Part# 6000-4
MFR Model# 00850721301


Inside and out, aircraft hose MIL-DTL 6000D is designed to handle the effects of oil, alcohol, coolant, and water. The tube is oil resistant with a black cover reinforced with high strength mildew resistant yarns. It withstands extreme temperature conditions from -40F to +250F. Meets or exceeds U.S. military specs. Lightweight, flexible and easy-to-handle, making it the perfect hose for hard-to-get-to spots in tight engine compartments.

Sold in one foot increments.
MIL-DTL-6000C was superceded by this MIL-DTL-6000D
Note: This hose is not recommended for use as fuel lines.
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Great product to use on rocker box drain lines from cylinder head to sump on Lycoming Engines. Heavier duty than the smaller outside diameter hose. This is 3/8 I.D. by 3/4 O.D. and MIL 6000.

May 18, 2021

delivered on time, as advertised

Ben B
December 28, 2020

Excellent product at a great price!!

Clint D
May 7, 2020

Delivered as expected

February 25, 2018

Excellent hose and I am using this for the coupling on a Lycoming 0320 oil return line. very supple, cuts well.

Al F
September 28, 2017

Due to the inability to find the OEM or an appropriate automotive product, I used this hose to replace a deteriorated direct injection oil hose on an outboard boat engine. The outside diameter is slightly larger than the OEM, but it worked and I think it is probably higher quality than the OEM.

Michael C
December 1, 2020

The hose worked fine but whoever does the measuring at A/C Spruce needs to buy a better yardstick. Fortunately my project didn’t need 12” of hose but if it did it would have been more delays and shipping fees.

September 11, 2020

When I purchased this hose the lady said it was flexible and had a smooth outer layer. The hose does not bend well and kinks easily and has a braided outer layer. Was not what I was expecting and will not work for me.

January 17, 2020

I just found the hose weeping oil on my Cessna T310R on the lines running from the wet vacuum system. installed in March 18

Martin G
October 19, 2018


Please note, Aircraft Spruce's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.

Q: What types of fittings work with the MIL6000D oil and coolant hose?

A Barb, or slip-on, fitting is commonly used for this hose. A hose clamp is used to secure it.

Q: What is the rubber material used for manufacture of this MIL6000D hose?

The inner tube is manufactured from synthetic rubber and the outer coating is a reinforced polychloroprene rubber. per the mil-t-6000 specification.

Q: What is the shelf life of MIL-6000 hose?

This will have a shelf life of 5 years.

Q: What is the working pressure of the hose?

Operating pressure is 250psi, and the burst is 1000.

Q: How long is this MIL 6000D hose?

This hose is priced and sold by the foot. When you enter quantity, you are entering the number of feet you would like to order.

Q: What is the maximum continuous length you can order MIl-6000 hose in?

It depends on the hose size but 6000-4 for example we usually get in 50 foot rolls.

Q: Will this 6000D hose resist 5606 hydraulic fluid use?

It is not rated for 5606.

Q: Is this MIL6000D hose for use in certified aircraft?

This is used in certified aircraft and meets mil spec MIL-DTL-6000C. We best recommend to refer to your parts manual or an A&P mechanic to see if this hose would apply to your aircraft application.

Q: Is this hose rated for AVGAS?

No, this is for oil and coolant only.

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