PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2510402Piston,valve

Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier · NSN 4820-01-246-6044 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-246-6044 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-246-6044. Primary manufacturer part number: 2510402.
Features
  • Piston,valve — FSC 4820
  • Material Document and Classification: AISI TYPE 303 ASSN STD SINGLE MATERIAL RESPONSE
  • Valve Type for Which Designed: GLOBE
  • Valve Model Number for Which Designed: PL2074260
  • Outside Diameter: 0.435 INCHES NOMINAL IN
  • Material: STEEL COMP 303
  • Valve Design Control Activity: 10001
  • 1 verified cross-reference
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Steel Comp 303 construction
General Description

The Piston,valve, cataloged under National Stock Number 4820-01-246-6044, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 6 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. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-246-6044
Primary Part Number2510402
Item NamePiston,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerNavair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
StatusACTIVE
Material Document and ClassificationAISI TYPE 303 ASSN STD SINGLE MATERIAL RESPONSE
Valve Type for Which DesignedGLOBE
Valve Model Number for Which DesignedPL2074260
Outside Diameter0.435 INCHES NOMINAL IN
MaterialSTEEL COMP 303
Valve Design Control Activity10001
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5330-00-911-47900490724 INTERCHANGEABLE
Gasket
Perkins Engines Inc
Cross-Reference Index
Part NumberManufacturer
2510402 PRIMARY Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
Related Parts
5330-00-911-4790INTERCHANGEABLE
GASKET
0490724

Frequently Asked Questions

What is NSN 4820-01-246-6044?

NSN 4820-01-246-6044 is a Piston,valve, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-246-6044?

NSN 4820-01-246-6044 has 1 cross-referenced part number: 2510402 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).

What NSN replaces 4820-01-246-6044?

There is 1 known substitute for 4820-01-246-6044: 5330-00-911-4790. Verify interchangeability with system specifications before substitution.

What are the specifications of 2510402?

Key specifications for 2510402: Material Document and Classification: AISI TYPE 303 ASSN STD SINGLE MATERIAL RESPONSE; Valve Type for Which Designed: GLOBE; Overall Length: 2.527 INCHES NOMINAL IN; Valve Model Number for Which Designed: PL2074260. 7 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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