PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3349-CValve,check

Hydronic Corp · NSN 4820-01-124-0227 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-124-0227 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-124-0227. Primary manufacturer part number: 3349-C.
Features
  • Valve,check — FSC 4820
  • 2 verified cross-references
  • Primary manufacturer: Hydronic Corp
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,check, cataloged under National Stock Number 4820-01-124-0227, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Hydronic Corp. 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.

Catalog Facts
Item NameValve,check
FSC / FSG4820 — No Item Name Available (FSG 48)
ManufacturersHydronic Corp (CAGE 12017)
Technical Specifications
ParameterValue
NSN4820-01-124-0227
Primary Part Number3349-C
Item NameValve,check
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerHydronic Corp
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
2520-00-025-6607203343 INTERCHANGEABLE
Fork,transmission
Clark Material Handling Company
6625-00-092-07863343 INTERCHANGEABLE
Filter,variable
Krohn-Hite Corp
4730-00-287-1701118807 INTERCHANGEABLE
Tee,tube
Navistar Intl Corp Truck Br Ohio Plant
2920-00-378-0578 INTERCHANGEABLE
Plate
5305-00-514-7698125122 INTERCHANGEABLE
Screw,machine
Telemechanics Inc
6685-00-800-81433343 INTERCHANGEABLE
Indicator,humidity,card
Clariant Corp Div Clariant Corporation
5935-00-835-798033-43 INTERCHANGEABLE
Connector,plug,electrical
Te Connectivity Corporation Dba Microdot Products
4710-01-112-49933343 INTERCHANGEABLE
Tube,upper
Marvel Manufacturing Co Div the Marvel Manufacturing Company
6505-01-206-8800NDC00006-0059-68 INTERCHANGEABLE
Timolol Maleate Tablets
Merck Sharp & Dohme Corp. Dba Merck Div Us Human Health
6850-01-564-6261 INTERCHANGEABLE
Skin Protective Compound,chemica
Cross-Reference Index
Part NumberManufacturer
3349-C Hydronic Corp (USA)
3343 Hydronic Corp (USA)
Related Parts
2520-00-025-6607INTERCHANGEABLE
FORK,TRANSMISSION
203343
6625-00-092-0786INTERCHANGEABLE
FILTER,VARIABLE
3343
4730-00-287-1701INTERCHANGEABLE
TEE,TUBE
118807
2920-00-378-0578INTERCHANGEABLE
PLATE
5305-00-514-7698INTERCHANGEABLE
SCREW,MACHINE
125122
6685-00-800-8143INTERCHANGEABLE
INDICATOR,HUMIDITY,CARD
3343
5935-00-835-7980INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
33-43
4710-01-112-4993INTERCHANGEABLE
TUBE,UPPER
3343
6505-01-206-8800INTERCHANGEABLE
TIMOLOL MALEATE TABLETS
NDC00006-0059-68
6850-01-564-6261INTERCHANGEABLE
SKIN PROTECTIVE COMPOUND,CHEMICA

Frequently Asked Questions

What is NSN 4820-01-124-0227?

NSN 4820-01-124-0227 is a Valve,check, manufactured by Hydronic Corp, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-124-0227?

NSN 4820-01-124-0227 has 2 cross-referenced part numbers: 3349-C (Hydronic Corp), 3343 (Hydronic Corp).

What NSN replaces 4820-01-124-0227?

There are 10 known substitutes for 4820-01-124-0227: 2520-00-025-6607, 6625-00-092-0786, 4730-00-287-1701 and 7 more. Verify interchangeability with system specifications before substitution.

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