4720-00-821-4721

Find complete technical information, availability, and procurement data for: 4720-00-821-4721
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Federal Supply Group

Pipe, Tubing, Hose, and Fittings

Federal Supply Classification

4720 Hose and Flexible Tubing

National Stock Number

4720-00-821-4721

Item Name Code

20311

Assigment Date

01/01/1962 (64 years ago)

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

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: 1.375 inches nominal
Temp Rating: -40.0 fahrenheit and 300.0 fahrenheit single response
Outside Diameter: 1.704 inches nominal
Minimum Inside Bending Radius: 9.000 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: electrostatic discharge capability
Thread Quantity Per Inch: 12 1st end
Thread Quantity Per Inch: 12 2nd end
Burst Test Pressure: 2000.0 pounds per square inch
Layer Composition And Location: 1st layer braided corrosion resistant steel wire and outer layer braided corrosion resistant steel wire
Maximum Operating Pressure: 250.0 pounds per square inch
Nominal Thread Size: 1.875 inches 1st end
Nominal Thread Size: 1.875 inches 2nd end
Seat Angle: 37.0 degrees 1st end
Seat Angle: 37.0 degrees 2nd end
Hydrostatic Test Pressure: 800.0 pounds per square inch
Flow Angle: 45.0 degrees 2nd end
Outer Covering Environmental Protection: corrosion resistant
Inside Surface Condition: smooth
Measuring Method And Length: 33.000 inches nominal working
Media For Which Designed: fuel/oil, hydrocarbon single response
Thread Series Designator: un 1st end
Thread Series Designator: un 2nd 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
36B0700024F0330	Nonmetallic Hose Assembly
601001-24-0330	Nonmetallic Hose Assembly

FAQs

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

What is the FSCG of the NSN 4720-00-821-4721?

The FSCG of the NSN 4720-00-821-4721 is 4720

Does NSN 4720-00-821-4721 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 4720-00-821-4721 contain precious materials?

Precious metal content is unknown

Does NSN 4720-00-821-4721 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 4720-00-821-4721 was assigned to the Federal Catalog?

It was assigned 64 years ago, on Mon, Jan 1, 1962