Valve Seat

NSN: 4810-00-009-0423 | Model: 311903-25

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.

NSN Properties and Flags

NATO Stock Number

4810-00-009-0423

DEMIL

Flange Diameter

Between 0.374 inches and 0.375 inches

Body Outside Diameter

Between 0.240 inches and 0.260 inches

Body Inside Diameter

Between 0.114 inches and 0.118 inches

Seat Radius

0.078 inches

Flange Seat To Disk End Height

0.147 mils and 0.163 centimeters

Under Flange Height

Between 0.269 inches and 0.275 inches

Seating Surface Shape

Flat

Special Features

Four slots 0.070 in. Max spaced 91 degrees max apart

Material

Steel

Material Specification

Mil-s-7720, comp 302 military specification single material response

Style Designator

Plain flanged

Fsc Application Data

Valve, temperatore control system

Pricing and Availability

Send us a request for quote using the form below. Our team will contact you with an up to date pricing and availability quote ASAP.

Certified Quality Assurance

ISO 9001:2015 + AS9120B
Counterfeit Parts Prevention
100% Product Inspections
7 Year Record Retention
On Time Delivery
HAZMAT Certified
Worldwide Shipping

NSN 4810-00-009-0423 Datasheet

Supply Class (FSC):

Powered Valves

Cross Reference:

311903-25
311903-25

Cage Codes:

Honeywell International Inc. (CAGE 59364)
Honeywell International Inc. (CAGE 99193)

Schedule B & Trade:

Schedule B: 8481909090 (NAICS 332911)

Parts of taps, cocks, valves and similar appliances, nesoi
SITC: 74790

Parts for taps, cocks, valves and similar appliances for pipes, boiler shells, tanks, etc.
End Use: 21180

Industrial machines, other

Identification:

HMIC

N - Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

PMIC

A - Item does not contain precious metal.

ADPE

- Represents items with no adp components

CRITL

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

Freight Information:

NMFC:

051080 - Faucets, bibcocks, gates valves
WCC:

576 - Metal and metal products, nos, (less than 35 feet)
SHC:

9 - Other or no special handling required (sh)
ADC:

A - Shipment is not a consolidation and does not exceed 84 inches in any dimension.
ACC:

B - Construction materials: includes paint and related materials, prefabricated building, wood products, metal and composition mater
LTL:

W - Rating variable
TCC:

Z - No special type of cargo code applicable

NSN Management Codes:

SOS
Sms
AAC
Z
Quantity per pack
1
Unit of Measure
Ea
Shelf Life
N/A
Classification Control
U
MGMT_CTL
9b-----
Repariability

Questions & Answers:
What are the historical prices recorded for this stock number?
Historical data shows pricing from $1,277.17 to $2,128.61..
Does NSN 4810-00-009-0423 have a shelf life?
No. There is no shelf life applicable for this NSN.
What NATO entities are users of this NSN?
Department Of The Navy
What is the NIIN of NSN 4810-00-009-0423?
000090423 or 00-009-0423
Does NSN 4810-00-009-0423 require demilitarization?
Yes - ITAR Controlled
What is the most recent solicitation for NSN 4810-00-009-0423?
No solicitations for this NSN.
When was this national stock number assigned to the federal catalog?
Jul 29, 1972