4820-01-504-9945

Find complete technical information, availability, and procurement data for: 4820-01-504-9945
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-504-9945

Item Name Code

05488

Assigment Date

02/18/2003 (23 years ago)

An item which is rigid or semirigid, generally flat and smooth. Its thickness is small in comparison to its length and width. It has data thereon indicating method of operation, maintenance, and/or personnel protection. See also marker, identification; plate, identification; plate, designation; plate set, instruction; decal; and label. For items having the combination function of a plate, instruction and plate, identification, see plate, identification. Excludes:tag,instruction.

0.500 inches all ends nominal pipe size accommodated, inside spring bonnet type, bolted bonnet attachment method, disk flow control device, spring disk loading method

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: 0.500 inches all ends
Flow Control Device: disk
Bonnet Type: inside spring
Bonnet Attachment Method: bolted
Disk Loading Method: spring
Valve Discharge Flow Rate: 16.0 cubic feet per minute
Renewable Seat Ring Type: threaded
Maximum Operating Temp: 125.0 fahrenheit single response
End Item Identification: virginia class sub
Connection Style: socket all ends
Valve Operation Method: automatic
Connection Type: unthreaded internal pipe all ends
Adjustable Pressure Range: +60.0 to 73.0 pounds per square inch
Maximum Operating Pressure: 400.0 pounds per square inch single response
Criticality Code Justification: zzzy
Opening Pressure Setting: 60.0 pounds per square inch
Part Name Assigned By Controlling Agency: 1/2 in. relief valve type 2571-t
Material: nickel alloy flow control device
Material: steel body
Material: steel seat
Material: steel stem
Material Document And Classification: astm a351 gr. cf8m assn std single material response body
Material Document And Classification: astm a582 ty. 303 assn std single material response seat
Material Document And Classification: astm a582 ty. 303 assn std single material response stem
Material Document And Classification: qq-n-281 fed spec single material response flow control device
Media For Which Designed: nitrogen, liquid single response
Style Designator: angle
Furnished Items And Quantity: 2 nut and 2 tailpiece
Specification/Standard Data: 81349-mil-v-22549 (1), dtd 13 apr 77, modified government specification
Reference Number Differentiating Characteristics: cleaning, packaging, and marking iaw the latest revision of mil-std-1330

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
CDS 17035	Safety Relief Valve
SW136A01E0060/17035	Safety Relief Valve
SW136A01E0060/17035CP	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-01-504-9945?

The FSCG of the NSN 4820-01-504-9945 is 4820

Does the NSN 4820-01-504-9945 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-01-504-9945 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 4820-01-504-9945 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-504-9945 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 4820-01-504-9945 was assigned to the Federal Catalog?

It was assigned 23 years ago, on Tue, Feb 18, 2003