PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

012-500-0010Seat,valve

Emerson Automation Solutions Final Control Us Lp Div Navy Product Team · NSN 4820-00-343-6980 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-343-6980 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-343-6980. Primary manufacturer part number: 012-500-0010.
Features
  • Seat,valve — FSC 4820
  • Thread Series Designator: UNS SINGLE THREADED PORTION
  • Style Designator: PLAIN THREADED
  • Material: NICKEL ALLOY OVERALL
  • Thread Length: 0.500 INCHES NOMINAL SINGLE THREADED PORTION IN
  • Nominal Thread Size: 4.938 INCHES SINGLE THREADED PORTION IN
  • Seat Angle in Deg: 45.000 NOMINAL
  • Body Inside Diameter: 4.000 INCHES MINIMUM AND 4.001 INCHES MAXIMUM IN
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Nickel Alloy Overall construction
General Description

The Seat,valve, cataloged under National Stock Number 4820-00-343-6980, 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 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-343-6980
Primary Part Number012-500-0010
Item NameSeat,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerEmerson Automation Solutions Final Control Us Lp Div Navy Product Team
StatusACTIVE
Thread Series DesignatorUNS SINGLE THREADED PORTION
Style DesignatorPLAIN THREADED
MaterialNICKEL ALLOY OVERALL
Thread Length0.500 INCHES NOMINAL SINGLE THREADED PORTION IN
Nominal Thread Size4.938 INCHES SINGLE THREADED PORTION IN
Seat Angle in Deg45.000 NOMINAL
Body Inside Diameter4.000 INCHES MINIMUM AND 4.001 INCHES MAXIMUM IN
Thread Class2A SINGLE THREADED PORTION A
Thread Quantity Per Inch14 SINGLE THREADED PORTION
Seating Surface ShapeANGULAR
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
4820-00-163-8524 INTERCHANGEABLE
Strainer,valve
4140-00-343-756651510 INTERCHANGEABLE
Impeller,fan,axial
Traulsen and Co Inc
5365-00-527-0230SCB69667-2 INTERCHANGEABLE
Shim
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5305-00-726-310310018762-087 INTERCHANGEABLE
Screw,machine
Us Army Aviation and Missile Command
4510-01-014-0063091-0160 INTERCHANGEABLE
Water Closet
Wallace-Murray Corp Eljer Plumbingware Div Vitreous China Plant
5310-01-239-7189515-10 INTERCHANGEABLE
Washer,flat
Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems
4820-01-538-2868012.500.0010 INTERCHANGEABLE
Seat,valve
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
5306-01-647-399951510 INTERCHANGEABLE
Rod,threaded End
Fastenal Company Dba Fastenal Co
Cross-Reference Index
Part NumberManufacturer
012-500-0010 PRIMARY Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)
012-500-0010 Kunkle Industries Inc Lonergan Valve Div (USA)
51-5-10 PRIMARY Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)
51-5-10 Kunkle Industries Inc Lonergan Valve Div (USA)
51-5-10 Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
012-500-0010 Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
Related Parts
4820-00-163-8524INTERCHANGEABLE
STRAINER,VALVE
4140-00-343-7566INTERCHANGEABLE
IMPELLER,FAN,AXIAL
51510
5365-00-527-0230INTERCHANGEABLE
SHIM
SCB69667-2
5305-00-726-3103INTERCHANGEABLE
SCREW,MACHINE
10018762-087
4510-01-014-0063INTERCHANGEABLE
WATER CLOSET
091-0160
5310-01-239-7189INTERCHANGEABLE
WASHER,FLAT
515-10
4820-01-538-2868INTERCHANGEABLE
SEAT,VALVE
012.500.0010
5306-01-647-3999INTERCHANGEABLE
ROD,THREADED END
51510

Frequently Asked Questions

What is NSN 4820-00-343-6980?

NSN 4820-00-343-6980 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 4820-00-343-6980?

NSN 4820-00-343-6980 has 6 cross-referenced part numbers: 012-500-0010 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), 012-500-0010 (Kunkle Industries Inc Lonergan Valve Div), 51-5-10 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), 51-5-10 (Kunkle Industries Inc Lonergan Valve Div), 51-5-10 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby) and 1 more.

What NSN replaces 4820-00-343-6980?

There are 8 known substitutes for 4820-00-343-6980: 4820-00-163-8524, 4140-00-343-7566, 5365-00-527-0230 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 012-500-0010?

Key specifications for 012-500-0010: Thread Series Designator: UNS SINGLE THREADED PORTION; Style Designator: PLAIN THREADED; Material: NICKEL ALLOY OVERALL; Thread Length: 0.500 INCHES NOMINAL SINGLE THREADED PORTION IN. 11 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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