Part Number
Air Duct Hose · NAS (National Aerospace Standard) · NSN 4720-00-576-9799
| Part number | NAS520-8-12 |
|---|---|
| Specification family | NAS (National Aerospace Standard) |
| Item name | Air Duct Hose |
| Alternate references | NAS522; NAS520-NAS520-12-NAS522; NAS520 |
| Unit of issue | EA |
| Cross-referenced NSN | 4720-00-576-9799 |
| Federal Supply Class (FSC) | 4720 — Hose and Tubing, Flexible |
| Unit price (USD) | $8.76 |
| Country of origin | Türkiye (Turkey) |
| Lead time | Within 90 days of order |
| Minimum order | May apply — confirm on quote |
| Documentation | Source documentation provided on all orders |
Characteristics decoded from the federal cataloging record for this air duct hose. Confirm controlling dimensions against your drawing or standard sheet before ordering.
| Material | Rubber Synthetic All Plies And Cotton All Plies |
|---|---|
| Inside Diameter | 1.000 Inches Nominal First End |
Flexible hose and tubing assemblies for conveying fluids and gases, including hydraulic, fuel, coolant, and pneumatic hose.
A flexible air duct hose.
Reading the part number. NAS520-8-12 breaks down as NAS520 — the National Aerospace Standard that fixes the part's design — plus the dash/suffix code 8-12, which selects the exact size, material, or finish variant from the tables on that standard. Two parts sharing the NAS520 base are the same design in different variants.
Price in context. Across the 18 items we currently stock in FSC 4720 (Hose and Tubing, Flexible), published unit prices run from $8.76 to $17,523.00. At $8.76, this item sits well below the class median of $332.94 — commodity hardware usually bought in volume.
Who orders NAS520-8-12. Aircraft owners and MRO shops replacing standard hardware, machine shops and OEMs filling a bill of materials, and government contractors sourcing against NSN 4720-00-576-9799. You can order by part number or by stock number — it is the same item, the same published price, and the same quote form.
Applicable standards. MIL-DTL / SAE 100R hydraulic hose standards.
Need this part modified, or a similar part made to your print? See our U.S.-based CNC machining services and aerospace machining capability.
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.
NSN 4720-00-585-7306
NSN 4720-00-611-5862
NSN 4720-00-729-5334
NSN 4720-00-883-9038
NSN 4720-01-052-6930
NSN 4720-01-131-3115
NSN 4720-01-158-3249
NSN 4720-01-355-7653
NSN 4720-01-436-8563
NSN 4720-01-510-3806
NSN 4720-00-160-9136
