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Safety Relief Valve NSN 4820-01-254-8677

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 4820-01-254-8677 NSN: 4820-01-254-8677

Features and Characteristics

Flow Control Device
Disk
Disk Loading Method
Spring
Valve Operation Method
Automatic
Flange Shape
Round with holes all ends
Connection Type
Flange all ends
Valve Size
1.250 inches
Adjustable Pressure Range
+4.0/+309.0 pounds per square inch
Flange Face Design
Raised straight all ends
Material
Steel body
Style Designator
Err-090
FSC
4820 Nonpowered Valves
NIIN
012548677
NSN
4820012548677

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
314953 SER.N0.B
Cage Code:
16497
Status:
A
MSDS:
Part Number:
314953 1-1/4IN. 1811GA-0-3X1-20
Cage Code:
16497
Status:
A
MSDS:
Part Number:
314953 SER.NO.BV09253
Cage Code:
16497
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 4820-01-254-8677
What are the manufacturers of nsn 4820012548677?
Does this nsn 4820012548677 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820012548677
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 4820012548677 contain any precious metals?
No precious metal content.
Does nsn 4820012548677 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820012548677?
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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  •   On Time Delivery
  •   Certificate of Conformance
  •   Quality Inspected Parts
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