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4820-01-171-4260

Find complete technical information, availability, and procurement data for: 4820-01-171-4260

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4820-01-171-4260
Federal Supply Group
Valves
Federal Supply Classification
4820 Nonpowered Valves
National Stock Number
4820-01-171-4260
Item Name Code
05483
Assigment Date
02/07/1984 (42 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.

4 all ends bolt hole quantity, outside screw-yoke bonnet type, bolted bonnet attachment method, manual valve operation method, disk flow control device

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
outside screw-yoke
Bonnet Attachment Method
bolted
Bolt Hole Quantity
4 all ends
Valve Operation Method
manual
Flange Shape
round with holes all ends
Connection Type
flange all ends
Features Provided
bonnet packing
Valve Size
3.000 inches
Nominal Outside Diameter
7.500 inches all ends
Nominal Thickness
0.938 inches all ends
First Connection Face To Centerline Distance
4.750 inches
Bolt Hole Nominal Diameter
0.750 inches all ends
Second Connection Face To Centerline Distance
4.750 inches
Bolt Circle Nominal Diameter
6.000 inches all ends
Flange Face Design
raised straight all ends
Raised Face Nominal Height
0.062 inches all ends
Raised Face Nominal Diameter
5.000 inches all ends
Special Features
stop check internally
Material
steel corrosion resisting stem
Material
steel uns j91150 flow control device
Material
steel uns j91150 seat
Material
steel uns j92800 body
Material Document And Classification
astm a182 grade f6 assn std single material response stem
Material Document And Classification
astm a217 grade ca15 assn std single material response flow control device
Material Document And Classification
astm a217-grade ca15 assn std single material response seat
Material Document And Classification
astm a351 grade cf3m assn std single material response body
Material Document And Classification
mil p 17303 mil spec single material response packing
Supplementary Features
this item has been reviewed for asbestos material;the current sources,79342 have indicated their part number contained asbestos prior to 1984,they continue to manufacture the same part number without asbestos material after 1984

Related Parts

This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:

Part Number Name
3 S153F1-316L MIL Angle Valve
CG820110 3IN Angle Valve

FAQs

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

What is the FSCG of the NSN 4820-01-171-4260?
The FSCG of the NSN 4820-01-171-4260 is 4820
Does the NSN 4820-01-171-4260 have a Schedule B code assigned?
Yes, the Schedule B code is 8481803090
Does NSN 4820-01-171-4260 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 4820-01-171-4260 contain precious materials?
Item does not contain precious metal.
Does NSN 4820-01-171-4260 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 4820-01-171-4260 was assigned to the Federal Catalog?
It was assigned 42 years ago, on Tue, Feb 7, 1984

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