MS21900-8
Military Standard Boss Nipple
Outside diameter: 1/2", carbon steel, adapter flareless tube to flared tube, MS21900 series fitting

MS21900-8 Datasheet Features and Specification
Quick Specs
Thread Series | UNJF |
Thread Class | 3A |
Material | Steel |
Additional Information
Alternate Part Numbers
SKU / Model: | MS219008 |
NSN: | 4730-00-421-1353 |
FSC: | Hose, Pipe, Tube, Lubrication, and Railing Fittings / 4730 |
Product Series: | MS21900 |
Pack Weight (Approx.) | 0.148 lb |
Minimum Qty (MOQ): | 1 |
Schedule B: | 7326.90.8588 |
ECCN: | EAR99 |
National Motor Freight: | 052190, Pipe,tubing,or Pipe Or Tubing Fitti |
Download PDF Version MS21900-8_Military-Fasteners-com.pdf |
|
![]() ![]() |
* report an issue on this page
Frequently bought together
Other customers frequently bought these along with MS21900-8
MS21900-4
Boss Nipple
in Fittings
outside diameter: 1/4", adapter, flareless tube to flared tube, carbon steel
MS21900V6P
Tube Nipple
in Fittings
tube outside diameter: 3/8", adapter, flareless tube to flared tube, corrosion resistant steel, cadmium plated,
More MS21900 boss nipples
$41.94 Each, Aluminium alloy 7075 tube outside 1/2in. adapter flareless tube to flared tube
Aluminum alloy 7075, tube outside 5/16in., adapter flareless tube to flared tube
Aluminum alloy 7075, tube outside 1/4in., adapter flareless tube to flared tube
Aluminum alloy 7075, tube outside 5/8in., adapter flareless tube to flared tube
4730-00-080-3731 Boss Nipple
Corrosion resistant steel 304 tube outside 1/4in. 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

Ordering is easy, prices are generally the best around, and now that USPS is a shipping option, everything is good!
Any time I need anything it is here when I need it without question. I have tried other suppliers and ship dates are not honored sometimes it can take two weeks for item in their stock!! Thanks for being consistent and prompt.
I have experienced 5-star customer service from Isaac Beltran at Military Fasteners. He is a true professional who goes out on a limb to help out his customers. I always check with Isaac when I need help with finding those hard to find items". Thank you again Isaac for your support!"
Service is excellent. I appreciate your company willing to fill small orders. Long term projects call for small orders from time to time and your willingness to help the home builderis exceptional. Thank you for great service.
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.