PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A42255Disk,valve

Leslie Controls, Inc. Dba Leslie Controls Inc · NSN 4820-01-262-1327 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-262-1327 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-262-1327. Primary manufacturer part number: A42255.
Features
  • Disk,valve — FSC 4820
  • Style Designator: POPPET
  • Shank Diameter: 0.426 INCHES NOMINAL IN
  • Material: STEEL CORROSION RESISTING
  • Flange Seat to Disk End Height: 2.500 INCHES NOMINAL IN
  • Flange Diameter: 1.152 INCHES NOMINAL IN
  • Seat Angle: 45.0 DEGREES NOMINAL
  • 2 verified cross-references
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Steel Corrosion Resisting construction
General Description

The Disk,valve, cataloged under National Stock Number 4820-01-262-1327, 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 6 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. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-262-1327
Primary Part NumberA42255
Item NameDisk,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerLeslie Controls, Inc. Dba Leslie Controls Inc
StatusACTIVE
Style DesignatorPOPPET
Shank Diameter0.426 INCHES NOMINAL IN
MaterialSTEEL CORROSION RESISTING
Flange Seat to Disk End Height2.500 INCHES NOMINAL IN
Flange Diameter1.152 INCHES NOMINAL IN
Seat Angle45.0 DEGREES NOMINAL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5950-00-369-94984032250-0701 INTERCHANGEABLE
Transformer,power
Honeywell International Inc Dba Honeywell
3455-00-982-5114 INTERCHANGEABLE
Cutter,milling,end
5950-00-990-8708 INTERCHANGEABLE
Transformer,power
9540-01-072-1722 INTERCHANGEABLE
Angle,structural
5962-01-088-856442255 INTERCHANGEABLE
Microcircuit,digital
Raytheon Company Div Rmd Strategic
Cross-Reference Index
Part NumberManufacturer
42255 Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
A42255 PRIMARY Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
Related Parts
5950-00-369-9498INTERCHANGEABLE
TRANSFORMER,POWER
4032250-0701
3455-00-982-5114INTERCHANGEABLE
CUTTER,MILLING,END
5950-00-990-8708INTERCHANGEABLE
TRANSFORMER,POWER
9540-01-072-1722INTERCHANGEABLE
ANGLE,STRUCTURAL
5962-01-088-8564INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
42255

Frequently Asked Questions

What is NSN 4820-01-262-1327?

NSN 4820-01-262-1327 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 4820-01-262-1327?

NSN 4820-01-262-1327 has 2 cross-referenced part numbers: 42255 (Leslie Controls, Inc. Dba Leslie Controls Inc), A42255 (Leslie Controls, Inc. Dba Leslie Controls Inc).

What NSN replaces 4820-01-262-1327?

There are 5 known substitutes for 4820-01-262-1327: 5950-00-369-9498, 3455-00-982-5114, 5950-00-990-8708 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of A42255?

Key specifications for A42255: Style Designator: POPPET; Shank Diameter: 0.426 INCHES NOMINAL IN; Material: STEEL CORROSION RESISTING; Overall Height: 3.977 INCHES NOMINAL IN. 7 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com