4720-00-473-4689

Find complete technical information, availability, and procurement data for: 4720-00-473-4689
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Federal Supply Group

Pipe, Tubing, Hose, and Fittings

Federal Supply Classification

4720 Hose and Flexible Tubing

National Stock Number

4720-00-473-4689

Item Name Code

20311

Assigment Date

01/01/1961 (65 years ago)

1.750 inches nominal inside diameter, round cross-sectional shape style, 2.500 inches nominal outside diameter, 4.594 inches nominal 1st end bolt circle diameter, 180.0 fahrenheit single response temp rating

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
Inside Diameter: 1.750 inches nominal
Temp Rating: 180.0 fahrenheit single response
Bolt Circle Diameter: 4.594 inches nominal 1st end
Outside Diameter: 2.500 inches nominal
Bolt Hole Quantity: 6 1st end
Connection Style: recessed 1st end
Bolt Hole Diameter: 0.562 inches nominal 1st end
End Flange Construction: solid 1st end
End Connection Design: straight 1st end
End Fitting Component And Material: complete fitting copper all ends
Connection Type: recessed flange 1st end
Layer Composition And Location: 1st layer molded rubber, synthetic and 2nd layer rubber impregnated fabric and 3rd layer rubber impregnated fabric and 4th layer rubber impregnated fabric and outer layer rubber impregnated fabric
Maximum Operating Pressure: 150.0 pounds per square inch
Outer Covering Environmental Protection: oil resistant
Inside Surface Condition: smooth
Measuring Method And Length: 12.750 inches nominal overall
Special Features: inner conveying tube material-rubber, synthetic
Media For Which Designed: fuel/oil, hydrocarbon single response

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
2473-125PC26T028	Nonmetallic Hose Assembly
2473-152PC17T019	Nonmetallic Hose Assembly
2473-289PC14T016	Nonmetallic Hose Assembly
2473-91PC20T022	Nonmetallic Hose Assembly

FAQs

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

What is the FSCG of the NSN 4720-00-473-4689?

The FSCG of the NSN 4720-00-473-4689 is 4720

Does NSN 4720-00-473-4689 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 4720-00-473-4689 contain precious materials?

Precious metal content is unknown

Does NSN 4720-00-473-4689 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 4720-00-473-4689 was assigned to the Federal Catalog?

It was assigned 65 years ago, on Sun, Jan 1, 1961