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Safety Relief Valve NSN 4820-00-440-3699

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 4820-00-440-3699 NSN: 4820-00-440-3699

Features and Characteristics

Thread Class
3a 2nd end
Thread Direction
Right-hand all ends
Flow Control Device
Disk or stem
Bonnet Type
Inside spring
Bonnet Attachment Method
Bolted
Disk Loading Method
Spring
Connection Style
Plain (tube) all ends
Valve Operation Method
Automatic or manual
Connection Type
Threaded external tube all ends
Valve Size
1.5000 inches
Thready Qty Per Inch (tpi)
12 2nd end
Thread Size
2.875 inches 2nd end
First Connection Face To Centerline Distance
5.5000 inches
Second Connection Face To Centerline Distance
6.187 inches
Material
Rubber butadiene-acrylonitrile class nbr packing
Style Designator
Err-090
Thread Series Designator
Uns all ends
FSC
4820 Nonpowered Valves
NIIN
004403699
NSN
4820004403699

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
8516PC1251T
Cage Code:
01343
Status:
A
MSDS:
Part Number:
3313367PC1251-T
Cage Code:
53711
Status:
A
MSDS:
Part Number:
E8516Y51M
Cage Code:
53711
Status:
A
MSDS:
Part Number:
8576-001PCAHP174
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 4820-00-440-3699
What are the manufacturers of nsn 4820004403699?
Does this nsn 4820004403699 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820004403699
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 4820004403699 contain any precious metals?
No precious metal content.
Does nsn 4820004403699 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820004403699?
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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