Part Number
Tube Coupling Nut · AS (SAE Aerospace Standard) · 10 stocked variants
Reading the part number. SAE-AS18280 refers to SAE AS18280, an SAE Aerospace Standard — it fixes the part's design. Items cataloged under the spec number rather than a dash-numbered part number are procured to the specification; the NSN record pins down which specific item this is.
Because SAE-AS18280 is a specification-level reference, each conforming variant carries its own National Stock Number. The table below lists every variant we stock, with its decoded characteristics and published price — open the NSN record to see the full specification and order that exact item.
| NSN | Item | Key characteristics | Unit price |
|---|---|---|---|
| 4730-00-191-6850 | Tube Coupling Nut | Material: Aluminum Alloy 2024 Overall Or Aluminum Alloy 7075 Overall; Surface Treatment: Anodize Overall | $3.51 |
| 4730-00-289-6089 | Boss Nipple | Material: Aluminum Alloy 2024 Overall Or Aluminum Alloy 2014 Overall; Surface Treatment: Anodize Overall | $12.27 |
| 4730-00-472-4090 | Tube To Boss Straight Adapter | Material: Aluminum Alloy 7075 Overall; Surface Treatment: Anodize Overall | $35.04 |
| 4730-00-475-4627 | Tube Tee | Material: Aluminum Alloy 7075 Overall; Surface Treatment: Anodize Overall | $140.19 |
| 4730-00-640-1215 | Tube Elbow | Material: Aluminum Alloy 2014 Overall Or Aluminum Alloy 2024 Overall; Surface Treatment: Anodize Overall | $35.04 |
| 4730-00-810-4499 | Tube Coupling Nut | Material: 15-5 Ph Steel; Surface Treatment: Cadmium Overall | $17.52 |
| 4730-00-919-4651 | Tube Coupling Nut | Thread Quantity Per Inch: 20; Thread Class: 3B | $17.52 |
| 4730-01-074-6036 | Tube Coupling Nut | Thread Quantity Per Inch: 18; Thread Class: 3B | $10.52 |
| 4730-01-411-4002 | Tube Cap | Material: Aluminum Alloy 7075 Overall; Thread Series Designator: Unj Internal | $14.02 |
| 4730-01-543-0367 | Tube Coupling Nut | Material: Steel Corrosion Resisting Overall; Thread Quantity Per Inch: 16 | $35.04 |
Country of origin: Türkiye (Turkey). Turkey is a NATO ally and a normal-trade-relations partner of the United States, and Turkish-origin end items are eligible for a wide range of U.S. federal and DLA procurements.
TAA note: Turkey is not a Trade Agreements Act (TAA) designated country, so these items are generally not eligible for TAA-covered solicitations. They are offerable under the Buy American Act and many non-TAA DLA buys. Buyers are responsible for confirming the origin requirements of their specific solicitation.
Full country-of-origin and source documentation is provided with every order. Fulfillment within 90 days of order. Minimum order may apply.
Items are supplied as stock mil-spec / commercial hardware with source documentation and country-of-origin paperwork on every order. Parts are not supplied with an FAA Form 8130-3 airworthiness tag unless expressly stated on the quote. Buyers installing hardware on certificated aircraft are responsible for acceptance under their own maintenance program, repair station procedures, or owner/operator authority.
