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4820-00-237-4298

Safety Relief Valve

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Official Item Classification

Name
Safety Relief Valve
(NSN) National Stock Number
4820-00-237-4298
(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
12/24/1971 (54 years ago)

2a 1st end thread class, plain (tube) 1st end connection style, ball flow control device, right-hand 1st end thread direction, spring disk loading method

Specs & Compatibility

Thread Class

2a 1st end

Thread Direction

right-hand 1st end

Flow Control Device

ball

Disk Loading Method

spring

Connection Style

plain (tube) 1st end

Valve Operation Method

automatic

Connection Type

threaded external tube 1st end

Thread Quantity Per Inch

14 1st end

Nominal Thread Size

1.000 inches 1st end

Special Features

four outlet holes spaced 90 deg apart,0.375 in. dia

Material

copper alloy flow control device

Material

steel body

Material

steel seat

Style Designator

cross

Thread Series Designator

uns 1st end

Regulatory Compliance

Precious Metals Indicator
U

Precious metal content is unknown

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
5R0679 Safety Relief Valve
5R679 Safety Relief Valve

Frequently Asked Questions

What is the FSCG of the NSN 4820-00-237-4298?
The FSCG of the NSN 4820-00-237-4298 is 4820
Does the NSN 4820-00-237-4298 have a Schedule B code assigned?
Yes, the Schedule B code is 8481400000
Does NSN 4820-00-237-4298 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 4820-00-237-4298 contain precious materials?
Precious metal content is unknown
Does NSN 4820-00-237-4298 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 4820-00-237-4298 was assigned to the Federal Catalog?
It was assigned 54 years ago, on Fri, Dec 24, 1971