NSN 4820-00-018-2154

Check Valve
DEMIL
Shelf Life
UOM
NIIN
Demil:
NO
Shelf Life:
N/A
UOM:
--
NIIN:
000182154

Pricing & Availability

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Definition Definition of approved item name (AIN): "VALVE,CHECK"

A valve permitting flow in one direction only. It does not have a stem, except when equipped with a lever and weight and has no pressure adjustment. It may be inline or cartridge (manifold) design.

4820-00-018-2154 Spec. NSN part characteristics

MRC
Name
Detail
MRC:
AAAR
Pipe Size Accommodated
1.500 inches all ends
MRC:
ADQU
Flow Control Device
Disk
MRC:
AECS
Bolt Hole Quantity
4 1st end
MRC:
AEHZ
Maximum Operating Temp
550.0 degrees fahrenheit single response
MRC:
AQLR
Valve Operation Method
Automatic
MRC:
ARKN
Flange Shape
Round with holes 1st end
MRC:
AWLS
Connection Type
Flange 1st end
MRC:
BBJX
Mounting Position
Horizontal
MRC:
CQGM
Maximum Operating Pressure
500.0 pounds per square inch 2nd response
MRC:
CWCD
Outside Diameter
6.125 inches 1st end
MRC:
CWCF
Face To Face Distance
7.125 inches
MRC:
CWCQ
Bolt Hole Diameter
0.875 inches 1st end
MRC:
CWCT
Bolt Circle Diameter
4.500 inches 1st end
MRC:
CWDF
Flange Face Design
Plain 1st end
MRC:
MATT
Material
Copper alloy body
MRC:
MEDA
Media For Which Designed
Water-oil-gas single response
MRC:
STYL
Style Designator
Straight thru

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:
564
Cage Code:
48422
RNCC:
3
RNVC:
1
DAC:
3
RNAAC:
90
Status:
A
MSDS:
SADC:
Indicates a design/source control reference item
Inidicates part number has been superseded

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

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
05487
FIIG:
A530B0
Concept No.:
1
App. Key:
Cond. Code:
1
Status:
A

Part End Users MOE: Major organizational entities

Name
MOE Code
MOE Rule
PICA
DSOR
User:
TENNESSEE VALLEY AUTHORITY Tennessee Valley Authority
MOE:
TV
Rule:
G900
PICA:
90
DSOR:

Material & Special Handling Hazmat, Precious Metals, Criticality, Enviroment, and ESD

HMIC
PMIC
ESD
ENAC
ADPE
CRITL
HMIC:
N
PMIC:
U
ESD:
ESD:
ADPE:
CRITL:
X
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. Identifies a hazardous item.

PMIC: Precious Metal Indicator Code. 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.