PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3337Piston,valve

Hydronic Corp · NSN 4820-01-124-0330 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-124-0330 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-124-0330. Primary manufacturer part number: 3337.
Features
  • Piston,valve — FSC 4820
  • Material: STEEL
  • Surface Treatment: CHROMIUM
  • 1 verified cross-reference
  • Primary manufacturer: Hydronic Corp
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Steel construction
General Description

The Piston,valve, cataloged under National Stock Number 4820-01-124-0330, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Hydronic Corp. Government technical data includes 2 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-124-0330
Primary Part Number3337
Item NamePiston,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerHydronic Corp
StatusACTIVE
MaterialSTEEL
Surface TreatmentCHROMIUM
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5340-00-054-15421A3337 INTERCHANGEABLE
Plug,expansion
Fwd Seagrave Holdings Lp
6670-00-129-9877 INTERCHANGEABLE
Scale,weighing
2805-00-353-7950G337 INTERCHANGEABLE
Guide,valve Stem
Eaton Corp Dba Eaton Aerospace Jackson
5342-00-496-96703512-16 INTERCHANGEABLE
Hinge,end
Pdi Ground Support Systems, Inc.
5315-00-564-05593337 INTERCHANGEABLE
Pin,drive,power Actuated
Illinois Tool Works Inc
5935-01-019-5156MS3456W22-23S INTERCHANGEABLE
Connector,plug,electrical
Sae International Dba Sae International
5930-01-064-146233337 INTERCHANGEABLE
Switch,pressure
Mirion Technologies (canberra), Inc.
6145-01-092-56043337 INTERCHANGEABLE
Cable,special Purpose,electrical
Belden, Inc.
5910-01-096-54863337 INTERCHANGEABLE
Capacitor
Crown Audio, Inc. Dba Crown International
5330-01-143-6343 INTERCHANGEABLE
Gasket
Cross-Reference Index
Part NumberManufacturer
3337 Hydronic Corp (USA)
Related Parts
5340-00-054-1542INTERCHANGEABLE
PLUG,EXPANSION
1A3337
6670-00-129-9877INTERCHANGEABLE
SCALE,WEIGHING
2805-00-353-7950INTERCHANGEABLE
GUIDE,VALVE STEM
G337
5342-00-496-9670INTERCHANGEABLE
HINGE,END
3512-16
5315-00-564-0559INTERCHANGEABLE
PIN,DRIVE,POWER ACTUATED
3337
5935-01-019-5156INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
MS3456W22-23S
5930-01-064-1462INTERCHANGEABLE
SWITCH,PRESSURE
33337
6145-01-092-5604INTERCHANGEABLE
CABLE,SPECIAL PURPOSE,ELECTRICAL
3337
5910-01-096-5486INTERCHANGEABLE
CAPACITOR
3337
5330-01-143-6343INTERCHANGEABLE
GASKET
2990-01-157-3756INTERCHANGEABLE
FORK ASSEMBLY,MASTER PISTON
3337
5330-01-188-9274INTERCHANGEABLE
SEAL
03337

Frequently Asked Questions

What is NSN 4820-01-124-0330?

NSN 4820-01-124-0330 is a Piston,valve, manufactured by Hydronic Corp, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-124-0330?

NSN 4820-01-124-0330 has 1 cross-referenced part number: 3337 (Hydronic Corp).

What NSN replaces 4820-01-124-0330?

There are 12 known substitutes for 4820-01-124-0330: 5340-00-054-1542, 6670-00-129-9877, 2805-00-353-7950 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 3337?

Key specifications for 3337: Material: STEEL; Surface Treatment: CHROMIUM. 2 total characteristics are documented in the Federal Logistics Information System.

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