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Pressure Relief Safety Head NSN 4820-00-891-3349

Item Description

An item of varying shape and size consisting of a metallic body which incloses a nonreusable metallic or nonmetallic disk(s), which is designed and calibrated to burst at a given pressure. It may be used independently, or in conjunction with relief valves to relieve overpressure, and to protect relief valve(s) from corrosive conditions. Excludes valve, safety relief and plug, fusible. for items furnished with a disk, see head and disk, safety, pressure relier.

NSN 4820-00-891-3349 NSN: 4820-00-891-3349

Features and Characteristics

End Connection Type
Threaded
Burst Pressure
4200.0 pressure pounds per square inch gage and 4500.0 pressure pounds per square inch gage
Head Material
Copper alloy
Burst Temperature
275.0 degrees fahrenheit
FSC
4820 Nonpowered Valves
NIIN
008913349
NSN
4820008913349

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
23942137
Cage Code:
99221
Status:
A
MSDS:

Foreign Trade & Schedule B

What is a Schedule B number? Find more information at help.cbp.gov
  • Schedule B Number: 8481909090
  • NAICS: 332911
  • SITC: 74790
  • Description: Parts of taps, cocks, valves and similar appliances, nesoi
  • End Use (Code 21180):
    Industrial machines, other

Q & A

Frequently asked questions for NSN 4820-00-891-3349
What are the manufacturers of nsn 4820008913349?
Does this nsn 4820008913349 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820008913349
An item of varying shape and size consisting of a metallic body which incloses a nonreusable metallic or nonmetallic disk(s), which is designed and calibrated to burst at a given pressure. it may be used independently, or in conjunction with relief valves to relieve overpressure, and to protect relief valve(s) from corrosive conditions. excludes valve, safety relief and plug, fusible. for items furnished with a disk, see head and disk, safety, pressure relier.
Does nsn 4820008913349 contain any precious metals?
Precious metal content is unknown.
Does nsn 4820008913349 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820008913349?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)
INC
FIIG
App. Key
Cond. Code
Status
INC:
28139
FIIG:
A512U0
App. Key:
Cond. Code:
1
Status:
A

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