National Stock Number
Tube Coupling Nut — Fittings and Specialties; Hose, Pipe, and Tube (FSC 4730) · Part No. SAE-AS18280
| National Stock Number | 4730-01-074-6036 |
|---|---|
| Item name | Tube Coupling Nut |
| FLIS item name | Nut, Tube Coupling |
| Part number (commercial reference) | SAE-AS18280 |
| Alternate references | MS21921-6J; AS21921-6J; MS21921-6C; AS18280; AS21921; 7117X6 |
| Unit of issue | EA |
| NIIN | 010746036 |
| NIIN assigned by | United States (NCB code 01) |
| Federal Supply Class (FSC) | 4730 — Fittings and Specialties; Hose, Pipe, and Tube |
| Federal Supply Group (FSG) | 47 — Pipe, Tubing, Hose, and Fittings |
| Unit price (USD) | $10.52 |
| 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 tube coupling nut. Confirm controlling dimensions against your drawing or standard sheet before ordering.
| Thread Quantity Per Inch | 18 |
|---|---|
| Thread Class | 3B |
| Material | Steel Comp 304 Overall |
| Surface Treatment | Passivate Overall |
Fluid-line connection hardware including tube and pipe fittings, adapters, elbows, tees, unions, couplings, nipples, and bushings used to join, branch, and terminate hose, pipe, and tube.
A 304 stainless steel tube coupling nut with 0.562-inch nominal thread.
Price in context. Across the 317 items we currently stock in FSC 4730 (Fittings and Specialties; Hose, Pipe, and Tube), published unit prices run from $0.38 to $11,915.64. At $10.52, this item sits well below the class median of $26.28 — commodity hardware usually bought in volume.
Typical applications. Hydraulic, pneumatic, fuel, and coolant lines on vehicles, aircraft, and ground support equipment.
Applicable standards. MS/AN flare and flareless fittings, SAE J514, MIL-DTL; steel, stainless, brass, and aluminum.
NSN 4730-01-074-6036 is supplied by Quick Brown Fox Solutions as a stock resale item. For custom-manufactured or prototype parts to your print, see our U.S.-based CNC machining services.
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.
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