PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B203-4Piston,valve

Henry Technologies, Inc. · NSN 4820-01-241-9253 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-241-9253 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-241-9253. Primary manufacturer part number: B203-4.
Features
  • Piston,valve — FSC 4820
  • 1 verified cross-reference
  • Primary manufacturer: Henry Technologies, Inc.
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Piston,valve, cataloged under National Stock Number 4820-01-241-9253, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Henry Technologies, Inc.. 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.

Catalog Facts
Item NamePiston,valve
FSC / FSG4820 — No Item Name Available (FSG 48)
ManufacturersHenry Technologies, Inc. (CAGE 28193)
Technical Specifications
ParameterValue
NSN4820-01-241-9253
Primary Part NumberB203-4
Item NamePiston,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerHenry Technologies, Inc.
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
6210-01-498-8001 INTERCHANGEABLE
Filter,indicator Light
Cross-Reference Index
Part NumberManufacturer
B203-4 Henry Technologies, Inc. (USA)
Related Parts
6210-01-498-8001INTERCHANGEABLE
FILTER,INDICATOR LIGHT

Frequently Asked Questions

What is NSN 4820-01-241-9253?

NSN 4820-01-241-9253 is a Piston,valve, manufactured by Henry Technologies, Inc., classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-241-9253?

NSN 4820-01-241-9253 has 1 cross-referenced part number: B203-4 (Henry Technologies, Inc.).

What NSN replaces 4820-01-241-9253?

There is 1 known substitute for 4820-01-241-9253: 6210-01-498-8001. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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