NSN 4820-00-403-1422

Check Valve
DEMIL
Shelf Life
UOM
NIIN
Demil:
NO
Shelf Life:
N/A
UOM:
1 EA
NIIN:
004031422

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Inventory

 

This product may be available in the following quantities and conditions.

  • NS: 1

Please note that inventory for this NSN was updated 08/20/2025 and may have changed since then. Request a quote for up to date pricing and availability.

Product 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.

4820-00-403-1422 Spec. NSN part characteristics

MRC
Name
Detail
MRC:
AAJD
Thread Class
3a 1st end
MRC:
AAJF
Thread Direction
Right-hand 1st end
MRC:
ADQU
Flow Control Device
Poppet
MRC:
ADSU
Disk Loading Method
Spring
MRC:
AHNC
Connection Style
Flareless 1st end
MRC:
AQLR
Valve Operation Method
Automatic
MRC:
AWLS
Connection Type
Threaded external tube 1st end
MRC:
BBJX
Mounting Position
Horizontal or vertical
MRC:
CMLP
Thready Qty Per Inch (tpi)
12 1st end
MRC:
CQGM
Maximum Operating Pressure
3000.0 pounds per square inch single response
MRC:
CQJX
Thread Size
1.875 inches 1st end
MRC:
CQRB
Seat Angle
12.0 degrees 1st end
MRC:
CWFD
Outside Diameter Tube Accommodated
1.500 inches 1st end
MRC:
MATT
Material
Copper alloy seat
MRC:
MEDA
Media For Which Designed
Hydraulic fluid, phosphate-ester base single response
MRC:
STYL
Style Designator
Straight thru
MRC:
THSD
Thread Series Designator
Unj 1st end

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:
418420-2
Cage Code:
80020
RNCC:
3
RNVC:
2
DAC:
1
RNAAC:
KE
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Inidicates part number has been superseded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

Special material and handling

HMIC
PMIC
ESD
ENAC
ADPE
CRITL
HMIC:
N
PMIC:
A
ESD:
ESD:
ADPE:
0
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) A

Item does not contain precious metal.

ADPE 0

Represents items with no adp components

Criticality X

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

National motor freight and handling

NMFC
Class
UFC
LTL
LCL
WCC
TCC
SHC
ADC
ACC
NMFC:
127220
NMF Description:
Pressure Reg/red/relief Valves Noi
UFC:
64490
LTL:
77.5
LCL:
77.5
WCC:
594
TCC:
Z
SHC:
9
ADC:
A
ACC:
V

Freight Codes Definitions:

Cargo Type (TCC) Z

No special type of cargo code applicable.

Water Commodity (WCC) 594

Pumps and parts, (machinery and parts),(less than 35 feet).

Air Commodity (ACC) V

Trailers, vehicles, machinery, shop and warehouse equipment and supplies including special tools and equipment, ground servicing.

Air Dimensions (ADC) A

Shipment is not a consolidation and does not exceed 84 inches in any dimension.

Air Special Handling (SHC) 9

Other or no special handling required (sh)

DLA Forecast / History

Maritime Supply Chain
07/2016
6.00