C304639-1

View detailed technical data, stock status, and sourcing information for: C304639-1
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Federal Supply Group

Pipe, Tubing, Hose, and Fittings

Federal Supply Classification

4710 Tube and Rigid Tubing Pipe

National Stock Number

4710-00-571-9349

Item Name Code

21989

Assigment Date

12/08/1974 (51 years ago)

A deformable material which prevents the passage of matter through the joint formed when two faces are joined. It may be metallic or nonmetallic, lubricated or impregnated, solid or hollow cross section. It may be made to any predetermined dimension and shape. Excludes:flat disks, items made of felt material and items having joints. For round metal and plastic items with an aperture and a solid rectangular cross section, see washer, flat; shim; bearing, washer, thrust; and spacer ring. Excludes:disk, valve; seal, nonmetallic angle; seal, nonmetallic channel; seal, nonmetallic special shaped section; shielding gasket, electronic; and ring, sealing jar.

right-hand single end thread direction, 0.028 inches nominal wall thickness, 20.312 inches nominal overall length, 1 single end mating end quantity, 3a single 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.

Wall Thickness: 0.028 inches nominal
Thread Class: 3a single end
Thread Direction: right-hand single end
Overall Length: 20.312 inches nominal
Mating End Quantity: 1 single end
Tubing Material: unable to decode
End Connection Style: flared single end
Seat Angle In Deg: 33.0 single end
Design Form: straight
Tube Outside Diameter: 0.250 inches nominal
Nominal Thread Size: 0.438 inches single end
Material: unable to decode
Thread Series Designator: unf single 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
C304639-1	Metal Tube Assembly

FAQs

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

What is the FSCG of the NSN 4710-00-571-9349?

The FSCG of the NSN 4710-00-571-9349 is 4710

Does the NSN 4710-00-571-9349 have a Schedule B code assigned?

Yes, the Schedule B code is 8302494500

Does NSN 4710-00-571-9349 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 4710-00-571-9349 contain precious materials?

Item does not contain precious metal.

Does NSN 4710-00-571-9349 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 4710-00-571-9349 was assigned to the Federal Catalog?

It was assigned 51 years ago, on Sun, Dec 8, 1974