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Safety Relief Valve NSN 4820-01-199-7881

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 4820-01-199-7881 NSN: 4820-01-199-7881

Features and Characteristics

Flow Control Device
Disk
Bonnet Type
Inside spring
Bonnet Attachment Method
Union
Disk Loading Method
Spring
Bolt Hole Quantity
8 all ends
End Application
Fleet modernization program-cruise/destroyers
Valve Operation Method
Automatic
Flange Shape
Round with holes all ends
Connection Type
Flange all ends
Valve Size
4.000 inches
Adjustable Pressure Range
+70.0/+81.0 pounds per square inch
Maximum Operating Pressure
150.0 pounds per square inch single response
Outside Diameter
9.000 inches all ends
Thickness
0.688 inches all ends
First Connection Face To Centerline Distance
5.812 inches
Bolt Hole Diameter
0.750 inches all ends
Second Connection Face To Centerline Distance
5.812 inches
Bolt Circle Diameter
7.500 inches all ends
Flange Face Design
Plain all ends
Material
Nickel alloy flow control device
Style Designator
Err-090
FSC
4820 Nonpowered Valves
NIIN
011997881
NSN
4820011997881

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
NMP1106 0PTI0N
Cage Code:
75954
Status:
A
MSDS:
Part Number:
BAMGG06SMM
Cage Code:
5P967
Status:
A
MSDS:
Part Number:
NMP1106 OPTION K 70T81PSI
Cage Code:
15187
Status:
A
MSDS:
Part Number:
NMP1106G11G0070
Cage Code:
15187
Status:
A
MSDS:
Part Number:
46H0206/M5FLGE150LB4IN70T81PSI
Cage Code:
75954
Status:
A
MSDS:
Part Number:
46H0206/M5FLGE150LB4IN70T181PSI
Cage Code:
01343
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 4820-01-199-7881
What are the manufacturers of nsn 4820011997881?
Does this nsn 4820011997881 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820011997881
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 4820011997881 contain any precious metals?
No precious metal content.
Does nsn 4820011997881 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820011997881?
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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