PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

N804200059Seat,valve

Leslie Controls, Inc. Dba Leslie Controls Inc · NSN 4820-01-495-7903 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-495-7903 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-495-7903. Primary manufacturer part number: N804200059.
Features
  • Seat,valve — FSC 4820
  • 3 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 4820-01-495-7903, 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 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 9 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
NSN4820-01-495-7903
Primary Part NumberN804200059
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 9
4820-00-375-59611"150#FLGDDONSAND1/2"TRIM3F6J2RL INTERCHANGEABLE
Valve,globe
Leslie Controls, Inc. Dba Leslie Controls Inc
4820-01-191-889538538 INTERCHANGEABLE
Stem,fluid Valve
Leslie Controls, Inc. Dba Leslie Controls Inc
4820-01-196-1355N385150058 INTERCHANGEABLE
Stem,fluid Valve
Leslie Controls, Inc. Dba Leslie Controls Inc
4820-01-207-1144N38869 INTERCHANGEABLE
Cap,valve
Leslie Controls, Inc. Dba Leslie Controls Inc
4820-01-304-2915KMC-16606N-3A INTERCHANGEABLE
Disk,valve
Krobach Mfg. Corp. Dba Krobach Manufacturing Corp
4810-01-448-933118356N 55 WITH H.O.D. INTERCHANGEABLE
Actuator,electromechanical,rotar
Leslie Controls, Inc. Dba Leslie Controls Inc
4820-01-465-4273DDONS 1IN 600FLG 3B26J2RL W/HOD INTERCHANGEABLE
Valve,diaphragm,stop
Leslie Controls, Inc. Dba Leslie Controls Inc
5365-01-484-2553N70432 INTERCHANGEABLE
Spacer,sleeve
Leslie Controls, Inc. Dba Leslie Controls Inc
4820-01-495-5632Y101946251 INTERCHANGEABLE
Valve,globe
Leslie Controls, Inc. Dba Leslie Controls Inc
Cross-Reference Index
Part NumberManufacturer
16606N Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
CD34837N BOM(16606N) PC 3R Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
N804200059 PRIMARY Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
Related Parts
4820-00-375-5961INTERCHANGEABLE
VALVE,GLOBE
1"150#FLGDDONSAND1/2"TRIM3F6J2RL
4820-01-191-8895INTERCHANGEABLE
STEM,FLUID VALVE
38538
4820-01-196-1355INTERCHANGEABLE
STEM,FLUID VALVE
N385150058
4820-01-207-1144INTERCHANGEABLE
CAP,VALVE
N38869
4820-01-304-2915INTERCHANGEABLE
DISK,VALVE
KMC-16606N-3A
4810-01-448-9331INTERCHANGEABLE
ACTUATOR,ELECTROMECHANICAL,ROTAR
18356N 55 WITH H.O.D.
4820-01-465-4273INTERCHANGEABLE
VALVE,DIAPHRAGM,STOP
DDONS 1IN 600FLG 3B26J2RL W/HOD
5365-01-484-2553INTERCHANGEABLE
SPACER,SLEEVE
N70432
4820-01-495-5632INTERCHANGEABLE
VALVE,GLOBE
Y101946251

Frequently Asked Questions

What is NSN 4820-01-495-7903?

NSN 4820-01-495-7903 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 4820-01-495-7903?

NSN 4820-01-495-7903 has 3 cross-referenced part numbers: 16606N (Leslie Controls, Inc. Dba Leslie Controls Inc), CD34837N BOM(16606N) PC 3R (Leslie Controls, Inc. Dba Leslie Controls Inc), N804200059 (Leslie Controls, Inc. Dba Leslie Controls Inc).

What NSN replaces 4820-01-495-7903?

There are 9 known substitutes for 4820-01-495-7903: 4820-00-375-5961, 4820-01-191-8895, 4820-01-196-1355 and 6 more. Verify interchangeability with system specifications before substitution.

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