PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A48377PC3Seat,valve

Emerson Automation Solutions Final Control Us Lp Div Navy Product Team · NSN 4820-00-869-3345 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-869-3345 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-869-3345. Primary manufacturer part number: A48377PC3.
Features
  • Seat,valve — FSC 4820
  • Material: STEEL CORROSION RESISTING OVERALL
  • Body Stepped Inside Diameter: 2.500 INCHES NOMINAL SECOND STEP IN
  • Under Flange Height: 6.000 INCHES NOMINAL IN
  • Thread Length: 0.875 INCHES NOMINAL SINGLE THREADED PORTION IN
  • Seating Surface Shape: FLAT
  • Thread Class: 2A SINGLE THREADED PORTION A
  • Flange Diameter: 5.380 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 4820-00-869-3345, 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 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4820-00-869-3345
Primary Part NumberA48377PC3
Item NameSeat,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerEmerson Automation Solutions Final Control Us Lp Div Navy Product Team
StatusCANCELLED
MaterialSTEEL CORROSION RESISTING OVERALL
Body Stepped Inside Diameter2.500 INCHES NOMINAL SECOND STEP IN
Under Flange Height6.000 INCHES NOMINAL IN
Thread Length0.875 INCHES NOMINAL SINGLE THREADED PORTION IN
Seating Surface ShapeFLAT
Thread Class2A SINGLE THREADED PORTION A
Flange Diameter5.380 INCHES NOMINAL IN
Thread Quantity Per Inch14 SINGLE THREADED PORTION
Style DesignatorTHREADED FLANGED
Flange Seat to Disk End Height0.750 INCHES NOMINAL IN
Nominal Thread Size3.250 INCHES SINGLE THREADED PORTION IN
Taper Minor Diameter1.625 INCHES NOMINAL IN
Thread Series DesignatorUNS SINGLE THREADED PORTION
Taper Major Diameter2.815 INCHES NOMINAL IN
Seal Accommodation TypeGROOVED
Body Stepped Inside Diameter1.050 INCHES NOMINAL FIRST STEP IN
Taper Length3.125 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 9
4730-00-260-3184 INTERCHANGEABLE
Coupling,pipe
5999-00-493-144808-0601 INTERCHANGEABLE
Wire Mesh,knitted
Parker-Hannifin Corporation Dba Pneutronics Div Chomerics Division
3940-00-544-3688 INTERCHANGEABLE
Adapter,hoisting
5930-00-918-4301 INTERCHANGEABLE
Switch,toggle
2920-01-140-615280601 INTERCHANGEABLE
Switch,lock,ignition
Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp.
5950-01-227-7673S8906 INTERCHANGEABLE
Transformer,power
Abbott Technologies, Inc
5995-01-242-97985186947 INTERCHANGEABLE
Heater Assembly
Technical Heaters, Inc. Dba Technical Heaters Inc
1005-01-360-193082066 INTERCHANGEABLE
Magazine Catch
Barrett Firearms Manufacturing, Inc. Dba Barrett Firearms Manufacturing Inc
8415-01-627-977080601 INTERCHANGEABLE
Gloves,chemical Protective
Kappler Inc
Cross-Reference Index
Part NumberManufacturer
A48377PC3 PRIMARY Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)
48377PC3 Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)
80601 PRIMARY Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)
82066L1 Naval Inventory Control Point Mechanicsburg (USA)
080601 PRIMARY Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)
82066 Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)
Related Parts
4730-00-260-3184INTERCHANGEABLE
COUPLING,PIPE
5999-00-493-1448INTERCHANGEABLE
WIRE MESH,KNITTED
08-0601
3940-00-544-3688INTERCHANGEABLE
ADAPTER,HOISTING
5930-00-918-4301INTERCHANGEABLE
SWITCH,TOGGLE
2920-01-140-6152INTERCHANGEABLE
SWITCH,LOCK,IGNITION
80601
5950-01-227-7673INTERCHANGEABLE
TRANSFORMER,POWER
S8906
5995-01-242-9798INTERCHANGEABLE
HEATER ASSEMBLY
5186947
1005-01-360-1930INTERCHANGEABLE
MAGAZINE CATCH
82066
8415-01-627-9770INTERCHANGEABLE
GLOVES,CHEMICAL PROTECTIVE
80601

Frequently Asked Questions

What is NSN 4820-00-869-3345?

NSN 4820-00-869-3345 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 4820-00-869-3345?

NSN 4820-00-869-3345 has 6 cross-referenced part numbers: A48377PC3 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), 48377PC3 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), 80601 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), 82066L1 (Naval Inventory Control Point Mechanicsburg), 080601 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team) and 1 more.

What NSN replaces 4820-00-869-3345?

There are 9 known substitutes for 4820-00-869-3345: 4730-00-260-3184, 5999-00-493-1448, 3940-00-544-3688 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of A48377PC3?

Key specifications for A48377PC3: Material: STEEL CORROSION RESISTING OVERALL; Body Stepped Inside Diameter: 2.500 INCHES NOMINAL SECOND STEP IN; Under Flange Height: 6.000 INCHES NOMINAL IN; Thread Length: 0.875 INCHES NOMINAL SINGLE THREADED PORTION IN. 18 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4820-00-869-3345 still in active supply?

NSN 4820-00-869-3345 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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