4720-01-449-3568

Find complete technical information, availability, and procurement data for: 4720-01-449-3568
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Federal Supply Group

Pipe, Tubing, Hose, and Fittings

Federal Supply Classification

4720 Hose and Flexible Tubing

National Stock Number

4720-01-449-3568

Item Name Code

20311

Assigment Date

09/29/1997 (28 years ago)

A replaceable item designed to provide a stationary seating surface for a mating, moveable item such as a valve disk or the like. The body may have a flange of various shapes. For diesel and gasoline reciprocating engines, see insert, engine valve seat.

3b 2nd end thread class, round cross-sectional shape style, right-hand 2nd end thread direction, right-hand 1st end thread direction, 3b 1st end thread class

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: 0.375 inches nominal
Temp Rating: -55.0 fahrenheit and 300.0 fahrenheit single response
Outside Diameter: 0.620 inches nominal
Exterior Color: blue
Angle Between Rigid Elbow Fittings In Deg: 0.0
End Item Identification: 2350-01-305-0028 cage 19200
Connection Style: swivel nut flare 1st end
Connection Style: swivel nut flare 2nd end
End Connection Design: straight 1st end
End Connection Design: straight 2nd end
Connection Type: threaded internal tube 1st end
Connection Type: threaded internal tube 2nd end
Features Provided: reusable end fittings
Burst Test Pressure: 1000.0 pounds per square inch
Layer Composition And Location: 2nd layer braided textile yarn and outer layer molded rubber, synthetic
Maximum Operating Pressure: 250.0 pounds per square inch
Nominal Thread Size: 0.562 inches 2nd end
Nominal Thread Size: 0.625 inches 1st end
Seat Angle: 45.0 degrees 1st end
Seat Angle: 45.0 degrees 2nd end
Inside Surface Condition: smooth
Measuring Method And Length: 2.120 inches nominal working
Media For Which Designed: fuel/oil, hydrocarbon single response
Thread Series Designator: unf 1st end
Thread Series Designator: unf 2nd 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
12390054-1	Nonmetallic Hose Assembly

FAQs

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

What is the FSCG of the NSN 4720-01-449-3568?

The FSCG of the NSN 4720-01-449-3568 is 4720

Does NSN 4720-01-449-3568 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 4720-01-449-3568 contain precious materials?

Item does not contain precious metal.

Does NSN 4720-01-449-3568 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 4720-01-449-3568 was assigned to the Federal Catalog?

It was assigned 28 years ago, on Mon, Sep 29, 1997