PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

810-303-0070Seat,valve

Emerson Automation Solutions Final Control Us Lp Div Navy Product Team · NSN 4820-00-097-1579 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-097-1579 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-097-1579. Primary manufacturer part number: 810-303-0070.
Features
  • Seat,valve — FSC 4820
  • Flange Diameter: 1.812 INCHES NOMINAL IN
  • Seating Surface Shape: ANGULAR
  • Style Designator: PLAIN FLANGED
  • Material: STEEL CORROSION RESISTING OVERALL
  • Under Flange Height: 2.212 INCHES NOMINAL IN
  • Seat Angle in Deg: 45.000 NOMINAL
  • Body Outside Diameter: 1.500 INCHES NOMINAL IN
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Steel Corrosion Resisting Overall construction
General Description

The Seat,valve, cataloged under National Stock Number 4820-00-097-1579, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Emerson Automation Solutions Final Control Us Lp Div Navy Product Team. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4820-00-097-1579
Primary Part Number810-303-0070
Item NameSeat,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerEmerson Automation Solutions Final Control Us Lp Div Navy Product Team
StatusCANCELLED
Flange Diameter1.812 INCHES NOMINAL IN
Seating Surface ShapeANGULAR
Style DesignatorPLAIN FLANGED
MaterialSTEEL CORROSION RESISTING OVERALL
Under Flange Height2.212 INCHES NOMINAL IN
Seat Angle in Deg45.000 NOMINAL
Body Outside Diameter1.500 INCHES NOMINAL IN
Flange Seat to Disk End Height0.595 INCHES NOMINAL IN
Body Inside Diameter1.250 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5305-00-206-18086348296L INTERCHANGEABLE
Screw,machine
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5305-00-275-3967 INTERCHANGEABLE
Screw,machine
3040-00-339-448521U1141PC4134 INTERCHANGEABLE
Lining,bearing Half
Naval Ship Systems Command
3040-00-343-6625 INTERCHANGEABLE
Shaft,drive,flexible
5965-00-434-7617 INTERCHANGEABLE
Microphone Element
5305-00-966-46314134 INTERCHANGEABLE
Setscrew
Wakmann Watch Company Inc
3930-00-971-87584134 INTERCHANGEABLE
Cap,valve
Husco International Inc
6830-01-005-7525 INTERCHANGEABLE
Ethylene Oxide
5950-01-079-1288 INTERCHANGEABLE
Coil,radio Frequency
6532-01-144-92864134 INTERCHANGEABLE
Footwear Covers,operating Room
Precept Inc
Cross-Reference Index
Part NumberManufacturer
010-303-0070 Kunkle Industries Inc Lonergan Valve Div (USA)
41-3-4 Kunkle Industries Inc Lonergan Valve Div (USA)
810-303-0070 Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
010-303-0070 Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
810-303-0070 PRIMARY Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)
41-3-102 Kunkle Industries Inc Lonergan Valve Div (USA)
810-303-0070 Kunkle Industries Inc Lonergan Valve Div (USA)
0103030070 PRIMARY Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)
Related Parts
5305-00-206-1808INTERCHANGEABLE
SCREW,MACHINE
6348296L
5305-00-275-3967INTERCHANGEABLE
SCREW,MACHINE
3040-00-339-4485INTERCHANGEABLE
LINING,BEARING HALF
21U1141PC4134
3040-00-343-6625INTERCHANGEABLE
SHAFT,DRIVE,FLEXIBLE
5965-00-434-7617INTERCHANGEABLE
MICROPHONE ELEMENT
5305-00-966-4631INTERCHANGEABLE
SETSCREW
4134
3930-00-971-8758INTERCHANGEABLE
CAP,VALVE
4134
6830-01-005-7525INTERCHANGEABLE
ETHYLENE OXIDE
5950-01-079-1288INTERCHANGEABLE
COIL,RADIO FREQUENCY
6532-01-144-9286INTERCHANGEABLE
FOOTWEAR COVERS,OPERATING ROOM
4134
4320-01-251-6545INTERCHANGEABLE
PUMP ASSEMBLY,HYDRA
4134
5955-01-277-0762INTERCHANGEABLE
CRYSTAL UNIT,QUARTZ
128C850H04

Frequently Asked Questions

What is NSN 4820-00-097-1579?

NSN 4820-00-097-1579 is a Seat,valve, manufactured by Emerson Automation Solutions Final Control Us Lp Div Navy Product Team, classified under FSC 4820 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4820-00-097-1579?

NSN 4820-00-097-1579 has 8 cross-referenced part numbers: 010-303-0070 (Kunkle Industries Inc Lonergan Valve Div), 41-3-4 (Kunkle Industries Inc Lonergan Valve Div), 810-303-0070 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 010-303-0070 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 810-303-0070 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team) and 3 more.

What NSN replaces 4820-00-097-1579?

There are 12 known substitutes for 4820-00-097-1579: 5305-00-206-1808, 5305-00-275-3967, 3040-00-339-4485 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 810-303-0070?

Key specifications for 810-303-0070: Flange Diameter: 1.812 INCHES NOMINAL IN; Seating Surface Shape: ANGULAR; Style Designator: PLAIN FLANGED; Material: STEEL CORROSION RESISTING OVERALL. 9 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4820-00-097-1579 still in active supply?

NSN 4820-00-097-1579 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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