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4820-01-174-4246

Safety Relief Valve

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Official Item Classification

Name
Safety Relief Valve
(NSN) National Stock Number
4820-01-174-4246
(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
03/17/1984 (42 years ago)

round with holes 2nd end flange shape, round with holes 1st end flange shape, automatic valve operation method, 4.000 inches valve size, 4.000 inches 1st end nominal pipe size accommodated

Specs & Compatibility

Nominal Pipe Size Accommodated

4.000 inches 1st end

Valve Operation Method

automatic

Flange Shape

round with holes 1st end

Flange Shape

round with holes 2nd end

Valve Size

4.000 inches

Adjustable Pressure Range

+1000.0 to 1450.0 pounds per square inch

First Connection Face To Centerline Distance

7.750 inches

Second Connection Face To Centerline Distance

7.000 inches

Flange Face Design

raised straight 2nd end

Raised Face Nominal Diameter

6.250 inches 2nd end

Replacement For

Part Number Description
4820-01-255-8892 No Name Available 05/01/1993

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
6350-101 Safety Relief Valve
6350-1XX 6350-101 Safety Relief Valve

Frequently Asked Questions

What is the FSCG of the NSN 4820-01-174-4246?
The FSCG of the NSN 4820-01-174-4246 is 4820
Does the NSN 4820-01-174-4246 have a Schedule B code assigned?
Yes, the Schedule B code is 8481400000
Does NSN 4820-01-174-4246 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 4820-01-174-4246 contain precious materials?
Item does not contain precious metal.
Does NSN 4820-01-174-4246 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 4820-01-174-4246 was assigned to the Federal Catalog?
It was assigned 42 years ago, on Sat, Mar 17, 1984