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Safety Relief Valve NSN 4820-01-321-2221

Item Description

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.

NSN 4820-01-321-2221 NSN: 4820-01-321-2221

Features and Characteristics

Flow Control Device
Disk
Bonnet Type
Inside spring
Bonnet Attachment Method
Threaded
Disk Loading Method
Spring
Connection Style
Streamlined with one brazing ring (tube) err-100
Valve Operation Method
Automatic
Connection Type
Unthreaded internal tube all ends
Adjustable Pressure Range
+65.0/+100.0 pounds per square inch
Outside Diameter Tube Accommodated
1.000 inches all ends
Material
Copper alloy body
Style Designator
Err-090
FSC
4820 Nonpowered Valves
NIIN
013212221
NSN
4820013212221

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
MIL-V-24332
Cage Code:
81349
Status:
A
MSDS:
Part Number:
1385 B/M 2385E226 1 INCH
Cage Code:
35795
Status:
A
MSDS:
Part Number:
YB2385E226
Cage Code:
35795
Status:
A
MSDS:
Part Number:
1384 1IN 65T 100PSI
Cage Code:
35795
Status:
A
MSDS:
Part Number:
1385 B/M 20377735 1INCH
Cage Code:
35795
Status:
A
MSDS:

Foreign Trade & Schedule B

What is a Schedule B number? Find more information at help.cbp.gov
  • Schedule B Number: 8481400000
  • NAICS: 332911
  • SITC: 74740
  • Description: Safety or relief valves
  • End Use (Code 21180):
    Industrial machines, other

Q & A

Frequently asked questions for NSN 4820-01-321-2221
What are the manufacturers of nsn 4820013212221?
Does this nsn 4820013212221 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820013212221
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.
Does nsn 4820013212221 contain any precious metals?
No precious metal content.
Does nsn 4820013212221 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820013212221?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)
INC
FIIG
App. Key
Cond. Code
Status
INC:
05488
FIIG:
A046B0
App. Key:
AP
Cond. Code:
1
Status:
A

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  •   On Time Delivery
  •   Certificate of Conformance
  •   Quality Inspected Parts
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