareless to flared
Aluminum alloy 2024, tube outside 5/8 inch adapter flareless tube to flared tube
Have a question
If you require a quote on this or any product please visit our quote request page »
Browse our frequently asked questions page.
You may contact us by phone at +1 (904) 543-6395 or
email us using our contact form.
Our hours of operation are 8:00am - 6:00pm EST
Customer Reviews

As always, orders are shipped promptly and received when expected. Rarely can you find products at lower cost than at Military Fasteners. The web site is easy to use. My favorite place to order from. When looking for aviation products, I always go to Military Fasteners first.
Amazingly prompt response! I ordered over 1000 items and couldn't believe it when there was an email waiting the following morning saying the items had been dispatched. Easy to track the package online. By comparison I ordered some items from another supplier 3 months ago and I'm still waiting, with no apologies or communication emanating from them to explain the delay.
I have been a customer since Fullerton Air Parts (Flo Irwin). That should speak volumes of the service I have received from Military Fasteners. In the early days, I had a variety of planes and was based out of Orange County Airport. At the time, the airport was surrounded by bean fields. I, and some of my friends, would frequently fly into Fullerton airport for lunch, the pick up whatever supplies we needed from Flo. She was a great lady, and I am glad that she passed on such a wonderful legacy. I am certain that she would be very proud of what she started, and proud of you all for building on her meager beginnings.
Lots of items and great pricing. Makes shopping for parts so much easier to get everything at the best pricing in one place. You have made my job a whole lot easier!
Please complete this form if you're having an issue with ordering this item or this item displays invalid or innacurate information or specifications. We thank you for taking the time to report issues so that we may better serve you.