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Safety Relief Valve NSN 4820-01-177-8459

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 4820-01-177-8459 NSN: 4820-01-177-8459

Features and Characteristics

Flow Control Device
Disk
Bonnet Type
Inside screw
Bonnet Attachment Method
Bolted
Disk Loading Method
Spring
Bolt Hole Quantity
4 all ends
Valve Operation Method
Automatic
Flange Shape
Round with holes all ends
Connection Type
Flange all ends
Valve Size
0.500 inches
Adjustable Pressure Range
+171.0/+209.0 pounds per square inch
Opening Pressure Setting
190.0 pounds per square inch
Outside Diameter
4.250 inches 1st end
Thickness
0.375 inches 1st end
First Connection Face To Centerline Distance
3.438 inches
Bolt Hole Diameter
0.625 inches all ends
Second Connection Face To Centerline Distance
3.438 inches
Bolt Circle Diameter
3.125 inches 1st end
Flange Face Design
Raised straight all ends
Raised Face Height
0.062 inches all ends
Raised Face Diameter
1.375 inches all ends
Material
Stainless steel stem
Style Designator
Err-090
Furnished Items And Quantity
1 lever
Specification Data
81349-mil-v-24332 government specification
Nondefinitive Specification/std Data
B grade
FSC
4820 Nonpowered Valves
NIIN
011778459
NSN
4820011778459

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
MIL-V-24332
Cage Code:
81349
Status:
A
MSDS:
Part Number:
CASNN08SCE-A016
Cage Code:
5P967
Status:
A
MSDS:
Part Number:
R10AD5F5AJ-CM1 AND D49723
Cage Code:
34889
Status:
A
MSDS:
Part Number:
CASNN08SCE
Cage Code:
65079
Status:
A
MSDS:
Part Number:
UCASNNSPSCCE
Cage Code:
65079
Status:
A
MSDS:
Part Number:
DN60FF-171T209
Cage Code:
5P967
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 4820-01-177-8459
What are the manufacturers of nsn 4820011778459?
Does this nsn 4820011778459 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820011778459
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 4820011778459 contain any precious metals?
No precious metal content.
Does nsn 4820011778459 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820011778459?
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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