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Safety Relief Valve NSN 4820-01-539-7321

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 4820-01-539-7321 NSN: 4820-01-539-7321

Features and Characteristics

End Application
Midbody external piping installation
Criticality Code Justification
Zzzy
Part Name Assigned By Controlling Agency
Drawing) valve assembly, overboard vent, p34 and p35 ops cpt
Reference Number Differentiating Characteristics
Material controlled iaw ss800-ag-man-010/p-9290 system certification procedures and criteria manual for deep submergence systems and requires cleaning, packaging, and marking iaw mil-std-1622 or mil-std-1330 as deemed applicable. Critical items for safety and survival of deep submergence research and rescue vehicles as differentiated by special test features.
FSC
4820 Nonpowered Valves
NIIN
015397321
NSN
4820015397321

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
5793250 FIND 075D0
Cage Code:
53711
Status:
A
MSDS:
Part Number:
6394697
Cage Code:
53711
Status:
A
MSDS:
Part Number:
6394697D0
Cage Code:
03950
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 4820-01-539-7321
What are the manufacturers of nsn 4820015397321?
Does this nsn 4820015397321 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820015397321
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 4820015397321 contain any precious metals?
No precious metal content.
Does nsn 4820015397321 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820015397321?
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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  •   Certificate of Conformance
  •   Quality Inspected Parts
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