4720-00-921-4551

Find complete technical information, availability, and procurement data for: 4720-00-921-4551
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Federal Supply Group

Pipe, Tubing, Hose, and Fittings

Federal Supply Classification

4720 Hose and Flexible Tubing

National Stock Number

4720-00-921-4551

Item Name Code

20311

Assigment Date

12/17/1965 (60 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, 3b 1st end thread class, 3b 2nd end thread class, right-hand 1st end thread direction, right-hand 2nd end thread direction

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: 0.188 inches nominal
Temp Rating: -67.0 fahrenheit and 450.0 fahrenheit single response
Outside Diameter: 0.312 inches nominal
Minimum Inside Bending Radius: 2.000 inches
Exterior Color: natural
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
Burst Test Pressure: 12000.0 pounds per square inch
Layer Composition And Location: outer layer braided corrosion resistant steel wire
Maximum Operating Pressure: 1500.0 pounds per square inch
Nominal Thread Size: 0.438 inches 1st end
Nominal Thread Size: 0.438 inches 2nd end
Seat Angle: 37.0 degrees 1st end
Seat Angle: 37.0 degrees 2nd end
Hydrostatic Test Pressure: 3000.0 pounds per square inch
Flow Angle: 45.0 degrees 2nd end
Outer Covering Environmental Protection: corrosion resistant
Vacuum In Torr: 50.8
Inside Surface Condition: smooth
Measuring Method And Length: 66.750 inches nominal working
Media For Which Designed: fuel/oil, hydrocarbon single response
Supplementary Features: this item has been reviewed for asbestos material;the current approved sources,50599 and 78570 have indicated their part number contained asbestos prior to 1984,they continue to manufacture the same part number without asbestos material after 1984
Thread Series Designator: unf 1st end
Thread Series Designator: unf 2nd end
Nondefinitive Spec/Std Data: 1 class and 4 size

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
4720-00-901-3027	No Name Available	07/01/1981

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
032504E0666F	Nonmetallic Hose Assembly
13000104-0666F	Nonmetallic Hose Assembly
13000104-0666S	Nonmetallic Hose Assembly
63000104-0666F	Nonmetallic Hose Assembly
SR3805FN4-0666	Nonmetallic Hose Assembly
SR50205CC4-0666	Nonmetallic Hose Assembly
TR50205CC4-0666	Nonmetallic Hose Assembly

FAQs

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

What is the FSCG of the NSN 4720-00-921-4551?

The FSCG of the NSN 4720-00-921-4551 is 4720

Does NSN 4720-00-921-4551 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 4720-00-921-4551 contain precious materials?

Precious metal content is unknown

Does NSN 4720-00-921-4551 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 4720-00-921-4551 was assigned to the Federal Catalog?

It was assigned 60 years ago, on Fri, Dec 17, 1965