PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

N09403Piston,valve

Leslie Controls, Inc. Dba Leslie Controls Inc · NSN 4820-00-036-1678 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-036-1678 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-036-1678. Primary manufacturer part number: N09403.
Features
  • Piston,valve — FSC 4820
  • Valve Size for Which Designed: 2.250 INCHES 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
General Description

The Piston,valve, cataloged under National Stock Number 4820-00-036-1678, 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. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-036-1678
Primary Part NumberN09403
Item NamePiston,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerLeslie Controls, Inc. Dba Leslie Controls Inc
StatusACTIVE
Valve Size for Which Designed2.250 INCHES IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
5360-00-254-1483 INTERCHANGEABLE
Spring,helical,compression
4820-00-388-68899403 INTERCHANGEABLE
Stem,fluid Valve
Westinghouse Electric Corp
5915-00-496-20402920137-3 INTERCHANGEABLE
Filter,band Pass
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5130-00-596-97149403 INTERCHANGEABLE
Sander,belt,electric,portable
Makita Corp of America
4910-01-149-4822 INTERCHANGEABLE
Adapter,test,radiat
4820-01-235-36649400 PIECE 6 INTERCHANGEABLE
Piston,valve
Ingersoll-Rand Co Material Handling Div
5330-01-344-25729403 INTERCHANGEABLE
Parts Kit,seal Replacement,mecha
DP Manufacturing Inc.
7520-01-461-266460101 INTERCHANGEABLE
Pen,ball-Point
Sanford Corp
1680-01-486-7439 INTERCHANGEABLE
Panel Assy,control
7050-01-543-2507799-00350 INTERCHANGEABLE
Computer Subassembly
Appian Technology Inc
Cross-Reference Index
Part NumberManufacturer
N09403 PRIMARY Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
9403 Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
Related Parts
5360-00-254-1483INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
4820-00-388-6889INTERCHANGEABLE
STEM,FLUID VALVE
9403
5915-00-496-2040INTERCHANGEABLE
FILTER,BAND PASS
2920137-3
5130-00-596-9714INTERCHANGEABLE
SANDER,BELT,ELECTRIC,PORTABLE
9403
4910-01-149-4822INTERCHANGEABLE
ADAPTER,TEST,RADIAT
4820-01-235-3664INTERCHANGEABLE
PISTON,VALVE
9400 PIECE 6
5330-01-344-2572INTERCHANGEABLE
PARTS KIT,SEAL REPLACEMENT,MECHA
9403
7520-01-461-2664INTERCHANGEABLE
PEN,BALL-POINT
60101
1680-01-486-7439INTERCHANGEABLE
PANEL ASSY,CONTROL
7050-01-543-2507INTERCHANGEABLE
COMPUTER SUBASSEMBLY
799-00350

Frequently Asked Questions

What is NSN 4820-00-036-1678?

NSN 4820-00-036-1678 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 4820-00-036-1678?

NSN 4820-00-036-1678 has 2 cross-referenced part numbers: N09403 (Leslie Controls, Inc. Dba Leslie Controls Inc), 9403 (Leslie Controls, Inc. Dba Leslie Controls Inc).

What NSN replaces 4820-00-036-1678?

There are 10 known substitutes for 4820-00-036-1678: 5360-00-254-1483, 4820-00-388-6889, 5915-00-496-2040 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of N09403?

Key specifications for N09403: Special Features: BRASS; ONE CAST IRON PISTON RING; Overall Length: 1.940 INCHES NOMINAL IN; Valve Size for Which Designed: 2.250 INCHES IN. 3 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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