CGA E-1

View detailed technical data, stock status, and sourcing information for: CGA E-1
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Federal Supply Group

Pipe, Tubing, Hose, and Fittings

Federal Supply Classification

4720 Hose and Flexible Tubing

National Stock Number

4720-00-289-4253

Item Name Code

20311

Assigment Date

01/01/1961 (65 years ago)

A length of nonmetallic hose with fittings on one or both ends. For items without fittings, see hose, nonmetallic. Excludes:hose assembly, air duct; and hose assembly, air duct, air breathing.

round cross-sectional shape style, right-hand 1st end thread direction, 0.188 inches nominal inside diameter, 3b 1st end thread class, 0.437 inches nominal outside diameter

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 Direction: right-hand 1st end
Inside Diameter: 0.188 inches nominal
Outside Diameter: 0.437 inches nominal
Exterior Color: green
Connection Style: swivel nut, gas 1st end
End Connection Design: straight 1st end
End Fitting Component And Material: complete fitting copper alloy all ends
Connection Type: threaded internal tube 1st end
Thread Quantity Per Inch: 18 1st end
Burst Test Pressure: 600.0 pounds per square inch
Layer Composition And Location: outer layer molded rubber
Nominal Thread Size: 0.562 inches 1st end
Hydrostatic Test Pressure: 250.0 pounds per square inch
Inside Surface Condition: smooth
Measuring Method And Length: 600.000 inches nominal excluding end fittings
Seat Nominal Radius: 0.196 inches 1st end
Special Features: inner conveying tube material-rubber, buna-n or chloroprene
Special Markings: oxygen
Media For Which Designed: oxygen, gaseous single response
Thread Series Designator: unf 1st end
Specification/Standard Data: mil ms15011,pc. no. 4 and pc. no. 5 national std/spec
Nondefinitive Spec/Std Data: yle a style

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
CGA E-1	Nonmetallic Hose Assembly

FAQs

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

What is the FSCG of the NSN 4720-00-289-4253?

The FSCG of the NSN 4720-00-289-4253 is 4720

Does the NSN 4720-00-289-4253 have a Schedule B code assigned?

Yes, the Schedule B code is 4009320050

Does NSN 4720-00-289-4253 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 4720-00-289-4253 contain precious materials?

Precious metal content is unknown

Does NSN 4720-00-289-4253 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 4720-00-289-4253 was assigned to the Federal Catalog?

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