MS21916W6-4
Military Standard Boss Reducer
3/8" to 1/4", aluminum alloy, reducer, external thread, flareless tube




MS21916W6-4 Datasheet Features and Specification
Quick Specs
Thread Series | UNJF |
Thread Class | 3A |
Material | Aluminum |
Additional Information
Alternate Part Numbers
SKU / Model: | MS21916W64 |
NSN: | 4730-00-166-4191 |
FSC: | Hose, Pipe, Tube, Lubrication, and Railing Fittings / 4730 |
Product Series: | MS21916W6 |
Pack Weight (Approx.) | 0.062 lb |
Minimum Qty (MOQ): | 2 |
Schedule B: | 7609.00.0000 |
ECCN: | EAR99 |
National Motor Freight: | 051400, Pipe Fittings Aluminum |
Download PDF Version MS21916W6-4_Military-Fasteners-com.pdf |
|
![]() ![]() |
* report an issue on this page
Product Image Gallery
Product code MS21916W6-4



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

As a race car owner and builder I find your pricing and selection of AN hardware and composite materials more than meet my needs and expectations.
Military Fasteners always delivered on what I purchased. And what I returned Military Fasteners is prompt on returning it as crediting my account. I only order for myself, so I'm quite satisfied the way Military Fasteners takes care of me only as a occasional customer. Thank you Military Fasteners Personnel.
Quite efficient and one gets the exact items ordered for...would use their services again
Abby is awesome and very helpful! I can always hear her smile through the phone!
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.