PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MILI24092Insulating Varnish,electrical

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5970-00-979-9257 · FSC 5970 · No Item Name Available
Verified by PartsTable
NSN 5970-00-979-9257 — this item is cataloged by the U.S. Government under National Stock Number 5970-00-979-9257. Primary manufacturer part number: MILI24092.
Features
  • Insulating Varnish,electrical — FSC 5970
  • Nondefinitive Spec/std Data: M TYPE AND 220 CLASS
  • Drying Method: BAKED
  • Environmental Protection: MOISTURE RESISTANT AND LUBRICATING OIL AND GREASE AND ACID RESISTANT AND SALT WATER RESISTANT
  • Dry Dielectric Material Voltage Rating in Volts Per Mil Thickness: 1350.0
  • Unit Package Quantity: 1
  • Unit Package Type: CAN
  • 2 verified cross-references
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Insulating Varnish,electrical, cataloged under National Stock Number 5970-00-979-9257, 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 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 6 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. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5970-00-979-9257
Primary Part NumberMILI24092
Item NameInsulating Varnish,electrical
FSC / FSG5970 / 59 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusCANCELLED
Nondefinitive Spec/std DataM TYPE AND 220 CLASS
Drying MethodBAKED
Environmental ProtectionMOISTURE RESISTANT AND LUBRICATING OIL AND GREASE AND ACID RESISTANT AND SALT WATER RESISTANT
Dry Dielectric Material Voltage Rating in Volts Per Mil Thickness1350.0
Unit Package Quantity1
Unit Package TypeCAN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 7
5970-00-166-1682 INTERCHANGEABLE
Insulating Varnish,electrical
5970-00-548-7070DC-997 INTERCHANGEABLE
Insulating Varnish,electrical
Dow Silicones Corporation
5970-00-548-7211 INTERCHANGEABLE
Insulating Varnish,electrical
5970-00-931-2413 INTERCHANGEABLE
Insulating Varnish,electrical
5970-01-012-1057HI-THERM BC-340 INTERCHANGEABLE
Insulating Varnish,electrical
John C. Dolph Company
5970-01-282-5215 INTERCHANGEABLE
Insulating Varnish,electrical
5970-01-439-5298 INTERCHANGEABLE
Insulating Varnish,electrical
Cross-Reference Index
Part NumberManufacturer
MILI24092 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
005-0333-00 Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA)
Related Parts
5970-00-166-1682INTERCHANGEABLE
INSULATING VARNISH,ELECTRICAL
5970-00-548-7070INTERCHANGEABLE
INSULATING VARNISH,ELECTRICAL
DC-997
5970-00-548-7211INTERCHANGEABLE
INSULATING VARNISH,ELECTRICAL
5970-00-931-2413INTERCHANGEABLE
INSULATING VARNISH,ELECTRICAL
5970-01-012-1057INTERCHANGEABLE
INSULATING VARNISH,ELECTRICAL
HI-THERM BC-340
5970-01-282-5215INTERCHANGEABLE
INSULATING VARNISH,ELECTRICAL
5970-01-439-5298INTERCHANGEABLE
INSULATING VARNISH,ELECTRICAL

Frequently Asked Questions

What is NSN 5970-00-979-9257?

NSN 5970-00-979-9257 is a Insulating Varnish,electrical, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 5970 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5970-00-979-9257?

NSN 5970-00-979-9257 has 2 cross-referenced part numbers: MILI24092 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 005-0333-00 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems).

What NSN replaces 5970-00-979-9257?

There are 7 known substitutes for 5970-00-979-9257: 5970-00-166-1682, 5970-00-548-7070, 5970-00-548-7211 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MILI24092?

Key specifications for MILI24092: Nondefinitive Spec/std Data: M TYPE AND 220 CLASS; Drying Method: BAKED; Environmental Protection: MOISTURE RESISTANT AND LUBRICATING OIL AND GREASE AND ACID RESISTANT AND SALT WATER RESISTANT; Special Features: 1 GAL. 7 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5970-00-979-9257 still in active supply?

NSN 5970-00-979-9257 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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