PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

N11780Disk,valve

Leslie Controls, Inc. Dba Leslie Controls Inc · NSN 4820-00-036-1541 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-036-1541 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-036-1541. Primary manufacturer part number: N11780.
Features
  • Disk,valve — FSC 4820
  • Outside Diameter: 1.315 INCHES NOMINAL IN
  • Seat Radius: 0.078 INCHES NOMINAL IN
  • Flange Seat to Disk End Height: 1.395 INCHES NOMINAL IN
  • Material: COPPER ALLOY
  • Shank Diameter: 0.375 INCHES NOMINAL IN
  • 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
  • Applications requiring Copper Alloy construction
General Description

The Disk,valve, cataloged under National Stock Number 4820-00-036-1541, 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. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-036-1541
Primary Part NumberN11780
Item NameDisk,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerLeslie Controls, Inc. Dba Leslie Controls Inc
StatusACTIVE
Outside Diameter1.315 INCHES NOMINAL IN
Seat Radius0.078 INCHES NOMINAL IN
Flange Seat to Disk End Height1.395 INCHES NOMINAL IN
MaterialCOPPER ALLOY
Shank Diameter0.375 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
5945-00-222-596211780 INTERCHANGEABLE
Relay,electromagnetic
Thales Usa, Inc. Div Air Mobility Solutions ("ams")
3455-00-246-034811780 INTERCHANGEABLE
Cutter,milling,woodruff Keyseat
Niagara Cutter Inc
6520-00-523-2150 INTERCHANGEABLE
Disk,abrasive
3120-00-661-8546EE13 INTERCHANGEABLE
Bearing,sleeve
Circor Naval Solutions Llc Dba Warren Pumps
3120-00-957-3310 INTERCHANGEABLE
Bearing,washer,thrust
4820-01-155-0209RK11780 INTERCHANGEABLE
Cock,drain
Parker-Hannifin Corporation Dba Racor Division Div Racor Division
5950-01-222-4442984717-4B INTERCHANGEABLE
Transformer,power
Raytheon Company Dba Raytheon
4820-01-223-0594 INTERCHANGEABLE
Valve Assembly,manifold
5340-01-439-530311780 INTERCHANGEABLE
Cap,protective,dust and Moisture
Rubber Industries, Inc. Dba Rubber Industries
7310-01-528-002011780 INTERCHANGEABLE
Stove,multi-Fuel Burner
Mountain Safety Research Inc
Cross-Reference Index
Part NumberManufacturer
N11780 PRIMARY Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
11780 Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
Related Parts
5945-00-222-5962INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
11780
3455-00-246-0348INTERCHANGEABLE
CUTTER,MILLING,WOODRUFF KEYSEAT
11780
6520-00-523-2150INTERCHANGEABLE
DISK,ABRASIVE
3120-00-661-8546INTERCHANGEABLE
BEARING,SLEEVE
EE13
3120-00-957-3310INTERCHANGEABLE
BEARING,WASHER,THRUST
4820-01-155-0209INTERCHANGEABLE
COCK,DRAIN
RK11780
5950-01-222-4442INTERCHANGEABLE
TRANSFORMER,POWER
984717-4B
4820-01-223-0594INTERCHANGEABLE
VALVE ASSEMBLY,MANIFOLD
5340-01-439-5303INTERCHANGEABLE
CAP,PROTECTIVE,DUST AND MOISTURE
11780
7310-01-528-0020INTERCHANGEABLE
STOVE,MULTI-FUEL BURNER
11780

Frequently Asked Questions

What is NSN 4820-00-036-1541?

NSN 4820-00-036-1541 is a Disk,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 4820-00-036-1541?

NSN 4820-00-036-1541 has 2 cross-referenced part numbers: N11780 (Leslie Controls, Inc. Dba Leslie Controls Inc), 11780 (Leslie Controls, Inc. Dba Leslie Controls Inc).

What NSN replaces 4820-00-036-1541?

There are 10 known substitutes for 4820-00-036-1541: 5945-00-222-5962, 3455-00-246-0348, 6520-00-523-2150 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of N11780?

Key specifications for N11780: Outside Diameter: 1.315 INCHES NOMINAL IN; Overall Height: 1.588 INCHES NOMINAL IN; Seat Radius: 0.078 INCHES NOMINAL IN; Flange Seat to Disk End Height: 1.395 INCHES NOMINAL IN. 6 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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