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4820-01-486-5173

Safety Relief Valve

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Official Item Classification

Name
Safety Relief Valve
(NSN) National Stock Number
4820-01-486-5173
(FSG) Federal Supply Group
48 Valves
(FSC) Federal Supply Classification
4820 Nonpowered Valves
(INC) Item Name Code
05488
(FIIG) Federal Item Identification Guide
A046B0
Date
07/02/2001 (25 years ago)

pressed-in renewable seat ring type, 4.0 gallons per minute valve discharge flow rate, poppet flow control device, -40.0 fahrenheit minimum operating temp, spring disk loading method

Specs & Compatibility

Flow Control Device

poppet

Disk Loading Method

spring

Valve Discharge Flow Rate

4.0 gallons per minute

Renewable Seat Ring Type

pressed-in

Minimum Operating Temp

-40.0 fahrenheit

End Item Identification

generator set ag9140 rs; w/s designator arleigh burke class ddg

Valve Operation Method

automatic

Connection Type

threaded internal tube all ends

Adjustable Pressure Range

+430.0 to 650.0 pounds per square inch

Opening Pressure Setting

550.0 pounds per square inch

Nominal Outside Diameter Tube Accommodated

0.250 inches all ends

Special Features

end connections are identical; internal strait threads; gasket seal. o-ring buna n iaw mil-p-5315(b) superseded by qpl-5315-23 for use with jp-3, jp-4, jp-5 fuel. next higher assembly fuel system, p/n 23059421.

Material

rubber butadiene-acrylonitrile class nbr seat

Material

steel comp 416 flow control device

Material

steel corrosion resisting body

Media For Which Designed

ethylene glycol single response

Style Designator

straight thru note: to be used for valve bodies of one section only.

Regulatory Compliance

Precious Metals Indicator
A

Item does not contain precious metal.

Criticality Code
X

The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.

Hazardous Metals Indicator
N

Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

Pseudo Item Name Code

0005488

Related Hardware Products

Part Number Description
23059421 ITEM 80 Safety Relief Valve
23059486-6 Safety Relief Valve
665-6-6SS1 Safety Relief Valve

Frequently Asked Questions

What is the FSCG of the NSN 4820-01-486-5173?
The FSCG of the NSN 4820-01-486-5173 is 4820
Does the NSN 4820-01-486-5173 have a Schedule B code assigned?
Yes, the Schedule B code is 8481400000
Does NSN 4820-01-486-5173 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 4820-01-486-5173 contain precious materials?
Item does not contain precious metal.
Does NSN 4820-01-486-5173 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 4820-01-486-5173 was assigned to the Federal Catalog?
It was assigned 25 years ago, on Mon, Jul 2, 2001