NSN 4820-00-344-1449 NIIN 003441449 — Valve Seat

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NSN

Item Name

Assigned

DEMIL

Shelf Life

UOM

Using Services

NSN:

		4820-00-344-1449
4820003441449

Description:

SEAT,VALVE

NSN Assigned:

01-JAN-63

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

4820-00-344-1449 Specification Set by the OEM (see RNCC code 3)

Flange Diameter ABKK:

2.633in. and 2.653in.

Body Outside Diameter ADAR:

2.733in. and 2.777in.

Body Inside Diameter ADAS:

2.182in. and 2.192in.

Flange Seat To Disk End Height AJRF:

0.436in. and 0.438in.

Under Flange Height AJRM:

0.136in. and 0.144in.

Seat Angle In Deg AJSG:

45.000

Hardness Rating CQFM:

90.0 rockwell b and 105.0 rockwell b

Seating Surface Shape CQKM:

angular

Material MATT:

steel

Material Document And Classification MDCL:

ams 5700 assn std single material response

Style Designator STYL:

plain flanged

Fsc Application Data ZZZV:

acft eng R1830

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:

17181P20

Cage Code:

77445

RNCC:

RNVC:

DAC:

RNAAC:

Status:

MSDS:

SADC:

Part Number:

17181P20

Cage Code:

00198

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:

22113

FIIG:

A15500

Concept No.:

App. Key:

Cond. Code:

Status:

STYLE DESIGNATOR PLAIN FLANGED style nsn 4820-00-344-1449

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.

4820-00-344-1449 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.