3307811-1

View detailed technical data, stock status, and sourcing information for: 3307811-1
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-418-4221

Item Name Code

05488

Assigment Date

08/25/1995 (30 years ago)

A valve designed to automatically release excessive pressures. It is actuated by static pressure upstream of the valve and is used as a safety valve or relief valve, and may be set to close at a predetermined pressure. It is not designed for regulation of continuously fluctuating loads. It may be inline or cartridge (manifold) design. Excludes:valve (1), relief, pressure and temperature.

automatic valve operation method, aircraft, eagle f-15 end item identification, threaded external pipe all ends connection type, right-hand all ends thread direction, plain (pipe) all ends connection style

Product Characteristics

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

Thread Direction: right-hand all ends
End Item Identification: aircraft, eagle f-15
Connection Style: plain (pipe) all ends
Valve Operation Method: automatic
Connection Type: threaded external pipe all ends
Maximum Operating Pressure: 1200.0 pounds per square inch single response
Nominal Thread Size: 0.125 inches all ends
Special Features: includes manual override
Material: copper alloy body
Style Designator: straight thru
Thread Series Designator: npt all ends

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
3307811-1	Safety Relief Valve
M5159N-2M(L)-140	Safety Relief Valve
M5159N2M140ASME	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-01-418-4221?

The FSCG of the NSN 4820-01-418-4221 is 4820

Does the NSN 4820-01-418-4221 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-01-418-4221 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 4820-01-418-4221 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-418-4221 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 4820-01-418-4221 was assigned to the Federal Catalog?

It was assigned 30 years ago, on Fri, Aug 25, 1995