PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

DC-997Insulating Varnish,electrical

Dow Silicones Corporation · NSN 5970-00-548-7070 · FSC 5970 · No Item Name Available
Verified by PartsTable
NSN 5970-00-548-7070 — this item is cataloged by the U.S. Government under National Stock Number 5970-00-548-7070. Primary manufacturer part number: DC-997.
Features
  • Insulating Varnish,electrical — FSC 5970
  • Nondefinitive Spec/std Data: 200 CLASS AND CB GRADE
  • Unit Package Quantity: 5
  • Unit Package Type: CAN
  • Dry Dielectric Material Voltage Rating in Volts Per Mil Thickness: 1700.0
  • Environmental Protection: ACID RESISTANT AND MOISTURE RESISTANT AND OIL RESISTANT AND SALT WATER RESISTANT AND HIGH TEMPERATURE
  • Drying Method: BAKED
  • 7 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 5970-00-548-7070, 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 Dow Silicones Corporation. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5970-00-548-7070
Primary Part NumberDC-997
Item NameInsulating Varnish,electrical
FSC / FSG5970 / 59 — No Item Name Available
ManufacturerDow Silicones Corporation
StatusCANCELLED
Nondefinitive Spec/std Data200 CLASS AND CB GRADE
Unit Package Quantity5
Unit Package TypeCAN
Dry Dielectric Material Voltage Rating in Volts Per Mil Thickness1700.0
Environmental ProtectionACID RESISTANT AND MOISTURE RESISTANT AND OIL RESISTANT AND SALT WATER RESISTANT AND HIGH TEMPERATURE
Drying MethodBAKED
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5120-00-056-3938 INTERCHANGEABLE
Blade,nutdriver
5970-00-166-1682 INTERCHANGEABLE
Insulating Varnish,electrical
4820-00-446-3537997 INTERCHANGEABLE
Valve,safety Relief
Banner Industries Inc Skinner Engine Co Div
5360-00-498-9758104135 INTERCHANGEABLE
Spring,helical,extension
Viking Technologies, Ltd.
5340-00-527-3160 INTERCHANGEABLE
Bracket,angle
5340-00-527-3178 INTERCHANGEABLE
Bracket,angle
5340-00-527-3179900 INTERCHANGEABLE
Bracket,angle
Bommer Industries, Inc.
5340-00-527-3182 INTERCHANGEABLE
Bracket,angle
5120-00-544-5647942AS100 INTERCHANGEABLE
Jack,hydraulic,hand
Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier
5970-00-548-7211 INTERCHANGEABLE
Insulating Varnish,electrical
Cross-Reference Index
Part NumberManufacturer
DC-997 PRIMARY Dow Silicones Corporation (USA)
997 VARNISH Dow Silicones Corporation (USA)
R620 Union Carbide Corp Sub of Dow Co the (USA)
997 Dow Silicones Corporation (USA)
MIL-I-24092 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
DC-997, 5GAL Dow Silicones Corporation (USA)
997 VARNISH, 5 GAL Dow Silicones Corporation (USA)
Related Parts
5120-00-056-3938INTERCHANGEABLE
BLADE,NUTDRIVER
5970-00-166-1682INTERCHANGEABLE
INSULATING VARNISH,ELECTRICAL
4820-00-446-3537INTERCHANGEABLE
VALVE,SAFETY RELIEF
997
5360-00-498-9758INTERCHANGEABLE
SPRING,HELICAL,EXTENSION
104135
5340-00-527-3160INTERCHANGEABLE
BRACKET,ANGLE
5340-00-527-3178INTERCHANGEABLE
BRACKET,ANGLE
5340-00-527-3179INTERCHANGEABLE
BRACKET,ANGLE
900
5340-00-527-3182INTERCHANGEABLE
BRACKET,ANGLE
5120-00-544-5647INTERCHANGEABLE
JACK,HYDRAULIC,HAND
942AS100
5970-00-548-7211INTERCHANGEABLE
INSULATING VARNISH,ELECTRICAL
2805-00-673-0341INTERCHANGEABLE
VALVE,POPPET,ENGINE
D-1140
5975-00-819-1860INTERCHANGEABLE
BUSHING,ELECTRICAL CONDUIT
BBU-400

Frequently Asked Questions

What is NSN 5970-00-548-7070?

NSN 5970-00-548-7070 is a Insulating Varnish,electrical, manufactured by Dow Silicones Corporation, classified under FSC 5970 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5970-00-548-7070?

NSN 5970-00-548-7070 has 7 cross-referenced part numbers: DC-997 (Dow Silicones Corporation), 997 VARNISH (Dow Silicones Corporation), R620 (Union Carbide Corp Sub of Dow Co the), 997 (Dow Silicones Corporation), MIL-I-24092 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M) and 2 more.

What NSN replaces 5970-00-548-7070?

There are 12 known substitutes for 5970-00-548-7070: 5120-00-056-3938, 5970-00-166-1682, 4820-00-446-3537 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of DC-997?

Key specifications for DC-997: Nondefinitive Spec/std Data: 200 CLASS AND CB GRADE; Special Features: 5 GALLON; Unit Package Quantity: 5; Unit Package Type: CAN. 7 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5970-00-548-7070 still in active supply?

NSN 5970-00-548-7070 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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