ST7M477-1

View detailed technical data, stock status, and sourcing information for: ST7M477-1
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-129-5143

Item Name Code

05487

Assigment Date

04/07/1982 (44 years ago)

poppet flow control device, right-hand 2nd end thread direction, right-hand 1st end thread direction, 3a 1st end thread class, 3a 2nd 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.

Thread Class: 3a 1st end
Thread Class: 3a 2nd end
Thread Direction: right-hand 1st end
Thread Direction: right-hand 2nd end
Flow Control Device: poppet
Disk Loading Method: spring
Maximum Operating Temp: 400.0 fahrenheit single response
Connection Style: flared (tube) 1st end
Connection Style: flared (tube) 2nd end
Valve Operation Method: automatic
Connection Type: threaded external tube 2nd end
Connection Type: threaded external tube 1st end
Mounting Position: horizontal or vertical
Thread Quantity Per Inch: 14 1st end
Thread Quantity Per Inch: 16 2nd end
Maximum Operating Pressure: 250.0 pounds per square inch single response
Nominal Thread Size: 0.750 inches 2nd end
Nominal Thread Size: 0.875 inches 1st end
Seat Angle: 37.0 degrees 1st end
Seat Angle: 37.0 degrees 2nd end
Material: aluminum alloy 2024 overall
Material Document And Classification: qq-a-225/6 fed spec single material response overall
Media For Which Designed: air 1st response
Media For Which Designed: fuel/oil, hydrocarbon 2nd response
Style Designator: straight thru
Thread Series Designator: unj 1st end
Thread Series Designator: unj 2nd 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
10124598	Check Valve
P207-526	Check Valve
ST7M477	Check Valve
ST7M477-1	Check Valve
ZCV88	Check Valve

FAQs

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

What is the FSCG of the NSN 4820-01-129-5143?

The FSCG of the NSN 4820-01-129-5143 is 4820

Does the NSN 4820-01-129-5143 have a Schedule B code assigned?

Yes, the Schedule B code is 8481309000

Does NSN 4820-01-129-5143 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 4820-01-129-5143 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-129-5143 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 4820-01-129-5143 was assigned to the Federal Catalog?

It was assigned 44 years ago, on Wed, Apr 7, 1982