PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20-0411-01Piston,valve

Parker-Hannifin Corporation Dba Refrigeration Specialties Div Refrigerating Specialties Division · NSN 4810-01-121-7932 · FSC 4810 · No Item Name Available
Verified by PartsTable
NSN 4810-01-121-7932 — this item is cataloged by the U.S. Government under National Stock Number 4810-01-121-7932. Primary manufacturer part number: 20-0411-01.
Features
  • Piston,valve — FSC 4810
  • Material: STEEL OR IRON CAST
  • 3 verified cross-references
  • Primary manufacturer: Parker-Hannifin Corporation Dba Refrigeration Specialties Div Refrigerating Specialties Division
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Steel or Iron Cast construction
General Description

The Piston,valve, cataloged under National Stock Number 4810-01-121-7932, is classified within Federal Supply Class 4810 (No Item Name Available) of the Valves group. The primary manufacturer of record is Parker-Hannifin Corporation Dba Refrigeration Specialties Div Refrigerating Specialties Division. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4810-01-121-7932
Primary Part Number20-0411-01
Item NamePiston,valve
FSC / FSG4810 / 48 — No Item Name Available
ManufacturerParker-Hannifin Corporation Dba Refrigeration Specialties Div Refrigerating Specialties Division
StatusACTIVE
MaterialSTEEL OR IRON CAST
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
4810-01-046-855120-0410-02 INTERCHANGEABLE
Valve and Stem Assembly
Parker-Hannifin Corporation Dba Refrigeration Specialties Div Refrigerating Specialties Division
4820-01-121-790130-400-06-20 ITEM 31 INTERCHANGEABLE
Parts Kit,valve
Parker-Hannifin Corporation Dba Refrigeration Specialties Div Refrigerating Specialties Division
4810-01-192-7189201160 INTERCHANGEABLE
Cap,valve
Parker-Hannifin Corporation Dba Refrigeration Specialties Div Refrigerating Specialties Division
4810-01-236-4474202025 INTERCHANGEABLE
Parts Kit,solenoid Valve
Parker-Hannifin Corporation Dba Refrigeration Specialties Div Refrigerating Specialties Division
Cross-Reference Index
Part NumberManufacturer
20-0411-01 PRIMARY Parker-Hannifin Corporation Dba Refrigeration Specialties Div Refrigerating Specialties Division (USA)
30-400-06-20 PART 20-0411-01 Parker-Hannifin Corporation Dba Refrigeration Specialties Div Refrigerating Specialties Division (USA)
30-400-06/20 Parker-Hannifin Corporation Dba Refrigeration Specialties Div Refrigerating Specialties Division (USA)
Related Parts
4810-01-046-8551INTERCHANGEABLE
VALVE AND STEM ASSEMBLY
20-0410-02
4820-01-121-7901INTERCHANGEABLE
PARTS KIT,VALVE
30-400-06-20 ITEM 31
4810-01-192-7189INTERCHANGEABLE
CAP,VALVE
201160
4810-01-236-4474INTERCHANGEABLE
PARTS KIT,SOLENOID VALVE
202025

Frequently Asked Questions

What is NSN 4810-01-121-7932?

NSN 4810-01-121-7932 is a Piston,valve, manufactured by Parker-Hannifin Corporation Dba Refrigeration Specialties Div Refrigerating Specialties Division, classified under FSC 4810 (No Item Name Available). Status: active.

What are the part numbers for NSN 4810-01-121-7932?

NSN 4810-01-121-7932 has 3 cross-referenced part numbers: 20-0411-01 (Parker-Hannifin Corporation Dba Refrigeration Specialties Div Refrigerating Specialties Division), 30-400-06-20 PART 20-0411-01 (Parker-Hannifin Corporation Dba Refrigeration Specialties Div Refrigerating Specialties Division), 30-400-06/20 (Parker-Hannifin Corporation Dba Refrigeration Specialties Div Refrigerating Specialties Division).

What NSN replaces 4810-01-121-7932?

There are 4 known substitutes for 4810-01-121-7932: 4810-01-046-8551, 4820-01-121-7901, 4810-01-192-7189 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 20-0411-01?

Key specifications for 20-0411-01: Material: STEEL OR IRON CAST. 1 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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