PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

577560059Disk,valve

Leslie Controls, Inc. Dba Leslie Controls Inc · NSN 4820-01-366-7331 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-366-7331 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-366-7331. Primary manufacturer part number: 577560059.
Features
  • Disk,valve — FSC 4820
  • Material: STEEL
  • 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 Steel construction
General Description

The Disk,valve, cataloged under National Stock Number 4820-01-366-7331, 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 1 verified specification, 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-366-7331
Primary Part Number577560059
Item NameDisk,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerLeslie Controls, Inc. Dba Leslie Controls Inc
StatusACTIVE
MaterialSTEEL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
4820-01-162-0181N533910059 INTERCHANGEABLE
Disk,valve
Leslie Controls, Inc. Dba Leslie Controls Inc
4820-01-196-1353A44040 INTERCHANGEABLE
Stem,fluid Valve
Leslie Controls, Inc. Dba Leslie Controls Inc
4820-01-274-842243877-00-58 INTERCHANGEABLE
Seat,valve
Leslie Controls, Inc. Dba Leslie Controls Inc
4820-01-368-1572N440400059 INTERCHANGEABLE
Disk,valve
Leslie Controls, Inc. Dba Leslie Controls Inc
Cross-Reference Index
Part NumberManufacturer
577560059 PRIMARY Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
18500N Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
Related Parts
4820-01-162-0181INTERCHANGEABLE
DISK,VALVE
N533910059
4820-01-196-1353INTERCHANGEABLE
STEM,FLUID VALVE
A44040
4820-01-274-8422INTERCHANGEABLE
SEAT,VALVE
43877-00-58
4820-01-368-1572INTERCHANGEABLE
DISK,VALVE
N440400059

Frequently Asked Questions

What is NSN 4820-01-366-7331?

NSN 4820-01-366-7331 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 4820-01-366-7331?

NSN 4820-01-366-7331 has 2 cross-referenced part numbers: 577560059 (Leslie Controls, Inc. Dba Leslie Controls Inc), 18500N (Leslie Controls, Inc. Dba Leslie Controls Inc).

What NSN replaces 4820-01-366-7331?

There are 4 known substitutes for 4820-01-366-7331: 4820-01-162-0181, 4820-01-196-1353, 4820-01-274-8422 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 577560059?

Key specifications for 577560059: Special Features: VALVE SIZE 1.500IN IN; Material: STEEL. 2 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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