4820-00-494-0851

Find complete technical information, availability, and procurement data for: 4820-00-494-0851
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-494-0851

Item Name Code

05485

Assigment Date

03/25/1972 (54 years ago)

4.000 inches all ends nominal pipe size accommodated, pressure seal, ring type bonnet attachment method, outside screw-yoke bonnet type, disk flow control device, 775.0 fahrenheit single response maximum operating temp

Product Characteristics

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

Nominal Pipe Size Accommodated: 4.000 inches all ends
Flow Control Device: disk
Bonnet Type: outside screw-yoke
Bonnet Attachment Method: pressure seal, ring type
Maximum Operating Temp: 775.0 fahrenheit single response
Connection Style: beveled (pipe) all ends
Valve Operation Method: manual
Connection Type: butt weld pipe all ends
Features Provided: bonnet packing
Maximum Operating Pressure: 600.0 pounds per square inch single response
Special Features: valve size 4.000 in.
Material: steel corrosion resisting stem
Material: steel flow control device
Material: steel seat
Material: steel uns j03002 body
Material Document And Classification: a105,grade 2 assn std single material response body
Material Document And Classification: 66 fed std single material response stem
Material Document And Classification: mil-r-1713 mil spec single material response seat
Material Document And Classification: mil-r-17131 mil spec single material response flow control device
Media For Which Designed: steam single response
Special Test Features: radiography inspection per mil-std-271
Style Designator: straight thru

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
4820-00-841-6996	No Name Available	07/29/1985
4820-00-969-2826	No Name Available	09/01/1992

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
78306-B12-27PS2TS-SC40-882056343	Globe Valve
B12-20P02TS/78532-9/882057827	Globe Valve
C9877-7	Globe Valve
CS4820-0015DADTPRQD	Globe Valve

FAQs

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

What is the FSCG of the NSN 4820-00-494-0851?

The FSCG of the NSN 4820-00-494-0851 is 4820

Does the NSN 4820-00-494-0851 have a Schedule B code assigned?

Yes, the Schedule B code is 8481803060

Does NSN 4820-00-494-0851 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 4820-00-494-0851 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-494-0851 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 4820-00-494-0851 was assigned to the Federal Catalog?

It was assigned 54 years ago, on Sat, Mar 25, 1972