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Home / Hardware / Fittings / Nylo-Seal /Nylo-Seal Fitting 268-N 04X04
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Nylo-Seal Fitting 268-N 04X04

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$2.97/Piece
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Part# 268-N04X04
MFR Model# 268N-04X04
Tube
OD		Pipe
Thd.		ABCDEPart Number
1/41/41-25/641-3/165/815/6411/16268-N04X04

Overview

Nylo-Seal tube fittings are exceptionally strong. The bodies, made of nylon, are stronger than machined fittings of similar composition. They are furnished complete with nut/sleeve assemblies, made of acetal copolymer. Since the sleeve snaps into and is retained by the nut there is no fumbling for a loose sleeve. Just insert tube into the fitting and tighten the nut 2 to 2-1/2 full turns. Note: The most frequently used combination of tube and pipe sizes are 1/4" Tube x 1/8" Pipe and 3/8" Tube x1/4" Pipe.

For Nylo-Seal tubing, see "Accessories" tab

Less 10% on 50 pieces per size, Less 20% on 100 pieces per size

Reference Chart

259-P CAP,
259-N Insert (Nylon)

261-N Nut and
Sleeve Assembly
Tube O.D. A D
1/4 3/8 1/8
3/8 7/16 13/64
Tube O.D. Thd. A C
1/4 7/16-20 15/32 9/16
3/8 5/8-20 37/64 3/4

262-N Union

Tube O.D. A B C D E
1/4 1-25/64 63/64 5/8 7/32 15/32
3/8 1-21/32 1-1/4 13/16 23/64 19/32

264-N Union Tee
Tube O.D. A B D E
1/4 1-9/64 47/64 7/32 15/32
3/8 1-11/64 31/31 11/32 19/32

266-N Female Connector
Tube O.D. Pipe Thread A B C D E
1/4 1/8 1-9/64 15/16 9/16 7/32 9/16
1/4 1/4 1-5/16 1-7/64 11/16 7/32 47/64
3/8 1/4 1-27/64 1-7/32 11/16 11/32 3/4
3/8 3/8 1-27/64 1-7/32 13/16 11/32 3/4

265-N Elbow Union
Tube O.D. A B D E
1/4 1-1/64 13/16 7/32 3/8
3/8 1-5/32 15/16 11/32 7/16

268-N Male Connector
Tube O.D. Pipe Thd. A B C D E
1/4 1/8 1-13/64 1 5/8 15/64 15/32
1/4 1/4 1-25/64 1-3/16 5/8 15/64 11/16
3/8 1/4 1-17/32 1-21/64 13/16 5/16 19/32
3/8 3/8 1-19/32 1-25/64 13/16 11/32 19/32

269-N Male Elbow
Tube O.D. Pipe Thd. A B D E F
1/4 1/8 1-1/64 13/16 7/32 3/8 27/32
1/4 1/4 1-1/64 13/16 13/32 3/8 1-1/32
3/8 1/4 1-9/64 15/16 5/16 7/16 1-1/32
3/8 3/8 1-9/64 15/16 11/32 7/16 1-3/32

271-N Male Run Tee
Tube O.D. Pipe Thd. A B D E F
1/4 1/8 59/64 21/32 7/32 15/32 3/4
1/4 1/4 59/64 13/32 7/32 15/32 29/32
3/8 1/4 1-5/32 61/64 5/16 19/32 1-1/16
3/8 3/8 1-3/16 61/64 23/64 19/32 1-7/64

272-N Male Branch Tee
Tube O.D. Pipe Thd. A B D E F
1/4 1/8 15/16 47/64 7/32 15/32 3/4
1/4 1/4 15/16 47/64 7/32 15/32 13/16
3/8 1/4 1-11/64 31/32 5/16 19/32 1-1/16
3/8 3/8 1-11/64 31/32 23/64 19/32 1-7/64

282-N Bulkhead Union
Tube O.D. Pipe Thd. A B C D E F G
1/4 7/16-20 1-57/64 1-31/64 5/8 7/32 15/32 5/8 5/16
3/8 5/8-20 2-1/4 1-53/64 13/16 11/32 19/32 7/8 3/8
*Use 259N inserts w/all Poly-Flo tubing connections. Not needed w/ Nylo-Seal tubing.
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Reviews

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Some new instruments I installed required access to the pitot and static lines but did not come with a fitting to connect the tubing. These fittings fit perfectly and attached securely to the tubes.

Michael G
April 23, 2020

Duane A
June 26, 2018

Q&A

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Please note, Aircraft Spruce Australia'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 Australia 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: I assume since these are pipe thread that no pipe dope or tape is needed (or desired) on the threads, right?

One end is pipe thread, and will seal without teflon tape or compound.

Q: Which tap would I use for 268-no6x04?

You would need a tap for 1/8th NPT.

Q: What is the difference between this part which is part number 268-N04X02 and another fitting which is part number 12-05471

They are just from different manufacturers, they will both work with nyloseal.

Q: Will NYLO-SEAL FITTING 268-N04X02 screw into standard Altimeter, VSI, and Airspeed indicators at its input

If those instruments have 1/8 npt ports on them yes. That is the most common size.

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