PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

33220Thermostat,flow Control

Vulcan-Hart Corp · NSN 6685-00-875-9422 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-00-875-9422 — this item is cataloged by the U.S. Government under National Stock Number 6685-00-875-9422. Primary manufacturer part number: 33220.
Features
  • Thermostat,flow Control — FSC 6685
  • Flow Control Device: ANY ACCEPTABLE
  • Spring Operated Pressure Relief: NOT PROVIDED
  • Thermostat Type: ANY ACCEPTABLE
  • Usage Design: ALL KETTLES
  • Operating Temp Rating: 190.0 FAHRENHEIT MINIMUM AND 240.0 FAHRENHEIT MAXIMUM DEGF
  • Opening Temp Rating: 190.0 FAHRENHEIT NOMINAL DEGF
  • 3 verified cross-references
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Thermostat,flow Control, cataloged under National Stock Number 6685-00-875-9422, is classified within Federal Supply Class 6685 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Vulcan-Hart Corp. Government technical data includes 6 verified specifications, 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. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6685-00-875-9422
Primary Part Number33220
Item NameThermostat,flow Control
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerVulcan-Hart Corp
StatusACTIVE
Flow Control DeviceANY ACCEPTABLE
Spring Operated Pressure ReliefNOT PROVIDED
Thermostat TypeANY ACCEPTABLE
Usage DesignALL KETTLES
Operating Temp Rating190.0 FAHRENHEIT MINIMUM AND 240.0 FAHRENHEIT MAXIMUM DEGF
Opening Temp Rating190.0 FAHRENHEIT NOMINAL DEGF
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
3455-00-007-9628 INTERCHANGEABLE
File,rotary
5940-00-113-982033220 INTERCHANGEABLE
Terminal,lug
Te Connectivity Corporation
3030-00-269-9714614 INTERCHANGEABLE
Belt,v
Gates Corporation
5305-00-520-5568722-031-205 INTERCHANGEABLE
Screw,machine
Parker-Hannifin Corporation Dba Service and Support Operation Div Services and Support Operations
6680-00-794-4776JMS-8191 INTERCHANGEABLE
Glass,liquid Sight Indicator,fla
Clark-Reliance Llc
8120-01-051-222933220 INTERCHANGEABLE
Cylinder,compressed Gas
Tyco Fire Products Lp
5330-01-191-234333220 INTERCHANGEABLE
Gasket
Elkhart Brass Manufacturing Company, Llc Div Elkhart Brass Manufacturing Company
5310-01-611-001633220 INTERCHANGEABLE
Washer,flat
Fastenal Company Dba Fastenal Co
5920-01-628-776833220 INTERCHANGEABLE
Absorber,overvoltage
U.s. Ordnance
Cross-Reference Index
Part NumberManufacturer
3220 Vulcan-Hart Corp (USA)
33220 PRIMARY Vulcan-Hart Corp (USA)
3133W Vulcan-Hart Corp (USA)
Related Parts
3455-00-007-9628INTERCHANGEABLE
FILE,ROTARY
5940-00-113-9820INTERCHANGEABLE
TERMINAL,LUG
33220
3030-00-269-9714INTERCHANGEABLE
BELT,V
614
5305-00-520-5568INTERCHANGEABLE
SCREW,MACHINE
722-031-205
6680-00-794-4776INTERCHANGEABLE
GLASS,LIQUID SIGHT INDICATOR,FLA
JMS-8191
8120-01-051-2229INTERCHANGEABLE
CYLINDER,COMPRESSED GAS
33220
5330-01-191-2343INTERCHANGEABLE
GASKET
33220
5310-01-611-0016INTERCHANGEABLE
WASHER,FLAT
33220
5920-01-628-7768INTERCHANGEABLE
ABSORBER,OVERVOLTAGE
33220

Frequently Asked Questions

What is NSN 6685-00-875-9422?

NSN 6685-00-875-9422 is a Thermostat,flow Control, manufactured by Vulcan-Hart Corp, classified under FSC 6685 (No Item Name Available). Status: active.

What are the part numbers for NSN 6685-00-875-9422?

NSN 6685-00-875-9422 has 3 cross-referenced part numbers: 3220 (Vulcan-Hart Corp), 33220 (Vulcan-Hart Corp), 3133W (Vulcan-Hart Corp).

What NSN replaces 6685-00-875-9422?

There are 9 known substitutes for 6685-00-875-9422: 3455-00-007-9628, 5940-00-113-9820, 3030-00-269-9714 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 33220?

Key specifications for 33220: Flow Control Device: ANY ACCEPTABLE; Spring Operated Pressure Relief: NOT PROVIDED; Thermostat Type: ANY ACCEPTABLE; Usage Design: ALL KETTLES. 7 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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