YMS135S49-73PC140

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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-852-5267

Item Name Code

05488

Assigment Date

11/22/1966 (59 years ago)

threaded bonnet attachment method, inside spring bonnet type, spring disk loading method, right-hand all ends thread direction, 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.

Thread Direction: right-hand all ends
Flow Control Device: disk
Bonnet Type: inside spring
Bonnet Attachment Method: threaded
Disk Loading Method: spring
Connection Style: plain (pipe) 1st end
Connection Style: plain,optional end(pipe) 2nd end
Valve Operation Method: automatic
Connection Type: threaded external pipe 1st end
Connection Type: threaded internal pipe 2nd end
Features Provided: valve stem lock shield
Maximum Operating Pressure: 300.0 pounds per square inch single response
Nominal Thread Size: 0.500 inches all ends
Opening Pressure Setting: 155.0 pounds per square inch
Material: bronze overall
Media For Which Designed: water, fresh single response
Style Designator: angle
Thread Series Designator: npt all ends

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
4820-00-233-7751	No Name Available	07/01/1983
4820-00-446-3567	No Name Available	08/01/1987

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
10801PC140	Safety Relief Valve
10804PC140	Safety Relief Valve
10814PC140	Safety Relief Valve
12003PC117	Safety Relief Valve
12014PC117	Safety Relief Valve
20-1/2X1/2-155PSI	Safety Relief Valve
3155547PC117	Safety Relief Valve
5801PC140	Safety Relief Valve
5804PC140	Safety Relief Valve
5814PC140	Safety Relief Valve
6301PC140	Safety Relief Valve
6304PC140	Safety Relief Valve
6314PC140	Safety Relief Valve
7701PC140	Safety Relief Valve
7704PC140	Safety Relief Valve
AM136S49-127ALT2PC140	Safety Relief Valve
AM136S49-130ALT2PC140	Safety Relief Valve
AM136S49-140ALT2PC140	Safety Relief Valve
AM351S4902-503287ALT1PC140	Safety Relief Valve
AM351S4902-50329ALT1PC140	Safety Relief Valve
AM351S4902-503300ALT1PC140	Safety Relief Valve
FIG20 1-2IN	Safety Relief Valve
FIG20 1/2INCH 76 175PSI	Safety Relief Valve
S4901-3154489PC117	Safety Relief Valve
YMS135S49-13PC140	Safety Relief Valve
YMS135S49-18PC140	Safety Relief Valve
YMS135S49-73PC140	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-00-852-5267?

The FSCG of the NSN 4820-00-852-5267 is 4820

Does the NSN 4820-00-852-5267 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-00-852-5267 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 4820-00-852-5267 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-852-5267 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 4820-00-852-5267 was assigned to the Federal Catalog?

It was assigned 59 years ago, on Tue, Nov 22, 1966