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4820-00-021-2968

Find complete technical information, availability, and procurement data for: 4820-00-021-2968

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4820-00-021-2968
Federal Supply Group
Valves
Federal Supply Classification
4820 Nonpowered Valves
National Stock Number
4820-00-021-2968
Item Name Code
05488
Assigment Date
04/27/1967 (59 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.

250.0 fahrenheit single response maximum operating temp, 2a 1st end thread class, right-hand 1st end thread direction, 0.875 inches 1st end nominal pipe size accommodated, stem 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.

Nominal Pipe Size Accommodated
0.875 inches 1st end
Thread Class
2a 1st end
Thread Direction
right-hand 1st end
Flow Control Device
stem
Maximum Operating Temp
250.0 fahrenheit single response
Connection Style
reduced socket 2nd end
Connection Style
plain,optional end(pipe) 1st end
Valve Operation Method
manual
Connection Type
threaded internal pipe 1st end
Connection Type
unthreaded internal pipe 2nd end
Thread Quantity Per Inch
14 1st end
Maximum Operating Pressure
6000.0 pounds per square inch single response
Nominal Thread Size
0.875 inches 1st end
Part Name Assigned By Controlling Agency
valve, shutoff
Material
steel comp 303 body
Material
steel comp 303 stem
Material Document And Classification
aisi 30300 assn std 1st material response body
Material Document And Classification
aisi 30300 assn std 2nd material response stem
Style Designator
straight thru
Thread Series Designator
unf 1st end
Furnished Items And Quantity
1 handle

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
2528657 Safety Relief Valve
BC949T Safety Relief Valve
BC949T-2Q Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-00-021-2968?
The FSCG of the NSN 4820-00-021-2968 is 4820
Does the NSN 4820-00-021-2968 have a Schedule B code assigned?
Yes, the Schedule B code is 8481400000
Does NSN 4820-00-021-2968 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 4820-00-021-2968 contain precious materials?
Item does not contain precious metal.
Does NSN 4820-00-021-2968 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 4820-00-021-2968 was assigned to the Federal Catalog?
It was assigned 59 years ago, on Thu, Apr 27, 1967

Professional Distribution

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Pricing

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ITAR Registered

In Stock

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New Material 1
Total 1
Availability of this item was last updated on: 03/27/2026 03:03 PM EDT. Stock levels and pricing are subject to change.

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