MS21916-6-4
Military Standard Boss Reducer
tube 3/8" to 1/4", reducer, external thread, flareless tube, carbon steel, MS21916 series fitting


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MS21916-6-4 Datasheet Features and Specification
Quick Specs
Thread Series | UNJF |
Thread Class | 3A |
Material | Steel |
Additional Information
Alternate Part Numbers
SKU / Model: | MS2191664 |
NSN: | 4730-00-541-4901 |
FSC: | Hose, Pipe, Tube, Lubrication, and Railing Fittings / 4730 |
Product Series: | MS21916-6 |
Pack Weight (Approx.) | 0.085 lb |
Minimum Qty (MOQ): | 1 |
Schedule B: | 7307.19.9080 |
ECCN: | EAR99 |
National Motor Freight: | 052190, Pipe,tubing,or Pipe Or Tubing Fitti |
Download PDF Version MS21916-6-4_Military-Fasteners-com.pdf |
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Frequently bought together
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Boss Nipple
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outside diameter: 1/4", flareless, carbon steel, MS21902 series fitting
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Product code MS21916-6-4

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Customer Reviews

Products are military grade MIL-SPEC as advertised. I was able to locate #10 locking counter-sunk nutplates when ALL other locations, including Aircraft-Spruce, could not supply.
Ashili Hansen was very helpful.
As always, my order was filled accurately and arrived quickly. The one item not in stock in California arrived two days later from another store. Over the years, whether a large order or just a few items,I have received the same quick service. My suggestion? Continue the excellent customer service.
I called the customer service line just before Air Venture at Oshkosh to find out if they would have the parts I needed at their booth. The service rep on the phone was very helpful and was able to check the inventory that was taken to Oshkosh.I was told that the parts would not be available but could be shipped from the warehouse without delay. I ordered a full set of intake seals for a Continental 085 on the spot and they arrived in a few days. I am very happy with the service provided, and will be ordering more parts soon! Thank you Larry
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