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Brass Poly-Flo Fittings

From $1.15 to $16.60
Type Tube O.D. Thread Size Part No. Price Buy
261UB- Nut with Sleeve1/85/16-24
261UB-02
$1.49
Quantity
261UB-Nut with Sleeve3/163/8-24
261UB-03
$1.55
Quantity
261UB-Nut with Sleeve1/43/8-24
261UB-04
$1.40
Quantity
262P - Union1/8-
262P-02
$6.50
Quantity
262P - Union3/16-
262P-03
$5.75
Quantity
262P - Union1/4-
262P-04
$5.35
Quantity
264P - Union Tee3/16-
264P-03
$9.90
Quantity
264P - Union Tee1/4-
264P-04
$9.90
Quantity
266P - Female Connector1/81/8
266P-02X02
$4.65
Quantity
266P - Female Connector3/161/8
266P-03X02
$4.60
Quantity
268P - Male Connector1/81/8
268P-02X02
$2.70
Quantity
268P - Male Connector3/161/8
268P-03X02
$4.90
Quantity
268P - Male Connector1/41/8
268P-04X02
$2.60
Quantity
269P - Male Elbow1/81/8
269P-02X02
$6.95
Quantity
269P - Male Elbow3/161/8
269P-03X02
$6.85
Quantity
269P - Male Elbow1/41/8
269P-04X02
$7.90
Quantity
270P - Female Elbow3/161/8
270P-03X02
$12.65
Quantity
272P - Male Branch Tee3/161/8
272P-03X02
$16.60
Quantity
272P - Male Branch Tee1/41/8
272P-04X02
$8.50
Quantity
266 - Female Connector1/41/4
266P-04X04
$4.70
Quantity
261 - Nut with Sleeve1/4-
261P-04
$1.15
Quantity
271 - Male Run Tee1/41/4
271P-04
$7.70
Quantity
270 - Female Elbow1/41/4
270-N04X04
$9.60
Quantity
Subtotal $0.00
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Overview

Poly-Flo Flareless tube fittings consist of a brass body and nut with brass sleeve. Use with PolyFlo, PVC or Nylaflow pressure tubing. The Poly-Flo fittings have the same configuration as Nylo-Seal fittings of the same basic part number.
Note: The fittings are sold individually and not in pair. Brass Poly Flo fittings cannot be used with NSR tubing listed. Use SAE fittings, see Accessories tab.
   
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WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov.

  • Accessories
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Reviews

Never use plastic. These are the proper way to do pitot static systems. No push on fittings either

John L Verified Purchase

Brass Union Tee 264P-04

March 12, 2024

A must have on hand along with some tubing when working on Cub Crafters brake lines.

Pierce A Verified Purchase

Brass Nut With Sleeve 261Ub-03

December 20, 2023

Works great on those plastic brake lines Cub Crafters uses.

Pierce A Verified Purchase

Brass Union 262P-03

December 20, 2023

Worked perfectly (first time, no leaks) on my home built brake line.

Alan B Verified Purchase

Brass Nut With Sleeve 261Ub-03

October 14, 2023

Just what I needed for my project.

Kerry D Verified Purchase

Brass Nut With Sleeve 261Ub-03

August 12, 2023

Dennis L Verified Purchase

Brass Male Elbow 269P-04X02

July 3, 2023

Order was packed well shipped the Same day and exactly what was expected.

Roger G Verified Purchase

Brass Nut With Sleeve 261Ub-02

June 17, 2023

Doing an overhaul on the aircraft, it’s nice that Aircraft Spruce still has the same parts and part #’s 10+ years later!

Rick R Verified Purchase

Brass Union 262P-04

June 1, 2023

These work great for brake line connections.

Gerald B Verified Purchase

Brass Nut With Sleeve 261Ub-03

March 21, 2023

These work great for brake line connections.

Gerald B Verified Purchase

Brass Union 262P-03

March 21, 2023

Q&A

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: Are these fittings reusable?

These can be re-used but they should be inspected before doing so. If there is damage to the fitting it should be replaced. It is at the discretion of the installer whether it should be replaced or not. We cannot, as a blanket statement, say they can all be reused.

Q: How should the brass Poly-Fittings assembled with the Nyla-Flow Tubing? What is the requirement for tighten them only finger tight? How is it ensured that once tightened it will not become loose and might leak?

You insert the tube into the nut and then tighten the nut on to the fitting. The vendor tightening spec is "finger tight, plus a 1/4 turn with a wrench."

Q: Can you provide the part no for these nuts with the nylon sleeves?

That would be the 268 model. Those have nylon inserts on the nuts on them.

Q: What is the maximum pressure rating for these fittings?

Up to 1200 psi.

Q: Is it necessary to use thread sealant on poly-flo fittings or will the brass-to-brass connection suffice to prevent leaks in brake applications?

No, sealant is not necessary.

Q: Is it needed to use brass tubing inside the nyla flow tubing where it is compressed at the fitting?

Yes, the brass Poly-flo fittings are required for Use with PolyFlo, PVC or Nylaflow pressure tubing

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