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Safety Relief Valve NSN 4820-00-639-9393

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 4820-00-639-9393 NSN: 4820-00-639-9393

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Features and Characteristics

Flow Control Device
Poppet
Disk Loading Method
Spring
Valve Operation Method
Automatic
Adjustable Pressure Range
+0.0/+1000.0 pounds per square inch
Maximum Operating Pressure
3500.0 pounds per square inch single response
Material
Nickel alloy seat
Media For Which Designed
Steam single response
Style Designator
Angle
Nondefinitive Specification/std Data
A2 type and c class
Reference Number Differentiating Characteristics
As differentiated by size 3/4 in. By 1 1/4 in.
FSC
4820 Nonpowered Valves
NIIN
006399393
NSN
4820006399393

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
519-4824-3823PC3-4SPRING202
Cage Code:
80064
Status:
A
MSDS:
Part Number:
MILV20065TYPEA2CLASSC
Cage Code:
81349
Status:
A
MSDS:
Part Number:
DA90C 1426T1750PSI3/4X1IN
Cage Code:
01343
Status:
A
MSDS:
Part Number:
NMP1151DA90C3/4X1IN SPRING1277
Cage Code:
01343
Status:
A
MSDS:
Part Number:
S6336BALT1PC3-4SPRING202
Cage Code:
38056
Status:
A
MSDS:
Part Number:
1836-3-4
Cage Code:
38056
Status:
A
MSDS:
Part Number:
571-4903-1303388REVAPCV3
Cage Code:
80064
Status:
A
MSDS:
Part Number:
340-6700-937209PCV3
Cage Code:
80064
Status:
A
MSDS:
Part Number:
3678-184REVAPCV3
Cage Code:
96169
Status:
A
MSDS:
Part Number:
DA90C 1426T1750PSI 3/4X1IN
Cage Code:
75954
Status:
A
MSDS:
Part Number:
3868-143PCV3
Cage Code:
96169
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 4820-00-639-9393
What are the manufacturers of nsn 4820006399393?
Does this nsn 4820006399393 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820006399393
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 4820006399393 contain any precious metals?
No precious metal content.
Does nsn 4820006399393 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820006399393?
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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