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American Aviation Parts datum · avionics
SEM

Nut And Sleeve Assembly / 1/4 inch tube outside diameter. 261-N04

P/N 261-N04
NE — New Condition disclosed

Condition NE — Condition disclosed — is shown up front on this listing, along with the exact price, current availability, and what certification paperwork ships with the part, so you can confirm fit and airworthiness before you buy. Full specifications and answers to common questions are below.

Stocked & sold by AAP

What does “New” condition mean?

$0.87
In stock
Price and availability checked Oct 27, 2026 MST

UOM EA · MOQ 1
Paperwork shown up front · 30-day returns · secure checkout
Request certification documents (8130-3 / EASA Form 1 / C of C)

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Description

NUT AND SLEEVE ASSEMBLY / 1/4 inch tube outside diameter. 261-N04NYLO-Seal Nut & Sleeve Assembly | Fits 1/4-inch Tubing

NYLO-Seal Nylon Nut & Sleeve Assemblies have excellent resistance to acids, alkalis, dilute mineral acids, most organic acids, petroleum oils and greases, and photographic solutions. Installation time is reduced with NYLO-Seal fittings when compared to regular compression or flare fittings. Also, stress on the tubing is relieved during installation as the nut revolves around the sleeve as it is being tightened, which prevents torque from being transmitted to the tubing, to provide an excellent seal and ensures reliability. NYLO-Seal Nut & Sleeves are made of molded nylon to be strong and resistant to abuse, and the acetal copolymer sleeves provide maximum performance. They can continuously operate at temperatures of 200°F and intermittently at temperature as high as 250°F. NYLO-Seal fittings are excellent for instrument, lubricant, air, hydrocarbon fuel, oil coolant, low pressure hydraulic lines, laboratory, and chemical applications.


These Nylon Nut & Sleeve Assembly (Alternate Part# 261N04) couples together most types of thermo plastic tubing having an outside diameter of 1/4 inch.

  • Excellent resistance to chemicals
  • Reduces installation time
  • Eliminates stress on plastic tubing during installation
  • Exceptionally strong and resistant to abuse
  • Continual Operation at temperatures as high as 200°F
  • Couples most types of thermoplastic tubing
  • Excellent for instrument, lubricant, air, hydrocarbon fuel, oil coolant, low pressure hydraulic lines, laboratory, and chemical applications

Product Codes

Mfr Part No:261-N04
ECCN:EAR99
SCHEDULE B CODE:3926.90.9887

Tube Size: Fits 1/4 in Tubing (261N04) Maximum Working Pressure: 250 PSI Materials: Molded Nylon Bodies and Nuts. Acetal Copolymer Sleeves (Celcon®) Compatible Tubing: NYLO-SEAL fittings can be used to couple to most types of thermoplastic tubing

Specifications

Part number261-N04
ManufacturerSEM
ConditionNE
AirworthinessCondition disclosed
Country of origin—
Lead time days

Frequently asked

Does the Nut And Sleeve Assembly / 1/4 inch tube outside diameter. 261-N04 include certification paperwork?

This item is supplied as "Condition disclosed" rather than with full 8130-3 traceability — normal for some condition codes, and it does not mean the part is unusable, only that the paperwork profile differs. Check the listing for exactly what documentation is included, and request any available records before you purchase if your installation requires them.

What condition is this part?

This part is listed in condition NE — Condition disclosed. Condition codes describe how a part reached its current state (for example new, overhauled, serviceable, repaired, or as-removed) and directly affect what paperwork ships with it and how it should be installed. See the Glossary for the full definition of every condition code we use.

How fast does it ship?

This item is in stock and ships promptly, usually the same or next business day once your order and payment are confirmed. Exact transit time depends on your shipping method and destination and is shown at checkout. If your aircraft is grounded, AOG expedited handling is available on request — no phone tree required.

Can I return it?

You may return this item within 30 days of delivery if it is unopened, uninstalled, and in its original packaging. Items that have been installed, powered on, opened hazmat, or separated from an attached 8130-3 tag are non-returnable because their airworthiness status can no longer be confirmed once removed from the part. See our Returns policy for the full process.

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