4684449-T/F90

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Federal Supply Group

Pipe, Tubing, Hose, and Fittings

Federal Supply Classification

4730 Hose, Pipe, Tube, Lubrication and Railing Fittings

National Stock Number

4730-01-318-5435

Item Name Code

03798

Assigment Date

04/19/1990 (36 years ago)

An item solid or split into halves, having a threaded or unthreaded hole for the purpose of connecting or retaining a pipe, tube, or hose fitting. The face of the flange may be smooth, grooved, or serrated and may be drilled for connecting bolts or studs. If the item is unthreaded, the pipe or tube may be retained by welding, brazing, compression, or the like. Excludes:flange, pipe, blind; ferrule, grooved clamp coupling; and adapter (as modified).

0.500 inches nominal socket depth, 3.500 inches nominal flange diameter, 2.375 inches nominal bolt circle diameter, 0.380 inches nominal thickness, 0.852 inches nominal socket diameter

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Bolt Circle Diameter: 2.375 inches nominal
Flange Diameter: 3.500 inches nominal
Thickness: 0.380 inches nominal
Socket Depth: 0.500 inches nominal
Socket Diameter: 0.852 inches nominal
Nominal Pipe Size For Which Designed: 0.500 inches
Bolt Hole Quantity: 4
Bolt Hole Diameter: 0.562 inches nominal
Raised Face Height: 0.060 inches nominal
Raised Face Diameter: 1.380 inches nominal
Neck Height: 0.880 inches nominal
Flange Section Style: raised face, socket neck
Face Seating Surface Condition: machined
Maximum Operating Pressure And Media For Which Designed: 150.0 pounds per square inch water
Material: nickel alloy
Surface Treatment: chromate
Style Designator: round, one bolt hole circle

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
2621-228-02 PC148	Pipe Flange
4684449-T/F90	Pipe Flange
4687676 PC148	Pipe Flange

FAQs

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

What is the FSCG of the NSN 4730-01-318-5435?

The FSCG of the NSN 4730-01-318-5435 is 4730

Does the NSN 4730-01-318-5435 have a Schedule B code assigned?

Yes, the Schedule B code is 7507200000

Does NSN 4730-01-318-5435 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 4730-01-318-5435 contain precious materials?

Item does not contain precious metal.

Does NSN 4730-01-318-5435 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 4730-01-318-5435 was assigned to the Federal Catalog?

It was assigned 36 years ago, on Thu, Apr 19, 1990