PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

N38921Disk,valve

Leslie Controls, Inc. Dba Leslie Controls Inc · NSN 4820-01-123-2721 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-123-2721 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-123-2721. Primary manufacturer part number: N38921.
Features
  • Disk,valve — FSC 4820
  • 4 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 Disk,valve, cataloged under National Stock Number 4820-01-123-2721, 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 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameDisk,valve
FSC / FSG4820 — No Item Name Available (FSG 48)
ManufacturersLeslie Controls, Inc. Dba Leslie Controls Inc (CAGE 35795); Jednolity Indeks Materialowy - Uniform Material Index (CAGE 9009H)
Technical Specifications
ParameterValue
NSN4820-01-123-2721
Primary Part NumberN38921
Item NameDisk,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerLeslie Controls, Inc. Dba Leslie Controls Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
9540-00-402-0390 INTERCHANGEABLE
Structural Section,special Shape
1377-01-289-85703892-1 INTERCHANGEABLE
Cartridge,impulse
Quantic Industries, Inc. Dba Quantic-Holex
3040-01-604-664638921 INTERCHANGEABLE
Actuator,mechanical,nonaircraft
Exlar Corporation
Cross-Reference Index
Part NumberManufacturer
38921 Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
4820PL0944259 Jednolity Indeks Materialowy - Uniform Material Index (POL)
N38921 PRIMARY Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
21829N PIECE 4 Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
Related Parts
9540-00-402-0390INTERCHANGEABLE
STRUCTURAL SECTION,SPECIAL SHAPE
1377-01-289-8570INTERCHANGEABLE
CARTRIDGE,IMPULSE
3892-1
3040-01-604-6646INTERCHANGEABLE
ACTUATOR,MECHANICAL,NONAIRCRAFT
38921

Frequently Asked Questions

What is NSN 4820-01-123-2721?

NSN 4820-01-123-2721 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 4820-01-123-2721?

NSN 4820-01-123-2721 has 4 cross-referenced part numbers: 38921 (Leslie Controls, Inc. Dba Leslie Controls Inc), 4820PL0944259 (Jednolity Indeks Materialowy - Uniform Material Index), N38921 (Leslie Controls, Inc. Dba Leslie Controls Inc), 21829N PIECE 4 (Leslie Controls, Inc. Dba Leslie Controls Inc).

What NSN replaces 4820-01-123-2721?

There are 3 known substitutes for 4820-01-123-2721: 9540-00-402-0390, 1377-01-289-8570, 3040-01-604-6646. Verify interchangeability with system specifications before substitution.

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