PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

452-819-120-420-046Gear Operator,valve

Emerson Automation Solutions Final Control Us Lp · NSN 4820-01-252-8484 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-252-8484 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-252-8484. Primary manufacturer part number: 452-819-120-420-046.
Features
  • Gear Operator,valve — FSC 4820
  • Material: IRON
  • Gear Type: WORM
  • Gear Ratio: 20 TO 1
  • Valve Type for Which Designed: BUTTERFLY
  • Valve Size for Which Designed: 8.000 INCHES IN
  • Features Provided: HANDWHEEL
  • 6 verified cross-references
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Power transmission and speed reduction
  • Rotary motion transfer
General Description

The Gear Operator,valve, cataloged under National Stock Number 4820-01-252-8484, 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. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4820-01-252-8484
Primary Part Number452-819-120-420-046
Item NameGear Operator,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerEmerson Automation Solutions Final Control Us Lp
StatusCANCELLED
MaterialIRON
Gear TypeWORM
Gear Ratio20 TO 1
Valve Type for Which DesignedBUTTERFLY
Valve Size for Which Designed8.000 INCHES IN
Features ProvidedHANDWHEEL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 8
5999-00-383-2215 INTERCHANGEABLE
Heater,thermal Release
5999-00-671-9447 INTERCHANGEABLE
Heater,thermal Release
6150-00-752-506010-319460-1 INTERCHANGEABLE
Lead,electrical
Unison Industries Llc
4820-00-822-4644 INTERCHANGEABLE
Valve,check
3040-01-157-6303 INTERCHANGEABLE
Cylinder Assembly,actuating,line
2610-01-194-621512504926 INTERCHANGEABLE
Tire,pneumatic,vehicular
U S Army Tank Automotive Command Amsta-Im-Mm
5950-01-339-03338509749-1 INTERCHANGEABLE
Transformer,radio Frequency
Honeywell International Inc. Dba Honeywell International
5340-01-507-253942014 INTERCHANGEABLE
Bumper
Moog Inc. Dba Ampac-Isp Corp
Cross-Reference Index
Part NumberManufacturer
452-819-120-420-046 PRIMARY Emerson Automation Solutions Final Control Us Lp (USA)
440-819-120-420-115 PRIMARY Emerson Automation Solutions Final Control Us Lp (USA)
440-819-120-420-117 Emerson Automation Solutions Final Control Us Lp (USA)
D420-8-12-440 Emerson Automation Solutions Final Control Us Lp (USA)
420-14 Emerson Automation Solutions Final Control Us Lp (USA)
D420-14-12-452 Emerson Automation Solutions Final Control Us Lp (USA)
Related Parts
5999-00-383-2215INTERCHANGEABLE
HEATER,THERMAL RELEASE
5999-00-671-9447INTERCHANGEABLE
HEATER,THERMAL RELEASE
6150-00-752-5060INTERCHANGEABLE
LEAD,ELECTRICAL
10-319460-1
4820-00-822-4644INTERCHANGEABLE
VALVE,CHECK
3040-01-157-6303INTERCHANGEABLE
CYLINDER ASSEMBLY,ACTUATING,LINE
2610-01-194-6215INTERCHANGEABLE
TIRE,PNEUMATIC,VEHICULAR
12504926
5950-01-339-0333INTERCHANGEABLE
TRANSFORMER,RADIO FREQUENCY
8509749-1
5340-01-507-2539INTERCHANGEABLE
BUMPER
42014

Frequently Asked Questions

What is NSN 4820-01-252-8484?

NSN 4820-01-252-8484 is a Gear Operator,valve, manufactured by Emerson Automation Solutions Final Control Us Lp, classified under FSC 4820 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4820-01-252-8484?

NSN 4820-01-252-8484 has 6 cross-referenced part numbers: 452-819-120-420-046 (Emerson Automation Solutions Final Control Us Lp), 440-819-120-420-115 (Emerson Automation Solutions Final Control Us Lp), 440-819-120-420-117 (Emerson Automation Solutions Final Control Us Lp), D420-8-12-440 (Emerson Automation Solutions Final Control Us Lp), 420-14 (Emerson Automation Solutions Final Control Us Lp) and 1 more.

What NSN replaces 4820-01-252-8484?

There are 8 known substitutes for 4820-01-252-8484: 5999-00-383-2215, 5999-00-671-9447, 6150-00-752-5060 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 452-819-120-420-046?

Key specifications for 452-819-120-420-046: Material: IRON; Gear Type: WORM; Gear Ratio: 20 TO 1; Valve Type for Which Designed: BUTTERFLY. 6 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4820-01-252-8484 still in active supply?

NSN 4820-01-252-8484 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.
PartsTable Design LLC · partstable.com