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4820-01-090-4182

Pressure and Temper Relief Valve

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Official Item Classification

Name
Pressure and Temper Relief Valve
(NSN) National Stock Number
4820-01-090-4182
(FSG) Federal Supply Group
48 Valves
(FSC) Federal Supply Classification
4820 Nonpowered Valves
(INC) Item Name Code
16996
(FIIG) Federal Item Identification Guide
A07100
Date
02/16/1980 (46 years ago)

1 end connection quantity, 150.0 fahrenheit temp rating, "angle give "adqm" and "adqn" only if flanged one or two ends" body style, +751.0 to 1100.0 pounds per square inch adjustable pressure range, disk, top guided flow control device

Specs & Compatibility

Body Style

"angle give "adqm" and "adqn" only if flanged one or two ends"

Temp Rating

150.0 fahrenheit

Flow Control Device

disk, top guided

End Connection Quantity

1

Adjustable Pressure Range

+751.0 to 1100.0 pounds per square inch

Temp Adjustability

not adjustable

Criticality Code Justification

zzzy

Material

copper alloy 922 body

Material Document And Classification

astm b61 assn std single material response body

Reference Number Differentiating Characteristics

quality control in accordance with navships 0948-045-7010 material identification and control instruction for level one items

Regulatory Compliance

Precious Metals Indicator
A

Item does not contain precious metal.

Criticality Code
S

The item is a non-aviation critical safety item (csi) whose failure will result in serious damage to equipment or serious injury or death to personnel.

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

0016996

Related Hardware Products

Part Number Description
20257CM41M Pressure and Temper Relief Valve
20257CM41ML1 Pressure and Temper Relief Valve

Frequently Asked Questions

What is the FSCG of the NSN 4820-01-090-4182?
The FSCG of the NSN 4820-01-090-4182 is 4820
Does the NSN 4820-01-090-4182 have a Schedule B code assigned?
Yes, the Schedule B code is 8481400000
Does NSN 4820-01-090-4182 require demilitarization?
Usml items - mutilation to the point of scrap required worldwide. (note 7).
Does NSN 4820-01-090-4182 contain precious materials?
Item does not contain precious metal.
Does NSN 4820-01-090-4182 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 4820-01-090-4182 was assigned to the Federal Catalog?
It was assigned 46 years ago, on Sat, Feb 16, 1980