MS21900-4
Military Standard Boss Nipple
outside diameter: 1/4", adapter, flareless tube to flared tube, carbon steel

MS21900-4 Datasheet Features and Specification
Quick Specs
Thread Series | UNJF |
Thread Class | 3A |
Material | Steel |
Additional Information
SKU / Model: | MS219004 |
NSN: | 4730-00-541-1579 |
FSC: | Hose, Pipe, Tube, Lubrication, and Railing Fittings / 4730 |
Product Series: | MS21900 |
Pack Weight (Approx.) | 0.058 lb |
Minimum Qty (MOQ): | 1 |
ECCN: | EAR99 |
National Motor Freight: | 052190, Pipe,tubing,or Pipe Or Tubing Fitti |
Download PDF Version MS21900-4_Military-Fasteners-com.pdf |
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Frequently bought together
Other customers frequently bought these along with MS21900-4

MS21900-5
Boss Nipple
in Fittings
outside 5/16", adapter, flareless tube to flared tube, carbon steel
MS21900-8
Boss Nipple
in Fittings
Outside diameter: 1/2", carbon steel, adapter flareless tube to flared tube, MS21900 series fitting
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
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Customer Reviews

Would definitely buy again from Military Fasteners. Order was delivered sooner than expected. Good price and order quality was better than expected.
Order arrived promptly and well packed. Was exactly as described and worked flawlessly. Happy Happy!
Fast, efficient, knowledgable, good all round people and I will be doing more business with them. I have an older plane and it is needing some refinements. Thanks for your service!
Well pleased with the prompt and complete service I have received over the past years with Military Fasteners. Good products, great selection, great service.
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