Pressure And Temper Relief Valve NSN 4820-01-646-5998

Item Description

A valve designed to release under excessive pressure and/or excessive temperature by opening at a predetermined pressure and/or temperature. Thermostatically operated valves close when the pressure is relieved or the temperature is reduced. Fusible plug valves require replacement of the plug. See also valve, safety relief and valve, regulating. Temperature.

NSN: 4820-01-646-5998

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Features and Characteristics

Body Material

Aluminum alloy, qq-a-200/8, alloy 6061, t6

Outside Surface Treatment

Anodized, mil-a-8625, type 2

Body Style

Straight thru

Stem Material

Aluminum alloy, qq-a-200/8, alloy 6061, t6

Tempurature Rating

-65.0 degrees fahrenheit and 320.0 degrees fahrenheit

Media For Which Designed

Oil

First End Flange Shape Style

Oval w/ bolt holes

First End Flange Thickness

0.125 inches

First End Flange Length

1.812 inches

First End Flange Width

0.875 inches

First End Flange End Radius

0.250 inches

First End Bolt Hole Quantity

First End Bolt Hole Diameter

0.221 inches

Second End Relationship With First End

Not identical

Second End Style Designator

Grooved

Seat Material

Aluminum alloy, qq-a-200/8, alloy 6061, t6

Body Outside Diameter

0.798 inches

Flow Control Device

Stem and integral disk

Tempurature Control Device Type

Thermostatic

First End Center To Center Distance Between Holes Along Length

1.312 inches

Part Name Assigned By Controlling Agency

Valve bypass hydr; valve, bypass thermal and pressure

Special Features

Fully open: 165 degrees and below; starts to close: 165-180 deg; fully closed: 180 deg; fluid: mil-h-83282; valve cracking pressure: 40 psid max, at 190-195 degrees f; valve to reseat at 30 psid min

FSC

4820 Nonpowered Valves

NIIN

016465998

NSN

4820016465998

Manufacturer Part Numbers

Part numbers registered to this national stock number.

Part Number

Cage

Status

MSDS

Part Number:

11-878

Cage Code:

27195

Status:

MSDS:

Part Number:

60875-002

Cage Code:

12536

Status:

MSDS:

Foreign Trade & Schedule B

What is a Schedule B number? Find more information at help.cbp.gov

Schedule B Number: 8481400000
NAICS: 332911
SITC: 74740
Description: Safety or relief valves
End Use (Code 21180):
Industrial machines, other

Q & A

Frequently asked questions for NSN 4820-01-646-5998

What are the manufacturers of nsn 4820016465998?

Actronics Incorporated (27195)
Ametek Thermal Systems Inc (12536)

Does this nsn 4820016465998 have a shelf life?
No. This NSN does not have an applicable shelf life.

What is the formal definition of nsn 4820016465998
A valve designed to release under excessive pressure and/or excessive temperature by opening at a predetermined pressure and/or temperature. thermostatically operated valves close when the pressure is relieved or the temperature is reduced. fusible plug valves require replacement of the plug. see also valve, safety relief and valve, regulating. temperature.

Does nsn 4820016465998 contain any precious metals?
No precious metal content.

Does nsn 4820016465998 contain any hazardous materials?
No MSDS. No hazardous material.

What is the ESD classification of nsn 4820016465998?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)

INC

FIIG

App. Key

Cond. Code

Status

INC:

16996

FIIG:

A07100

App. Key:

Cond. Code:

Status:

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Certificate of Conformance
Quality Inspected Parts
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