NSN 4820-00-207-8821 NIIN 002078821 — Relief Pressure And Temper Valve

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NSN

Item Name

Assigned

DEMIL

Shelf Life

UOM

Using Services

NSN:

		4820-00-207-8821
4820002078821

Description:

VALVE,RELIEF,PRESSURE AND TEMPER

NSN Assigned:

13-APR-73

DEMIL:

Shelf Life:

N/A

UOM:

Using Services:

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Quality Commitment

Serving our customers with quality and safety first.

AS9120 Certified
Audited supply chain
ITAR Registered
DDTC Registered
HAZMAT Certified
Customer service objectives
Every product 100% inspected

4820-00-207-8821 Specification Set by the OEM (see RNCC code 3)

Body Material AAFZ:

brass

Body Style AAQL:

angle give "adqm" and "adqn" only if flanged one or two ends

Temp Rating ABJH:

210.0 deg fahrenheit

Media For Which Designed ACKL:

water, fresh

First End Connection Type ACKM:

threaded internal pipe

First End Style Designator ACKN:

optional end

First End Nominal Pipe Size Accommodated ACLG:

0.500in.

First End Thread Direction ACLL:

RIGHT-Hand

Second End Relationship With First End ACLR:

not identical

Second End Connection Type ACLS:

threaded external pipe

Second End Style Designator ACLT:

plain

Second End Nominal Pipe Size Accommodated ACMN:

0.500in.

Second End Thread Direction ACMS:

RIGHT-Hand

Seat Material ACSH:

brass

Flow Control Device ADQU:

disk, lift

Flow Control Device Material ADQV:

steel, corrosion resisting

End Connection Quantity ADQZ:

Opening Pressure Setting ADSV:

175.0 pounds per square inch

Adjustable Pressure Range ADSW:

+75.0/+175.0 pounds per square inch

Bulb Length AEVU:

4.000in.

Bulb Diameter AEVV:

0.812in.

Temp Adjustability AEVX:

not adjustable

Temp Control Device Type AFKX:

fusible

Special Features FEAT:

temperature water rating at 50000-btu/hr

Cross Reference Parts Part numbers that meet the specification outlined on this page and set by the OEM

Part Number

Cage

RNCC

RNVC

DAC

RNAAC

Status

MSDS

SADC

Part Number:

540 1-2

Cage Code:

79227

RNCC:

RNVC:

DAC:

RNAAC:

Status:

MSDS:

SADC:

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

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

16996

FIIG:

A07100

Concept No.:

App. Key:

Cond. Code:

Status:

BODY STYLE ANGLE GIVE

FIRST END STYLE DESIGNATOR OPTIONAL END style nsn 4820-00-207-8821

Definition Definition of approved item name (AIN): "VALVE,RELIEF,PRESSURE AND TEMPER"

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.

4820-00-207-8821 Material Hazmat, Precious Metals, Criticality, Enviroment, and ESD

HMIC

PMIC

ESD

ENAC

ADPE

CRITL

HMIC:

PMIC:

ESD:

ADPE:

CRITL:

Hazmat (HMIC) N

Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

Precious Metals (PMIC) U

Precious metal content is unknown

Criticality X

The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.

Identification Codes

HMIC: Hazardous Material Indicator Code. A one position code that identifies a hazardous item.

PMIC: Precious Metal Indicator Code. A one position code which identifies items that have precious metals as part of their content. precious metals are those metals generally considered to be uncommon, highly valuable, and relatively superior in certain properties such as resistance to corrosion and electrical conductivity.

ESD: Electrostatic Discharge. Indicates if an item is susceptible to electrostatic discharge or electromagnetic interference damage. electrostatic discharge damage occurs when an accumulation of static electricity generated by the relative motion or separation of materials is released to another item by direct contact. electromagnetic interference damage occurs when an item comes into proximity with an electrostatic or magnetic field.

ENAC: Enviromental Attribute Code. Identifies items with environmentally preferred characteristics.

CRITL: Criticality Indicator Code. Indicates an item is technically critical by tolerance, fit, application, nuclear hardness properties, or other characteristics.