4720-00-837-3947

Find complete technical information, availability, and procurement data for: 4720-00-837-3947
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Federal Supply Group

Pipe, Tubing, Hose, and Fittings

Federal Supply Classification

4720 Hose and Flexible Tubing

National Stock Number

4720-00-837-3947

Item Name Code

17972

Assigment Date

01/01/1962 (64 years ago)

3b 1st end thread class, 0.545 inches nominal outside diameter, round cross-sectional shape style, right-hand 1st end thread direction, 0.375 inches nominal inside 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: 0.375 inches nominal
Outside Diameter: 0.545 inches nominal
Minimum Inside Bending Radius: 7.875 inches
Inner Conveying Tube Style: annular close-pitch corrugated
Connection Style: swivel nut flare 1st end
End Connection Design: straight 1st end
Connection Type: threaded internal tube 1st end
Features Provided: identical ends
Layer Composition And Location: outer layer braided corrosion resistant steel wire
Maximum Operating Pressure: 800.0 pounds per square inch
Nominal Thread Size: 0.562 inches 1st end
Seat Angle: 37.0 degrees 1st end
Measuring Method And Length: 1.875 inches nominal overall
Thread Series Designator: unf 1st end

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
4720-00-840-6627	No Name Available	01/01/1962

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
S21906-00614	Metallic Hose Assembly
S21906-0614	Metallic Hose Assembly

FAQs

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

What is the FSCG of the NSN 4720-00-837-3947?

The FSCG of the NSN 4720-00-837-3947 is 4720

Does the NSN 4720-00-837-3947 have a Schedule B code assigned?

Yes, the Schedule B code is 7307225000

Does NSN 4720-00-837-3947 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 4720-00-837-3947 contain precious materials?

Precious metal content is unknown

Does NSN 4720-00-837-3947 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 4720-00-837-3947 was assigned to the Federal Catalog?

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