4720-01-066-4266

Find complete technical information, availability, and procurement data for: 4720-01-066-4266
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Federal Supply Group

Pipe, Tubing, Hose, and Fittings

Federal Supply Classification

4720 Hose and Flexible Tubing

National Stock Number

4720-01-066-4266

Item Name Code

20311

Assigment Date

10/10/1978 (47 years ago)

3b 1st end thread class, 3b 2nd end thread class, right-hand 1st end thread direction, round cross-sectional shape style, right-hand 2nd end thread direction

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Cross-Sectional Shape Style: round
Thread Class: 3b 1st end
Thread Class: 3b 2nd end
Thread Direction: right-hand 1st end
Thread Direction: right-hand 2nd end
Inside Diameter: 0.250 inches minimum
Temp Rating: 275.0 fahrenheit single response
Outside Diameter: 0.450 inches maximum
Minimum Inside Bending Radius: 0.500 inches
Connection Style: swivel nut flare 1st end
Connection Style: swivel nut flare 2nd end
End Connection Design: elbow 2nd end
End Connection Design: straight 1st end
Connection Type: threaded internal tube 1st end
Connection Type: threaded internal tube 2nd end
Features Provided: nuts drilled for lockwire
Burst Test Pressure: 1000.0 pounds per square inch
Layer Composition And Location: outer layer braided polyamide cord
Maximum Operating Pressure: 250.0 pounds per square inch
Nominal Thread Size: 0.438 inches 1st end
Nominal Thread Size: 0.438 inches 2nd end
Seat Angle: 37.0 degrees 1st end
Seat Angle: 37.0 degrees 2nd end
Hydrostatic Test Pressure: 500.0 pounds per square inch
Flow Angle: 90.0 degrees 2nd end
Inside Surface Condition: convoluted
Measuring Method And Length: 31.000 inches nominal working
Thread Series Designator: unjf 2nd end
Thread Series Designator: unjf 1st end

Related Parts

This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:

Part Number	Name
C7585B04-0310H	Nonmetallic Hose Assembly
S79904-0310H	Nonmetallic Hose Assembly

FAQs

Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.

What is the FSCG of the NSN 4720-01-066-4266?

The FSCG of the NSN 4720-01-066-4266 is 4720

Does NSN 4720-01-066-4266 require demilitarization?

Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.

Does NSN 4720-01-066-4266 contain precious materials?

Precious metal content is unknown

Does NSN 4720-01-066-4266 contain hazardous materials?

Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

When the NSN 4720-01-066-4266 was assigned to the Federal Catalog?

It was assigned 47 years ago, on Tue, Oct 10, 1978