PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B450Insulating Varnish,electrical

Westinghouse Electric Corp · NSN 5970-00-056-3557 · FSC 5970 · No Item Name Available
Verified by PartsTable
NSN 5970-00-056-3557 — this item is cataloged by the U.S. Government under National Stock Number 5970-00-056-3557. Primary manufacturer part number: B450.
Features
  • Insulating Varnish,electrical — FSC 5970
  • Dry Dielectric Material Voltage Rating in Volts Per Mil Thickness: 1750.0
  • Drying Method: AIR
  • Unit Package Quantity: 1
  • Unit Package Type: CAN
  • Color: BLACK
  • 2 verified cross-references
  • Primary manufacturer: Westinghouse Electric Corp
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Insulating Varnish,electrical, cataloged under National Stock Number 5970-00-056-3557, is classified within Federal Supply Class 5970 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Westinghouse Electric Corp. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5970-00-056-3557
Primary Part NumberB450
Item NameInsulating Varnish,electrical
FSC / FSG5970 / 59 — No Item Name Available
ManufacturerWestinghouse Electric Corp
StatusCANCELLED
Dry Dielectric Material Voltage Rating in Volts Per Mil Thickness1750.0
Drying MethodAIR
Unit Package Quantity1
Unit Package TypeCAN
ColorBLACK
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 5
5940-00-197-8705B450 INTERCHANGEABLE
Terminal,lug
Abb Installation Products Inc
3455-00-224-904772 INTERCHANGEABLE
Blade,hole Saw
Armstrong-Blum Mfg. Co.
3455-00-293-052208580 INTERCHANGEABLE
Cutter,milling,metal Slitting
Niagara Cutter Inc
5325-00-971-9474B450 INTERCHANGEABLE
Grommet,transmissio
Parker-Hannifin Corporation Div O-Ring Division
6105-01-205-8522C1081 INTERCHANGEABLE
Motor,alternating Current
General Electric Co Motor Business Group
Cross-Reference Index
Part NumberManufacturer
B450 Westinghouse Electric Corp (USA)
B450 Westinghouse Electric Corp Power Generation-Generator Div (USA)
Related Parts
5940-00-197-8705INTERCHANGEABLE
TERMINAL,LUG
B450
3455-00-224-9047INTERCHANGEABLE
BLADE,HOLE SAW
72
3455-00-293-0522INTERCHANGEABLE
CUTTER,MILLING,METAL SLITTING
08580
5325-00-971-9474INTERCHANGEABLE
GROMMET,TRANSMISSIO
B450
6105-01-205-8522INTERCHANGEABLE
MOTOR,ALTERNATING CURRENT
C1081

Frequently Asked Questions

What is NSN 5970-00-056-3557?

NSN 5970-00-056-3557 is a Insulating Varnish,electrical, manufactured by Westinghouse Electric Corp, classified under FSC 5970 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5970-00-056-3557?

NSN 5970-00-056-3557 has 2 cross-referenced part numbers: B450 (Westinghouse Electric Corp), B450 (Westinghouse Electric Corp Power Generation-Generator Div).

What NSN replaces 5970-00-056-3557?

There are 5 known substitutes for 5970-00-056-3557: 5940-00-197-8705, 3455-00-224-9047, 3455-00-293-0522 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of B450?

Key specifications for B450: Dry Dielectric Material Voltage Rating in Volts Per Mil Thickness: 1750.0; Drying Method: AIR; Unit Package Quantity: 1; Unit Package Type: CAN. 5 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5970-00-056-3557 still in active supply?

NSN 5970-00-056-3557 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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