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4820-01-192-7129

Safety Relief Valve

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Official Item Classification

Name
Safety Relief Valve
(NSN) National Stock Number
4820-01-192-7129
(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
10/25/1984 (41 years ago)

0.750 inches 1st end nominal pipe size accommodated, 250.0 fahrenheit single response maximum operating temp, 0.250 inches 2nd end nominal pipe size accommodated, ticonderoga class cg (47) end item identification, disk flow control device

Specs & Compatibility

Nominal Pipe Size Accommodated

0.250 inches 2nd end

Nominal Pipe Size Accommodated

0.750 inches 1st end

Flow Control Device

disk

Maximum Operating Temp

250.0 fahrenheit single response

End Item Identification

ticonderoga class cg (47)

Valve Operation Method

automatic

Connection Type

unthreaded internal pipe all ends

Criticality Code Justification

feat

Opening Pressure Setting

1800.0 pounds per square inch

Special Features

weapon system essential

Material

copper alloy body

Material

nickel alloy flow control device

Material

nickel alloy seat

Material

steel corrosion resisting stem

Material Document And Classification

astm b-61 assn std single material response body

Material Document And Classification

qq-n-281 fed spec single material response flow control device

Style Designator

angle

Regulatory Compliance

Precious Metals Indicator
A

Item does not contain precious metal.

Criticality Code
Y

The item does not have a nuclear hardened feature but does have other critical feature(s) such as tolerance, fit restrictions 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

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D49727 PART R10CB8E8AB Safety Relief Valve

Frequently Asked Questions

What is the FSCG of the NSN 4820-01-192-7129?
The FSCG of the NSN 4820-01-192-7129 is 4820
Does the NSN 4820-01-192-7129 have a Schedule B code assigned?
Yes, the Schedule B code is 8481400000
Does NSN 4820-01-192-7129 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 4820-01-192-7129 contain precious materials?
Item does not contain precious metal.
Does NSN 4820-01-192-7129 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 4820-01-192-7129 was assigned to the Federal Catalog?
It was assigned 41 years ago, on Thu, Oct 25, 1984