S82903

View detailed technical data, stock status, and sourcing information for: S82903
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Federal Supply Group

Pipe, Tubing, Hose, and Fittings

Federal Supply Classification

4720 Hose and Flexible Tubing

National Stock Number

4720-00-313-4640

Item Name Code

17972

Assigment Date

01/01/1963 (63 years ago)

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

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: 3a 2nd end
Thread Class: 3b 1st end
Thread Direction: right-hand 1st end
Thread Direction: right-hand 2nd end
Inside Diameter: 0.305 inches nominal
Temp Rating: 500.0 fahrenheit single response
Outside Diameter: 0.375 inches nominal
Inner Conveying Tube Style: helical open-pitch corrugated
Angle Between Rigid Elbow Fittings In Deg: 90.0
Connection Style: swivel nut flare 1st end
Connection Style: flared 2nd end
End Connection Design: elbow 2nd end
End Connection Design: straight 1st end
Connection Type: threaded external tube 2nd end
Connection Type: threaded internal tube 1st end
Layer Composition And Location: 1st layer braided aluminum alloy wire
Layer Composition And Location: outer layer braided steel wire
Maximum Operating Pressure: 1000.0 pounds per square inch
Nominal Thread Size: 0.438 inches 2nd end
Nominal Thread Size: 0.562 inches 1st end
Seat Angle: 37.0 degrees 1st end
Seat Angle: 37.0 degrees 2nd end
Hydrostatic Test Pressure: 2000.0 pounds per square inch
Flow Angle: 84.0 degrees 2nd end
Outer Covering Environmental Protection: corrosion resistant
Measuring Method And Length: 11.584 inches nominal excluding end fittings
Thread Series Designator: unf 2nd end
Thread Series Designator: unjf 1st end
Fsc Application Data: gas turbines and jet engines,aircraft,and components

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
2840-00-037-3984	No Name Available	01/01/1963

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
353-024-2013	Metallic Hose Assembly
9493170	Metallic Hose Assembly
S82903	Metallic Hose Assembly

FAQs

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

What is the FSCG of the NSN 4720-00-313-4640?

The FSCG of the NSN 4720-00-313-4640 is 4720

Does the NSN 4720-00-313-4640 have a Schedule B code assigned?

Yes, the Schedule B code is 7306901000

Does NSN 4720-00-313-4640 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 4720-00-313-4640 contain precious materials?

Precious metal content is unknown

Does NSN 4720-00-313-4640 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 4720-00-313-4640 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963