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4820-00-142-1543

Find complete technical information, availability, and procurement data for: 4820-00-142-1543

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4820-00-142-1543
Federal Supply Group
Valves
Federal Supply Classification
4820 Nonpowered Valves
National Stock Number
4820-00-142-1543
Item Name Code
05488
Assigment Date
01/01/1963 (63 years ago)

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.

spring disk loading method, 4 1st end bolt hole quantity, bolted bonnet attachment method, disk flow control device, exposed spring bonnet type

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Flow Control Device
disk
Bonnet Type
exposed spring
Bonnet Attachment Method
bolted
Disk Loading Method
spring
Bolt Hole Quantity
4 1st end
Bolt Hole Quantity
4 2nd end
Valve Operation Method
automatic or manual
Flange Shape
round with holes 1st end
Flange Shape
round with holes 2nd end
Connection Type
flange 1st end
Connection Type
flange 2nd end
Valve Size
1.000 inches
Adjustable Pressure Range
+900.0 to 1100.0 pounds per square inch
Maximum Operating Pressure
600.0 pounds per square inch single response
Nominal Outside Diameter
4.250 inches 2nd end
Nominal Outside Diameter
4.875 inches 1st end
Nominal Thickness
0.438 inches 2nd end
Nominal Thickness
0.688 inches 1st end
First Connection Face To Centerline Distance
3.250 inches
Bolt Hole Nominal Diameter
0.562 inches 2nd end
Bolt Hole Nominal Diameter
0.688 inches 1st end
Second Connection Face To Centerline Distance
3.250 inches
Bolt Circle Nominal Diameter
3.125 inches 2nd end
Bolt Circle Nominal Diameter
3.500 inches 1st end
Flange Face Design
plain 2nd end
Flange Face Design
raised straight 1st end
Raised Face Nominal Height
0.250 inches 1st end
Raised Face Nominal Diameter
2.000 inches 1st end
Material
steel body
Material
steel corrosion resisting flow control device
Material
steel corrosion resisting seat
Material
steel stem
Media For Which Designed
water, fresh single response
Style Designator
angle flanged ends

FAQs

Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.

What is the FSCG of the NSN 4820-00-142-1543?
The FSCG of the NSN 4820-00-142-1543 is 4820
Does the NSN 4820-00-142-1543 have a Schedule B code assigned?
Yes, the Schedule B code is 8481400000
Does NSN 4820-00-142-1543 require demilitarization?
Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.
Does NSN 4820-00-142-1543 contain precious materials?
Precious metal content is unknown
Does NSN 4820-00-142-1543 contain hazardous materials?
Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.
When the NSN 4820-00-142-1543 was assigned to the Federal Catalog?
It was assigned 63 years ago, on Tue, Jan 1, 1963

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