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313850 Safety Relief Valve

4820-00-541-0454

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Official Item Classification

Name
Safety Relief Valve
Part Number
313850
(NSN) National Stock Number
4820-00-541-0454
(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
01/01/1963 (63 years ago)

6.0 gallons per minute valve discharge flow rate, gasket seal(boss) 1st end connection style, right-hand 1st end thread direction, 3b 1st end thread class, spring disk loading method

Specs & Compatibility

Thread Class

3b 1st end

Thread Direction

right-hand 1st end

Disk Loading Method

spring

Valve Discharge Flow Rate

6.0 gallons per minute

Connection Style

gasket seal(boss) 1st end

Connection Type

threaded internal boss 1st end

Thread Quantity Per Inch

18 1st end

Maximum Operating Pressure

1500.0 pounds per square inch single response

Nominal Thread Size

0.562 inches 1st end

Opening Pressure Setting

300.0 pounds per square inch

Media For Which Designed

hydraulic fluid, phosphate-ester base single response

Surface Treatment

anodize

Style Designator

straight thru

Thread Series Designator

unf 1st end

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
313850 Safety Relief Valve
37F39720 Safety Relief Valve
52-46 Safety Relief Valve

Frequently Asked Questions

What is the FSCG of the NSN 4820-00-541-0454?
The FSCG of the NSN 4820-00-541-0454 is 4820
Does the NSN 4820-00-541-0454 have a Schedule B code assigned?
Yes, the Schedule B code is 8481400000
Does NSN 4820-00-541-0454 require demilitarization?
Usml items - mutilation to the point of scrap required worldwide. (note 7).
Does NSN 4820-00-541-0454 contain precious materials?
Item does not contain precious metal.
Does NSN 4820-00-541-0454 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 4820-00-541-0454 was assigned to the Federal Catalog?
It was assigned 63 years ago, on Tue, Jan 1, 1963