PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

421 3-4INTape,insulation,electrical

Nitto, Inc. · NSN 5970-00-139-5157 · FSC 5970 · No Item Name Available
Verified by PartsTable
NSN 5970-00-139-5157 — this item is cataloged by the U.S. Government under National Stock Number 5970-00-139-5157. Primary manufacturer part number: 421 3-4IN.
Features
  • Tape,insulation,electrical — FSC 5970
  • Nominal Length: 1296.0 INCHES IN
  • Nominal Overall Thickness: 0.0035 INCHES IN
  • Adhesive Location: ONE SIDE
  • Temp Rating: 500.0 FAHRENHEIT NOMINAL DEGF
  • Adhesive Type: PRESSURE SENSITIVE
  • Cut Type and Quantity: 1 SINGLE
  • Environmental Protection: MOISTURE RESISTANT
Applications
  • Applications requiring Plastic Polytetrafluoroethylene Overall construction
General Description

The Tape,insulation,electrical, cataloged under National Stock Number 5970-00-139-5157, 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 Nitto, Inc.. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 8 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5970-00-139-5157
Primary Part Number421 3-4IN
Item NameTape,insulation,electrical
FSC / FSG5970 / 59 — No Item Name Available
ManufacturerNitto, Inc.
StatusCANCELLED
Nominal Length1296.0 INCHES IN
Nominal Overall Thickness0.0035 INCHES IN
Adhesive LocationONE SIDE
Temp Rating500.0 FAHRENHEIT NOMINAL DEGF
Adhesive TypePRESSURE SENSITIVE
Cut Type and Quantity1 SINGLE
Environmental ProtectionMOISTURE RESISTANT
Nominal Width0.750 INCHES IN
Departure From Cited DesignatorAS MOD BY NOM W
Dielectric Withstanding Voltage in Volts7200.0
Material Document and ClassificationMIL-I-23594,TYPE 1,CLASS 2 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
Nondefinitive Spec/std Data2 CLASS AND 1 TYPE
MaterialPLASTIC POLYTETRAFLUOROETHYLENE OVERALL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 2
5330-00-821-1235 INTERCHANGEABLE
Seal,plain Encased
4820-00-883-1797 INTERCHANGEABLE
Valve,regulating,fluid Pressure
Cross-Reference Index
Part NumberManufacturer
421 3-4IN Nitto, Inc. (USA)
60 3-4IN 3m Co Admininistrative Electronic & Communications (USA)
TYPE I, CLASS 2 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
GT835T6 Northrop Grumman Systems Corporation (USA)
MIL-I-23594 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
60 3-4IN 3m Company Dba 3m (USA)
107 Davignon Co (USA)
A-A-59474 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
60 3-4IN Minnesota Mining and Mfg Co 3m Company (USA)
Related Parts
5330-00-821-1235INTERCHANGEABLE
SEAL,PLAIN ENCASED
4820-00-883-1797INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE

Frequently Asked Questions

What is NSN 5970-00-139-5157?

NSN 5970-00-139-5157 is a Tape,insulation,electrical, manufactured by Nitto, Inc., classified under FSC 5970 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5970-00-139-5157?

NSN 5970-00-139-5157 has 9 cross-referenced part numbers: 421 3-4IN (Nitto, Inc.), 60 3-4IN (3m Co Admininistrative Electronic & Communications), TYPE I, CLASS 2 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), GT835T6 (Northrop Grumman Systems Corporation), MIL-I-23594 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M) and 4 more.

What NSN replaces 5970-00-139-5157?

There are 2 known substitutes for 5970-00-139-5157: 5330-00-821-1235, 4820-00-883-1797. Verify interchangeability with system specifications before substitution.

What are the specifications of 421 3-4IN?

Key specifications for 421 3-4IN: Nominal Length: 1296.0 INCHES IN; Nominal Overall Thickness: 0.0035 INCHES IN; Adhesive Location: ONE SIDE; Temp Rating: 500.0 FAHRENHEIT NOMINAL DEGF. 13 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5970-00-139-5157 still in active supply?

NSN 5970-00-139-5157 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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