PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

19123Piston,valve

Leslie Controls, Inc. Dba Leslie Controls Inc · NSN 4820-01-346-9857 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-346-9857 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-346-9857. Primary manufacturer part number: 19123.
Features
  • Piston,valve — FSC 4820
  • Valve Design Control Activity: 35795
  • Material: STEEL
  • 1 verified cross-reference
  • 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 Piston,valve, cataloged under National Stock Number 4820-01-346-9857, 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 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference 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.

Technical Specifications
ParameterValue
NSN4820-01-346-9857
Primary Part Number19123
Item NamePiston,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerLeslie Controls, Inc. Dba Leslie Controls Inc
StatusACTIVE
Valve Design Control Activity35795
MaterialSTEEL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
5315-00-276-4422 INTERCHANGEABLE
Key,machine
3020-00-391-809421337 INTERCHANGEABLE
Gear,spur
Maradyne Corporation
5855-00-446-590913206E7683 INTERCHANGEABLE
Spring Helical Comp
Chief of Engineers Dept of Army
5950-00-647-506319123B1 INTERCHANGEABLE
Transformer,power
Freed Transformer Co
5905-01-095-4312 INTERCHANGEABLE
Resistor,voltage Sensitive
3040-01-306-926919123 INTERCHANGEABLE
Shaft,straight
Lake Shore Systems, Inc.
5995-01-379-290019123 INTERCHANGEABLE
Cable Assembly,special Purpose,e
Electro Scientific Industries Inc
5120-01-430-7742 INTERCHANGEABLE
Wrench Set,socket
1005-01-714-224819123 INTERCHANGEABLE
Parts Kit,gun
Barrett Firearms Manufacturing, Inc. Dba Barrett Firearms Manufacturing Inc
Cross-Reference Index
Part NumberManufacturer
19123 PRIMARY Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
Related Parts
5315-00-276-4422INTERCHANGEABLE
KEY,MACHINE
3020-00-391-8094INTERCHANGEABLE
GEAR,SPUR
21337
5855-00-446-5909INTERCHANGEABLE
SPRING HELICAL COMP
13206E7683
5950-00-647-5063INTERCHANGEABLE
TRANSFORMER,POWER
19123B1
5905-01-095-4312INTERCHANGEABLE
RESISTOR,VOLTAGE SENSITIVE
3040-01-306-9269INTERCHANGEABLE
SHAFT,STRAIGHT
19123
5995-01-379-2900INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
19123
5120-01-430-7742INTERCHANGEABLE
WRENCH SET,SOCKET
1005-01-714-2248INTERCHANGEABLE
PARTS KIT,GUN
19123

Frequently Asked Questions

What is NSN 4820-01-346-9857?

NSN 4820-01-346-9857 is a Piston,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 4820-01-346-9857?

NSN 4820-01-346-9857 has 1 cross-referenced part number: 19123 (Leslie Controls, Inc. Dba Leslie Controls Inc).

What NSN replaces 4820-01-346-9857?

There are 9 known substitutes for 4820-01-346-9857: 5315-00-276-4422, 3020-00-391-8094, 5855-00-446-5909 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 19123?

Key specifications for 19123: Valve Design Control Activity: 35795; Material: STEEL. 2 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