PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

TH3221Switch,box

General Electric Co Electrical Distribution and Control · NSN 5930-00-273-0778 · FSC 5930 · No Item Name Available
Verified by PartsTable
NSN 5930-00-273-0778 — this item is cataloged by the U.S. Government under National Stock Number 5930-00-273-0778. Primary manufacturer part number: TH3221.
Features
  • Switch,box — FSC 5930
  • Contact Load Current Rating at Maximum Rated Voltage: 30.000 AMPERES RESISTIVE DC AND 30.000 AMPERES RESISTIVE AC
  • Maximum Voltage Rating in Volts: 230.0 AC AND 250.0 DC
  • Terminal Type and Quantity: 4 TAB, SOLDER LUG
  • Nonpile-Up Contact Arrangement: 2 POLE, SINGLE THROW, BOTH POSITIONS MAINTAINED SINGLE SWITCH UNIT
  • 3 verified cross-references
  • Primary manufacturer: General Electric Co Electrical Distribution and Control
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Switch,box, cataloged under National Stock Number 5930-00-273-0778, is classified within Federal Supply Class 5930 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is General Electric Co Electrical Distribution and Control. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, 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
NSN5930-00-273-0778
Primary Part NumberTH3221
Item NameSwitch,box
FSC / FSG5930 / 59 — No Item Name Available
ManufacturerGeneral Electric Co Electrical Distribution and Control
StatusACTIVE
Contact Load Current Rating at Maximum Rated Voltage30.000 AMPERES RESISTIVE DC AND 30.000 AMPERES RESISTIVE AC
Maximum Voltage Rating in Volts230.0 AC AND 250.0 DC
Terminal Type and Quantity4 TAB, SOLDER LUG
Nonpile-Up Contact Arrangement2 POLE, SINGLE THROW, BOTH POSITIONS MAINTAINED SINGLE SWITCH UNIT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
3455-00-230-7026305-24 INTERCHANGEABLE
Cutter,milling,side
Kennametal Inc. Div Kennametal Industrial Products Group
5330-00-291-6371162G12 INTERCHANGEABLE
Seal,plain Encased
Skf Usa Inc. Dba Skf Aerospace Sealing Solutions
5999-00-417-041340-221 INTERCHANGEABLE
Contact,electrical
Eaton Corp Opns & Technical Center
5305-00-840-6211 INTERCHANGEABLE
Screw,machine
5962-01-225-674940221 INTERCHANGEABLE
Microcircuit,digital
Raytheon Company Div Rmd Strategic
5310-01-306-505540221 INTERCHANGEABLE
Washer,spring Tension
Bell Intl Inc
6530-01-472-3863402-21 INTERCHANGEABLE
Coupler,litter,sea-
Lifesaving Systems Llc
2910-01-539-719740221 INTERCHANGEABLE
Pump,fuel,metering and Distribut
Hdt Expeditionary Systems Inc
6680-01-550-810540221/61-999-000 INTERCHANGEABLE
Indicator,sight,liquid
Curtiss-Wright Flow Control Corporation Dba Curtiss-Wright Flow Control Co Div Curtiss-Wright / Nu-Torque
Cross-Reference Index
Part NumberManufacturer
TH3221 PRIMARY General Electric Co Electrical Distribution and Control (USA)
40221 General Electric Co Electrical Distribution and Control (USA)
143G186-10 Dresser/marion Div (USA)
Related Parts
3455-00-230-7026INTERCHANGEABLE
CUTTER,MILLING,SIDE
305-24
5330-00-291-6371INTERCHANGEABLE
SEAL,PLAIN ENCASED
162G12
5999-00-417-0413INTERCHANGEABLE
CONTACT,ELECTRICAL
40-221
5305-00-840-6211INTERCHANGEABLE
SCREW,MACHINE
5962-01-225-6749INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
40221
5310-01-306-5055INTERCHANGEABLE
WASHER,SPRING TENSION
40221
6530-01-472-3863INTERCHANGEABLE
COUPLER,LITTER,SEA-
402-21
2910-01-539-7197INTERCHANGEABLE
PUMP,FUEL,METERING AND DISTRIBUT
40221
6680-01-550-8105INTERCHANGEABLE
INDICATOR,SIGHT,LIQUID
40221/61-999-000

Frequently Asked Questions

What is NSN 5930-00-273-0778?

NSN 5930-00-273-0778 is a Switch,box, manufactured by General Electric Co Electrical Distribution and Control, classified under FSC 5930 (No Item Name Available). Status: active.

What are the part numbers for NSN 5930-00-273-0778?

NSN 5930-00-273-0778 has 3 cross-referenced part numbers: TH3221 (General Electric Co Electrical Distribution and Control), 40221 (General Electric Co Electrical Distribution and Control), 143G186-10 (Dresser/marion Div).

What NSN replaces 5930-00-273-0778?

There are 9 known substitutes for 5930-00-273-0778: 3455-00-230-7026, 5330-00-291-6371, 5999-00-417-0413 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of TH3221?

Key specifications for TH3221: Contact Load Current Rating at Maximum Rated Voltage: 30.000 AMPERES RESISTIVE DC AND 30.000 AMPERES RESISTIVE AC; Maximum Voltage Rating in Volts: 230.0 AC AND 250.0 DC; Terminal Type and Quantity: 4 TAB, SOLDER LUG; Nonpile-Up Contact Arrangement: 2 POLE, SINGLE THROW, BOTH POSITIONS MAINTAINED SINGLE SWITCH UNIT. 4 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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