PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

N50659Seat,valve

Leslie Controls, Inc. Dba Leslie Controls Inc · NSN 4820-01-091-2651 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-091-2651 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-091-2651. Primary manufacturer part number: N50659.
Features
  • Seat,valve — FSC 4820
  • 2 verified cross-references
  • Primary manufacturer: Leslie Controls, Inc. Dba Leslie Controls Inc
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Seat,valve, cataloged under National Stock Number 4820-01-091-2651, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Leslie Controls, Inc. Dba Leslie Controls Inc. This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameSeat,valve
FSC / FSG4820 — No Item Name Available (FSG 48)
ManufacturersLeslie Controls, Inc. Dba Leslie Controls Inc (CAGE 35795)
Technical Specifications
ParameterValue
NSN4820-01-091-2651
Primary Part NumberN50659
Item NameSeat,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerLeslie Controls, Inc. Dba Leslie Controls Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
4820-00-200-0664CFA40614 INTERCHANGEABLE
Valve,globe
Curtis Dyna-Fog, Ltd.
3020-00-214-644850659 INTERCHANGEABLE
Gear,spur
Hamilton Sundstrand Corporation Dba Collins Aerospace
5950-00-497-8599163058 INTERCHANGEABLE
Transformer,power
Robert M. Hadley Company, Inc.
4320-00-780-583150659 INTERCHANGEABLE
Parts Kit,hydraulic Pump
Parker Hannifin Corporation Div Hydraulic Systems Division
5962-01-163-6281ICM7555MTV/883B INTERCHANGEABLE
Microcircuit,linear
Renesas Electronics America Inc
Cross-Reference Index
Part NumberManufacturer
N50659 PRIMARY Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
50659 Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
Related Parts
4820-00-200-0664INTERCHANGEABLE
VALVE,GLOBE
CFA40614
3020-00-214-6448INTERCHANGEABLE
GEAR,SPUR
50659
5950-00-497-8599INTERCHANGEABLE
TRANSFORMER,POWER
163058
4320-00-780-5831INTERCHANGEABLE
PARTS KIT,HYDRAULIC PUMP
50659
5962-01-163-6281INTERCHANGEABLE
MICROCIRCUIT,LINEAR
ICM7555MTV/883B

Frequently Asked Questions

What is NSN 4820-01-091-2651?

NSN 4820-01-091-2651 is a Seat,valve, manufactured by Leslie Controls, Inc. Dba Leslie Controls Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-091-2651?

NSN 4820-01-091-2651 has 2 cross-referenced part numbers: N50659 (Leslie Controls, Inc. Dba Leslie Controls Inc), 50659 (Leslie Controls, Inc. Dba Leslie Controls Inc).

What NSN replaces 4820-01-091-2651?

There are 5 known substitutes for 4820-01-091-2651: 4820-00-200-0664, 3020-00-214-6448, 5950-00-497-8599 and 2 more. Verify interchangeability with system specifications before substitution.

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