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Safety Relief Valve NSN 4820-01-504-6111

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 4820-01-504-6111 NSN: 4820-01-504-6111

Features and Characteristics

Flow Control Device
Disk
Bonnet Type
Inside spring
Bonnet Attachment Method
Bolted
Disk Loading Method
Spring
Valve Discharge Flow Rate
3168.0 cubic feet per minute
Renewable Seat Ring Type
Threaded
Maximum Operating Temp
165.0 degrees fahrenheit single response
End Application
Seawolf class ssn
Valve Operation Method
Automatic or manual
Adjustable Pressure Range
+76.0/+90.0 pounds per square inch
Maximum Operating Pressure
90.0 pounds per square inch single response
Opening Pressure Setting
90.0 pounds per square inch
Part Name Assigned By Controlling Agency
2.5 in. Relief valve type 1751-t
Material
Nickel alloy 400 stem
Material Specification
Qq-n-288 cl.A federal specification single material response seat
Media For Which Designed
Air single response
Style Designator
C1 angle
Specification Data
81349-mil-v-22549 government specification
FSC
4820 Nonpowered Valves
NIIN
015046111
NSN
4820015046111

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
20261D02S0090/C
Cage Code:
01343
Status:
A
MSDS:
Part Number:
20261D02S0090/CDS17085
Cage Code:
15187
Status:
A
MSDS:
Part Number:
20261
Cage Code:
01343
Status:
A
MSDS:
Part Number:
CDS17085
Cage Code:
15187
Status:
A
MSDS:
Part Number:
20261L51M
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 4820-01-504-6111
What are the manufacturers of nsn 4820015046111?
Does this nsn 4820015046111 have a shelf life?
Yes. 96 mo. after cure date.
What is the formal definition of nsn 4820015046111
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 4820015046111 contain any precious metals?
No precious metal content.
Does nsn 4820015046111 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820015046111?
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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