129480FIG129-1-2-SET165

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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-147-1745

Item Name Code

05488

Assigment Date

09/17/1971 (54 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.

3a 1st end thread class, right-hand 1st end thread direction, inside spring bonnet type, threaded bonnet attachment method, disk flow control device

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 1st end
Thread Direction: right-hand 1st end
Flow Control Device: disk
Bonnet Type: inside spring
Bonnet Attachment Method: threaded
Disk Loading Method: spring
Maximum Operating Temp: 225.0 fahrenheit single response
Connection Style: flared (tube) 1st end
Valve Operation Method: automatic
Connection Type: threaded external tube 1st end
Maximum Operating Pressure: 225.0 pounds per square inch single response
Nominal Thread Size: 0.750 inches 1st end
Seat Angle: 37.0 degrees 1st end
Material: rubber butadiene-acrylonitrile class nbr and steel flow control device
Material: steel body
Media For Which Designed: air single response
Style Designator: angle
Thread Series Designator: unjf 1st 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
129480FIG129-1-2-SET165	Safety Relief Valve
129480FIG129SET165	Safety Relief Valve
129480SS	Safety Relief Valve
6153-100	Safety Relief Valve
6153-1S	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-00-147-1745?

The FSCG of the NSN 4820-00-147-1745 is 4820

Does the NSN 4820-00-147-1745 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-00-147-1745 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 4820-00-147-1745 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-147-1745 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 4820-00-147-1745 was assigned to the Federal Catalog?

It was assigned 54 years ago, on Fri, Sep 17, 1971