MS21914-4
Military Standard Tube Cap
outside diameter: 1/4", pressure seal, flareless tube, carbon steel, MS21914 series fitting





MS21914-4 Datasheet Features and Specification
Quick Specs
Thread Qty | 20 |
Thread Series | UNJF |
Thread Class | 3B |
Material | Steel |
Additional Information
Alternate Part Numbers
SKU / Model: | MS219144 |
NSN: | 4730-00-640-0632 |
FSC: | Hose, Pipe, Tube, Lubrication, and Railing Fittings / 4730 |
Product Series: | MS21914 |
Pack Weight (Approx.) | 0.048 lb |
Minimum Qty (MOQ): | 1 |
Schedule B: | 7616.99.5190 |
ECCN: | EAR99 |
National Motor Freight: | 052190, Pipe,tubing,or Pipe Or Tubing Fitti |
Download PDF Version MS21914-4_Military-Fasteners-com.pdf |
|
![]() ![]() |
* report an issue on this page
Frequently bought together
Other customers frequently bought these along with MS21914-4

MS21914-6
Tube Cap
in Fittings
outside diameter: 3/8", carbon steel, pressure seal flareless tube, MS21914 series fitting

MS21914-5
Tube Cap
in Fittings
outside diameter: 5/16", pressure seal flareless, carbon steel, MS21914 series fitting (NEW REVISION IS MS21914V5P)

MS21913-10
Threaded Tube Fitting Plug
in Fittings
outside diameter: 5/8", hex head, flareless tube, carbon steel, MS21913 series fitting

MS21913V6P
Threaded Tube Fitting Plug
in Fittings
tube outside diameter: 3/8", plug hex head, flareless tube, corrosion resistant steel, cadmium plated, MS21913 series plug

MS21914-10
Tube Cap
in Fittings
outside diameter: 5/8", pressure seal, flareless tube, carbon steel, MS21914 series fitting

MS21914-12
Tube Cap
in Fittings
outside diameter: 3/4", pressure seal, flareless tube, carbon steel, MS21914 series fitting
More MS21914 tube caps
Corrosion resistant steel (15-5ph), cadmium plated, tube outside 1/2in., cap, pressure seal flareless tube
Pressure seal flareless tube fitting tube outside - 3/8in. corrosion resistant steel (15-5ph), cadmium plated
Corrosion resistant steel cadmium plated, tube outside 5/16in., cap, pressure seal flareless tube
new revision cap fitting corrosion resistant steel (15-5ph), cadmium plated, tube outside 1/4in., pressure seal flareless tube
corrosion resistant steel (15-5ph), cadmium plated, tube outside 3/16", cap, pressure seal flareless tube
Corrosion resistant steel (15-5ph), cadmium plated, tube outside 1/8in., cap, pressure seal flareless tube
Product Image Gallery
Product code MS21914-4




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

Recently my avionics technician and I were installing a component in my aircraft and there were some critical fasteners missing from the manufactures package. This stopped the entire process. I called Military Fasteners after finding the parts on line, and Trisha answered the phone. I told her the situation and that I needed them ASAP. I found the parts gave her the part number and she confirmed they were in stock. This was about 430 in the afternoon just before closing. Trisha was kind and professional got the parts out the door that evening even though it was after the shipping cut off. Saved the day. I can tell you this entire company is represented by Trisha, anything they can do to help you out of a jamb they will absolutely go the extra mile and Trisha is the go to person. I am sure there are others there with her same attitude and professionalism. This is a great resource for all your fasteners needs.
I order parts about once a week for the restoration of my Grumman AA-1A. Service and prompt delivery are always above expectation. I don't know what I would do without Military Fasteners and that's no joke! Thanks for your great work!
Received order very quick. I was totally impressed with how well it was prepared for shipment. While a fragile order, it arrived undamaged in any way because of the excellent packaging. Thanks.
Great service, always spot on and very expedient! Excellent working with Paige Twombly for quick turnarounds, much appreciated.
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.