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Safety Relief Valve NSN 4820-01-374-7729

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 4820-01-374-7729 NSN: 4820-01-374-7729

Features and Characteristics

Flow Control Device
Disk
Disk Loading Method
Spring
Valve Discharge Flow Rate
1.5 gallons per minute
Maximum Operating Temp
125.0 degrees fahrenheit single response
End Application
Seawolf class ssn
Valve Operation Method
Automatic
Connection Type
Flange all ends
Valve Size
0.500 inches
Maximum Operating Pressure
35.0 pounds per square inch single response
Opening Pressure Setting
28.5 pounds per square inch
Face To Face Distance
3.250 inches
First Connection Face To Centerline Distance
3.250 inches
Flange Face Design
Raised straight all ends
Material
Stainless steel stem
Material Specification
Qq-n-281 federal specification single material response flow control device
Media For Which Designed
Water, fresh single response
Style Designator
Err-090
FSC
4820 Nonpowered Valves
NIIN
013747729
NSN
4820013747729

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
SW124C01E0028
Cage Code:
15187
Status:
A
MSDS:
Part Number:
SW124
Cage Code:
15187
Status:
A
MSDS:
Part Number:
SW124A01E0028.5
Cage Code:
15187
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 4820-01-374-7729
What are the manufacturers of nsn 4820013747729?
Does this nsn 4820013747729 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820013747729
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 4820013747729 contain any precious metals?
No precious metal content.
Does nsn 4820013747729 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820013747729?
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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