4730-01-220-4184

Find complete technical information, availability, and procurement data for: 4730-01-220-4184
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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

4730-01-220-4184

Item Name Code

20933

Assigment Date

11/13/1985 (40 years ago)

A relatively thin metallic item, having a concave or cupped contour, designed to effect its own seal by compression against the circumference of a hole. It is used as a blowout plug in boilers, engines, and the like to relieve the pressure created by the expansion of fluids caused by heat or freezing.

right-hand first connection thread direction, 7/16-20 first connection thread size designator, 0.270 inches nominal overall length, 0.4375 inches nominal diameter, 3a first connection thread class

Product Characteristics

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

Thread Class: 3a first connection
Thread Direction: right-hand first connection
Overall Length: 0.270 inches nominal
Diameter: 0.4375 inches nominal
Thread Size Designator: 7/16-20 first connection
Filter Material: unable to decode
Design Type: straight
End Connection Type: threaded male, flareless tube first connection
End Connection Type: unthreaded female second connection
End Connection Similarity: not identical
Thread Series: unf first connection
Strainer Type And Quantity: 1 filter
Special Features: u/o f100-pw-220 eng

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
2663881-4	Fluid Flow Restrictor Unit

FAQs

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

What is the FSCG of the NSN 4730-01-220-4184?

The FSCG of the NSN 4730-01-220-4184 is 4730

Does NSN 4730-01-220-4184 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 4730-01-220-4184 contain precious materials?

Item does not contain precious metal.

Does NSN 4730-01-220-4184 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 4730-01-220-4184 was assigned to the Federal Catalog?

It was assigned 40 years ago, on Wed, Nov 13, 1985