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Rupturable Disk NSN 4820-01-491-4870

Item Description

A thin, circular, metallic or nonmetallic item with a flat or prebulged cross-sectional shape, designed to rupture at a predetermined pressure to prevent damage to hydraulic or pneumatic systems, or the like. It may include multiple pieces, such as a retainer ring, disk and vacuum support. It can be used independently or as a component part of a head, safety, pressure relief. For items furnished with a holder, see head and disk, safety, pressure relief. For items without a rupture pressure rating, see disk, solid, plain. Excludes diaphragm, valve, flat; diaphragm, valve, special shaped; disk, valve; and insulator, disk.

NSN 4820-01-491-4870 NSN: 4820-01-491-4870

Features and Characteristics

End Application
Cold and cool room plant
Disk Type
Solid
Features Provided
Nonfragmenting
Burst Pressure
235.0 pressure pounds per square inch gage
Disk Material
Copper
Burst Temperature
72.0 degrees fahrenheit
Disk Size
0.500 inches
FSC
4820 Nonpowered Valves
NIIN
014914870
NSN
4820014914870

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
555-235-CE
Cage Code:
28193
Status:
A
MSDS:
Part Number:
268L64397-M00
Cage Code:
U2692
Status:
A
MSDS:
Part Number:
426L64130-M00 ITEM 20
Cage Code:
U2692
Status:
A
MSDS:
Part Number:
5525-235
Cage Code:
28193
Status:
A
MSDS:
Part Number:
5525-235-CE
Cage Code:
28193
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 4820-01-491-4870
What are the manufacturers of nsn 4820014914870?
Does this nsn 4820014914870 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820014914870
A thin, circular, metallic or nonmetallic item with a flat or prebulged cross-sectional shape, designed to rupture at a predetermined pressure to prevent damage to hydraulic or pneumatic systems, or the like. it may include multiple pieces, such as a retainer ring, disk and vacuum support. it can be used independently or as a component part of a head, safety, pressure relief. for items furnished with a holder, see head and disk, safety, pressure relief. for items without a rupture pressure rating, see disk, solid, plain. excludes diaphragm, valve, flat; diaphragm, valve, special shaped; disk, valve; and insulator, disk.
Does nsn 4820014914870 contain any precious metals?
No precious metal content.
Does nsn 4820014914870 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820014914870?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)
INC
FIIG
App. Key
Cond. Code
Status
INC:
27850
FIIG:
A512V0
App. Key:
Cond. Code:
1
Status:
A

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  •   Certificate of Conformance
  •   Quality Inspected Parts
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