NSN 4820-00-393-4313

Valve Seat
DEMIL
Shelf Life
UOM
NIIN
Demil:
NO
Shelf Life:
N/A
UOM:
1 EA
NIIN:
003934313

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Inventory

 

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

  • NE: 1
  • NS: 1

Please note that inventory for this NSN was updated 08/12/2025 and may have changed since then. Request a quote for up to date pricing and availability.

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

A replaceable item designed to provide a stationary seating surface for a mating, moveable item such as a valve disk or the like. The body may have a flange of various shapes. For diesel and gasoline reciprocating engines, see insert, engine valve seat.

4820-00-393-4313 Spec. NSN part characteristics

MRC
Name
Detail
MRC:
ABKK
Flange Diameter
Between 1.498 inches and 1.499 inches
MRC:
ADAR
Body Outside Diameter
Between 1.248 inches and 1.250 inches
MRC:
ADAS
Body Inside Diameter
Between 0.312 inches and 0.313 inches
MRC:
AJRF
Flange Seat To Disk End Height
Between 0.311 inches and 0.313 inches
MRC:
AJRM
Under Flange Height
0.250 inches
MRC:
AJSG
Seat Angle In Deg
45.000
MRC:
CQKM
Seating Surface Shape
Angular
MRC:
MATT
Material
Stainless steel
MRC:
STYL
Style Designator
Plain flanged

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:
146-00230-1
Cage Code:
26505
RNCC:
3
RNVC:
2
DAC:
1
RNAAC:
AX
Status:
A
MSDS:
SADC:
Part Number:
575-3801-144430
Cage Code:
53711
RNCC:
C
RNVC:
1
DAC:
6
RNAAC:
AX
Status:
A
MSDS:
SADC:
AC
Part Number:
146-002-30-1
Cage Code:
26505
RNCC:
3
RNVC:
2
DAC:
5
RNAAC:
AX
Status:
A
MSDS:
SADC:
Part Number:
N645PC4-18
Cage Code:
26505
RNCC:
5
RNVC:
2
DAC:
5
RNAAC:
AX
Status:
A
MSDS:
SADC:
Part Number:
N278PC4-13
Cage Code:
26505
RNCC:
5
RNVC:
2
DAC:
5
RNAAC:
AX
Status:
A
MSDS:
SADC:
Part Number:
234501
Cage Code:
26505
RNCC:
5
RNVC:
9
DAC:
2
RNAAC:
AX
Status:
A
MSDS:
SADC:
Part Number:
575-3801-1444300REVAPC10
Cage Code:
80064
RNCC:
5
RNVC:
9
DAC:
5
RNAAC:
AX
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Inidicates part number has been superseded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:
22113
FIIG:
A15500
Concept No.:
App. Key:
A
Cond. Code:
2
Status:
A

Special material and handling

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.

Import and Export

Schedule B
NAIC
End Use
SITC
USDA
HITECH
Schedule B:
8481909090
NAICS:
332911
End Use Class:
21180
SITC:
74790
USDA:
1
HITECH:
0

Schedule B Codes Definitions:

Schedule B 8481909090

Parts Of Taps, Cocks, Valves and Similar Appliances, Nesoi

End Use Code 21180

Industrial Machines, Other

Standard Intl. Trade Class (SITC) 74790

Parts For Taps, Cocks, Valves and Similar Appliances For Pipes, Boiler Shells, Tanks, Etc.

National motor freight and handling

NMFC
Class
UFC
LTL
LCL
WCC
TCC
SHC
ADC
ACC
NMFC:
051080
NMF Description:
Gates Valves Bibcocks Faucets
UFC:
29300
LTL:
Rating variable
LCL:
--
WCC:
576
TCC:
Z
SHC:
9
ADC:
A
ACC:
B

Freight Codes Definitions:

Cargo Type (TCC) Z

No special type of cargo code applicable.

Water Commodity (WCC) 576

Metal and metal products, nos, (less than 35 feet).

Air Commodity (ACC) B

Construction materials: includes paint and related materials, prefabricated building, wood products, metal and composition mater.

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)