4720-00-789-6578

Find complete technical information, availability, and procurement data for: 4720-00-789-6578
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Federal Supply Group

Pipe, Tubing, Hose, and Fittings

Federal Supply Classification

4720 Hose and Flexible Tubing

National Stock Number

4720-00-789-6578

Item Name Code

20311

Assigment Date

01/01/1963 (63 years ago)

1.250 inches nominal inside diameter, 1.810 inches nominal outside diameter, round cross-sectional shape style, -40.0 fahrenheit and 200.0 fahrenheit single response temp rating, 0.312 inches nominal 1st end flange thickness

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: 1.250 inches nominal
Temp Rating: -40.0 fahrenheit and 200.0 fahrenheit single response
Flange Thickness: 0.312 inches nominal 1st end
Outside Diameter: 1.810 inches nominal
Minimum Inside Bending Radius: 16.500 inches
Angle Between Rigid Elbow Fittings In Deg: 285.0
Flange Outside Diameter: 2.000 inches nominal 1st end
Connection Style: plain w/ gasket groove (sae flanged head) 1st end
End Flange Construction: solid 1st end
End Connection Design: straight 1st end
Connection Type: plain face flange 1st end
Burst Test Pressure: 2500.0 pounds per square inch
Layer Composition And Location: 1st layer braided steel wire and outer layer molded rubber, chloroprene
Maximum Operating Pressure: 900.0 pounds per square inch
Hydrostatic Test Pressure: 1250.0 pounds per square inch
Outer Covering Environmental Protection: oil resistant and weatherproof
Inside Surface Condition: smooth
Measuring Method And Length: 27.000 inches nominal overall
Flange Style: round w/ out bolt holes 1st end
Special Features: 2.500 in. drop lg of elbow on 1st end and 4.750in. lg drop of elbow on 2nd end
Media For Which Designed: hydraulic fluid, water base and 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
0644449	Nonmetallic Hose Assembly
0644449-1	Nonmetallic Hose Assembly
639514	Nonmetallic Hose Assembly
644449	Nonmetallic Hose Assembly
70644449	Nonmetallic Hose Assembly
FG241NNN0270-285	Nonmetallic Hose Assembly

FAQs

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

What is the FSCG of the NSN 4720-00-789-6578?

The FSCG of the NSN 4720-00-789-6578 is 4720

Does NSN 4720-00-789-6578 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 4720-00-789-6578 contain precious materials?

Precious metal content is unknown

Does NSN 4720-00-789-6578 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 4720-00-789-6578 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963