PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

0103050073Seat,valve

Emerson Automation Solutions Final Control Us Lp Div Navy Product Team · NSN 4820-00-036-1778 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-036-1778 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-036-1778. Primary manufacturer part number: 0103050073.
Features
  • Seat,valve — FSC 4820
  • Thread Quantity Per Inch: 16 SINGLE THREADED PORTION
  • Style Designator: PLAIN THREADED
  • Thread Class: 2A SINGLE THREADED PORTION A
  • Material: STEEL CORROSION RESISTING OVERALL
  • Body Inside Diameter: 2.500 INCHES NOMINAL IN
  • Seating Surface Shape: ANGULAR
  • Thread Length: 1.438 INCHES NOMINAL SINGLE THREADED PORTION 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 4820-00-036-1778, 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 9 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: Active.

Technical Specifications
ParameterValue
NSN4820-00-036-1778
Primary Part Number0103050073
Item NameSeat,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerEmerson Automation Solutions Final Control Us Lp Div Navy Product Team
StatusACTIVE
Thread Quantity Per Inch16 SINGLE THREADED PORTION
Style DesignatorPLAIN THREADED
Thread Class2A SINGLE THREADED PORTION A
MaterialSTEEL CORROSION RESISTING OVERALL
Body Inside Diameter2.500 INCHES NOMINAL IN
Seating Surface ShapeANGULAR
Thread Length1.438 INCHES NOMINAL SINGLE THREADED PORTION IN
Seat Angle in Deg45.000 NOMINAL
Nominal Thread Size3.125 INCHES SINGLE THREADED PORTION IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
4820-00-036-17760103020073 INTERCHANGEABLE
Seat,valve
Anderson Greenwood Lp Dba Anderson Greenwood Crosby
5330-00-064-6993N4137 INTERCHANGEABLE
Ring,wiper
Husco International Inc
5977-00-065-47354733 INTERCHANGEABLE
Brush Set,electrical Contact
Magtrol Inc. Dba Magtrol Inc
5815-00-065-60854137 INTERCHANGEABLE
Post,eccentric Stop
Marine Corps Systems Command Div Marine Corps Systems Command Technical Data Repository Customer Service
4920-00-225-33384137 INTERCHANGEABLE
Cover,filter
Jaidinger Manufacturing Co Inc Dba Jaidinger Manufacturing Co Inc
5360-00-526-2874 INTERCHANGEABLE
Spring,helical,compression
3030-00-676-7723 INTERCHANGEABLE
Belts,v,matched Set
5305-00-966-46284137 INTERCHANGEABLE
Screw,setting Wheel
Wakmann Watch Company Inc
3110-01-047-76864137 INTERCHANGEABLE
Ring,bearing,outer
Berliss Bearing Co
3040-01-282-84144137 INTERCHANGEABLE
Brake Shoe
Ingersoll-Rand Co Material Handling Div
Cross-Reference Index
Part NumberManufacturer
010.302.0073 Kunkle Industries Inc Lonergan Valve Div (USA)
0103050073 Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
41-3-7 Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)
0361778 Kunkle Industries Inc Lonergan Valve Div (USA)
L-3220-A PIECE Kunkle Industries Inc Lonergan Valve Div (USA)
41-3-7 Kunkle Industries Inc Lonergan Valve Div (USA)
0103050073 PRIMARY Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)
NMP419PC41 Kunkle Industries Inc Lonergan Valve Div (USA)
41-3-7 Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
Related Parts
4820-00-036-1776INTERCHANGEABLE
SEAT,VALVE
0103020073
5330-00-064-6993INTERCHANGEABLE
RING,WIPER
N4137
5977-00-065-4735INTERCHANGEABLE
BRUSH SET,ELECTRICAL CONTACT
4733
5815-00-065-6085INTERCHANGEABLE
POST,ECCENTRIC STOP
4137
4920-00-225-3338INTERCHANGEABLE
COVER,FILTER
4137
5360-00-526-2874INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
3030-00-676-7723INTERCHANGEABLE
BELTS,V,MATCHED SET
5305-00-966-4628INTERCHANGEABLE
SCREW,SETTING WHEEL
4137
3110-01-047-7686INTERCHANGEABLE
RING,BEARING,OUTER
4137
3040-01-282-8414INTERCHANGEABLE
BRAKE SHOE
4137
5310-01-417-5783INTERCHANGEABLE
WASHER,FLAT
W004013-007
7530-01-464-6061INTERCHANGEABLE
FORM,PRINTED
4137

Frequently Asked Questions

What is NSN 4820-00-036-1778?

NSN 4820-00-036-1778 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: active.

What are the part numbers for NSN 4820-00-036-1778?

NSN 4820-00-036-1778 has 9 cross-referenced part numbers: 010.302.0073 (Kunkle Industries Inc Lonergan Valve Div), 0103050073 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 41-3-7 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), 0361778 (Kunkle Industries Inc Lonergan Valve Div), L-3220-A PIECE (Kunkle Industries Inc Lonergan Valve Div) and 4 more.

What NSN replaces 4820-00-036-1778?

There are 12 known substitutes for 4820-00-036-1778: 4820-00-036-1776, 5330-00-064-6993, 5977-00-065-4735 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 0103050073?

Key specifications for 0103050073: Thread Quantity Per Inch: 16 SINGLE THREADED PORTION; Style Designator: PLAIN THREADED; Thread Class: 2A SINGLE THREADED PORTION A; Overall Height: 1.875 INCHES NOMINAL IN. 10 total characteristics are documented in the Federal Logistics Information System.

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