PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2640092 ITEM 19L1Stem,fluid Valve

Naval Inventory Control Point Mechanicsburg · NSN 4820-01-287-9430 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-287-9430 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-287-9430. Primary manufacturer part number: 2640092 ITEM 19L1.
Features
  • Stem,fluid Valve — FSC 4820
  • Material: COPPER ALLOY
  • Reference Number Differentiating Characteristics: QUALITY CONTROL IAW NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS
  • Valve Size for Which Designed: 2.000 INCHES IN
  • Criticality Code Justification: ZZZY
  • 8 verified cross-references
  • Primary manufacturer: Naval Inventory Control Point Mechanicsburg
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Copper Alloy construction
General Description

The Stem,fluid Valve, cataloged under National Stock Number 4820-01-287-9430, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Naval Inventory Control Point Mechanicsburg. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4820-01-287-9430
Primary Part Number2640092 ITEM 19L1
Item NameStem,fluid Valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerNaval Inventory Control Point Mechanicsburg
StatusCANCELLED
MaterialCOPPER ALLOY
Reference Number Differentiating CharacteristicsQUALITY CONTROL IAW NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS
Valve Size for Which Designed2.000 INCHES IN
Criticality Code JustificationZZZY
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 2
4820-00-220-91082631316 INTERCHANGEABLE
Stem,needle Valve
Parker Hannifin Corporation Div Aerospace Group Headquarters
5133-01-234-2155 INTERCHANGEABLE
Drill,twist
Cross-Reference Index
Part NumberManufacturer
2640092 ITEM 19L1 Naval Inventory Control Point Mechanicsburg (USA)
2630384-ITEM-28 Electric Boat Corporation Div General Dynamics Electric Boat (USA)
2630080ITEM 11L1 Naval Inventory Control Point Mechanicsburg (USA)
2640092-ITEM-19 Electric Boat Corporation Div General Dynamics Electric Boat (USA)
2740033-ITEM-8 Electric Boat Corporation Div General Dynamics Electric Boat (USA)
2631316 Parker Hannifin Corporation Div Aerospace Group Headquarters (USA)
2630080-ITEM-11 Electric Boat Corporation Div General Dynamics Electric Boat (USA)
2631316L1 Naval Inventory Control Point Mechanicsburg (USA)
Related Parts
4820-00-220-9108INTERCHANGEABLE
STEM,NEEDLE VALVE
2631316
5133-01-234-2155INTERCHANGEABLE
DRILL,TWIST

Frequently Asked Questions

What is NSN 4820-01-287-9430?

NSN 4820-01-287-9430 is a Stem,fluid Valve, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 4820 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4820-01-287-9430?

NSN 4820-01-287-9430 has 8 cross-referenced part numbers: 2640092 ITEM 19L1 (Naval Inventory Control Point Mechanicsburg), 2630384-ITEM-28 (Electric Boat Corporation Div General Dynamics Electric Boat), 2630080ITEM 11L1 (Naval Inventory Control Point Mechanicsburg), 2640092-ITEM-19 (Electric Boat Corporation Div General Dynamics Electric Boat), 2740033-ITEM-8 (Electric Boat Corporation Div General Dynamics Electric Boat) and 3 more.

What NSN replaces 4820-01-287-9430?

There are 2 known substitutes for 4820-01-287-9430: 4820-00-220-9108, 5133-01-234-2155. Verify interchangeability with system specifications before substitution.

What are the specifications of 2640092 ITEM 19L1?

Key specifications for 2640092 ITEM 19L1: Material: COPPER ALLOY; Reference Number Differentiating Characteristics: QUALITY CONTROL IAW NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS; Valve Size for Which Designed: 2.000 INCHES IN; Criticality Code Justification: ZZZY. 4 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4820-01-287-9430 still in active supply?

NSN 4820-01-287-9430 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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