Valve Seat

NSN: 4810-00-020-2978 | Model: 580245

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

4810-00-020-2978

DEMIL

Flange Diameter

Between 3.965 inches and 3.969 inches

Body Outside Diameter

Between 2.280 inches and 2.320 inches

Body Inside Diameter

Between 1.890 inches and 1.910 inches

Flange Seat To Disk End Height

0.064 mils and 0.067 centimeters

Under Flange Height

Between 0.167 inches and 0.173 inches

Seal Accommodation Type

Grooved

Seating Surface Shape

Angular

Material

Steel

Material Specification

Ams 5510 assn standard single material response

Style Designator

Plain flanged

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 4810-00-020-2978 Datasheet

Supply Class (FSC):

Powered Valves

Cross Reference:

580245

Cage Codes:

United Technologies Corporation (CAGE 77445)

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:

594 - Pumps and parts, (machinery and parts),(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:

V - Trailers, vehicles, machinery, shop and warehouse equipment and supplies including special tools and equipment, ground servicing
LTL:

W - Rating variable
TCC:

Z - No special type of cargo code applicable

NSN Management Codes:

SOS
Sms
AAC
J
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 $19.28 to $32.13..
Does NSN 4810-00-020-2978 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 4810-00-020-2978?
000202978 or 00-020-2978
Does NSN 4810-00-020-2978 require demilitarization?
Yes - ITAR Controlled
What is the most recent solicitation for NSN 4810-00-020-2978?
No solicitations for this NSN.
When was this national stock number assigned to the federal catalog?
Apr 29, 1967