NSN 4820-00-351-6426 NIIN 003516426 — Valve Seat

NSN
Item Name
Assigned
DEMIL
Shelf Life
UOM
Using Services
NSN:
4820-00-351-6426
4820003516426
Description:
SEAT,VALVE
NSN Assigned:
01-JAN-61
DEMIL:
NO
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
AS9120 Certified by SAI Global

4820-00-351-6426 Specification Set by the OEM (see RNCC code 3)

Thread Class AAJD:

2a single threaded portion

Err Default AASA:

0.312in. single threaded portion ⁓5/16"

Flange Diameter ABKK:

0.875in.

Body Inside Diameter ADAS:

0.125in.

Flange Seat To Disk End Height AJRF:

0.156in.

Under Flange Height AJRM:

0.562in.

Seal Accommodation Type AJSH:

grooved

Nominal Thread Size CQJX:

0.312in. single threaded portion ⁓5/16"

Seating Surface Shape CQKM:

flat

Special Features FEAT:

threaded internal on flanged end, 0.312-24 unf rh

Material MATT:

steel

Style Designator STYL:

threaded flanged

Thread Series Designator THSD:

unf single threaded portion

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:
2A5779
Cage Code:
11083
RNCC:
3
RNVC:
2
DAC:
5
RNAAC:
AX
Status:
A
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:
A
Cond. Code:
2
Status:
A
STYLE DESIGNATOR THREADED FLANGED style nsn 4820-00-351-6426
STYLE DESIGNATOR THREADED FLANGED style nsn 4820-00-351-6426
STYLE DESIGNATOR THREADED FLANGED style nsn 4820-00-351-6426
STYLE DESIGNATOR THREADED FLANGED style nsn 4820-00-351-6426
STYLE DESIGNATOR THREADED FLANGED style nsn 4820-00-351-6426
STYLE DESIGNATOR THREADED FLANGED style nsn 4820-00-351-6426

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.

4820-00-351-6426 Material 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. 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.