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4820-01-520-9160

Safety Relief Valve

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Official Item Classification

Name
Safety Relief Valve
(NSN) National Stock Number
4820-01-520-9160
(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
06/02/2004 (22 years ago)

threaded external pipe 1st end connection type, hydraulic compensator assembly end item identification, right-hand 1st end thread direction, automatic valve operation method, plain (pipe) 1st end connection style

Specs & Compatibility

Thread Direction

right-hand 1st end

End Item Identification

hydraulic compensator assembly

Connection Style

plain (pipe) 1st end

Valve Operation Method

automatic

Connection Type

threaded external pipe 1st end

Nominal Thread Size

0.250 inches 1st end

Opening Pressure Setting

10.0 pounds per square inch

Part Name Assigned By Controlling Agency

500 series relief valve

Material

steel comp 316 body

Style Designator

straight thru

Thread Series Designator

npt 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
559-T1-2M-10 Safety Relief Valve

Frequently Asked Questions

What is the FSCG of the NSN 4820-01-520-9160?
The FSCG of the NSN 4820-01-520-9160 is 4820
Does the NSN 4820-01-520-9160 have a Schedule B code assigned?
Yes, the Schedule B code is 8481400000
Does NSN 4820-01-520-9160 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 4820-01-520-9160 contain precious materials?
Item does not contain precious metal.
Does NSN 4820-01-520-9160 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 4820-01-520-9160 was assigned to the Federal Catalog?
It was assigned 22 years ago, on Wed, Jun 2, 2004