750189-317

View detailed technical data, stock status, and sourcing information for: 750189-317
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Federal Supply Group

Pipe, Tubing, Hose, and Fittings

Federal Supply Classification

4720 Hose and Flexible Tubing

National Stock Number

4720-01-331-8721

Item Name Code

20311

Assigment Date

12/29/1990 (35 years ago)

3b 1st end thread class, 0.415 inches nominal inside diameter, round cross-sectional shape style, -65.0 fahrenheit and 300.0 fahrenheit single response temp rating, right-hand 1st 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 Direction: right-hand 1st end
Inside Diameter: 0.415 inches nominal
Temp Rating: -65.0 fahrenheit and 300.0 fahrenheit single response
Outside Diameter: 0.672 inches nominal
Minimum Inside Bending Radius: 3.500 inches
Connection Style: swivel nut flare 1st end
End Connection Design: straight 1st end
Connection Type: threaded internal tube 1st end
Features Provided: reusable end fittings
Burst Test Pressure: 5000.0 pounds per square inch
Layer Composition And Location: 1st layer braided corrosion resistant steel wire, partial coverage and outer layer braided corrosion resistant steel wire
Maximum Operating Pressure: 1000.0 pounds per square inch
Nominal Thread Size: 0.750 inches 1st end
Seat Angle: 37.0 degrees 1st end
Hydrostatic Test Pressure: 2500.0 pounds per square inch
Outer Covering Environmental Protection: alcohol resistant and fuel resistant and oil resistant and ethylene glycol resistant and solvent resistant
Inside Surface Condition: smooth
Measuring Method And Length: 11.500 inches nominal overall
Special Features: hose assembly has a marker strap ms3368-3-oc
Media For Which Designed: fuel/oil, hydrocarbon single response
Thread Series Designator: unjf 1st end

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
750189-317	Nonmetallic Hose Assembly
A7441-1	Nonmetallic Hose Assembly

FAQs

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

What is the FSCG of the NSN 4720-01-331-8721?

The FSCG of the NSN 4720-01-331-8721 is 4720

Does NSN 4720-01-331-8721 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 4720-01-331-8721 contain precious materials?

Precious metal content is unknown

Does NSN 4720-01-331-8721 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 4720-01-331-8721 was assigned to the Federal Catalog?

It was assigned 35 years ago, on Sat, Dec 29, 1990