PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

IL8UInsulator,feedthru

Joint Electronics Type Designation System · NSN 5970-00-524-6759 · FSC 5970 · No Item Name Available
Verified by PartsTable
NSN 5970-00-524-6759 — this item is cataloged by the U.S. Government under National Stock Number 5970-00-524-6759. Primary manufacturer part number: IL8U.
Features
  • Insulator,feedthru — FSC 5970
  • Style Designator: DOUBLE, BOWL
  • Mounting Hole Diameter: 0.140 INCHES NOMINAL IN
  • Flange Thickness: 0.250 INCHES NOMINAL IN
  • Gasket Thickness: 0.130 INCHES NOMINAL IN
  • Outside Diameter: 2.500 INCHES NOMINAL IN
  • Height Above Mounting Surface: 1.620 INCHES NOMINAL IN
  • Center Stud Length: 1.990 INCHES NOMINAL IN
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Insulator,feedthru, cataloged under National Stock Number 5970-00-524-6759, 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 Joint Electronics Type Designation System. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 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
NSN5970-00-524-6759
Primary Part NumberIL8U
Item NameInsulator,feedthru
FSC / FSG5970 / 59 — No Item Name Available
ManufacturerJoint Electronics Type Designation System
StatusCANCELLED
Style DesignatorDOUBLE, BOWL
Mounting Hole Diameter0.140 INCHES NOMINAL IN
Flange Thickness0.250 INCHES NOMINAL IN
Gasket Thickness0.130 INCHES NOMINAL IN
Outside Diameter2.500 INCHES NOMINAL IN
Height Above Mounting Surface1.620 INCHES NOMINAL IN
Center Stud Length1.990 INCHES NOMINAL IN
Mounting Bolt Circle Diameter2.250 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5985-00-212-7420 INTERCHANGEABLE
Sleeve,antenna Support
5136-00-254-4518 INTERCHANGEABLE
Tap,thread Cutting
5985-00-501-1642 INTERCHANGEABLE
Antenna Subassembly
5970-00-501-1761 INTERCHANGEABLE
Insulator,bowl
5985-00-504-7200 INTERCHANGEABLE
Sleeve,antenna Support
5985-00-522-4549 INTERCHANGEABLE
Adapter,theodolite Mounting,ante
5985-00-524-6786 INTERCHANGEABLE
Mast
3030-00-528-4455 INTERCHANGEABLE
Belt,v
5360-00-535-969614403 INTERCHANGEABLE
Spring,helical,compression
Honeywell International, Inc Div Aerospace-Tucson
5220-00-566-40611440-3 INTERCHANGEABLE
Gage,plug,thread
Stanley Engineered Fastening Llc
Cross-Reference Index
Part NumberManufacturer
IL8U Joint Electronics Type Designation System (USA)
MS25054-1B Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
1L8U Joint Electronics Type Designation System (USA)
MIL-DTL-7965 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
14403 Dayton-Granger, Inc. (USA)
Related Parts
5985-00-212-7420INTERCHANGEABLE
SLEEVE,ANTENNA SUPPORT
5136-00-254-4518INTERCHANGEABLE
TAP,THREAD CUTTING
5985-00-501-1642INTERCHANGEABLE
ANTENNA SUBASSEMBLY
5970-00-501-1761INTERCHANGEABLE
INSULATOR,BOWL
5985-00-504-7200INTERCHANGEABLE
SLEEVE,ANTENNA SUPPORT
5985-00-522-4549INTERCHANGEABLE
ADAPTER,THEODOLITE MOUNTING,ANTE
5985-00-524-6786INTERCHANGEABLE
MAST
3030-00-528-4455INTERCHANGEABLE
BELT,V
5360-00-535-9696INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
14403
5220-00-566-4061INTERCHANGEABLE
GAGE,PLUG,THREAD
1440-3
5985-00-631-4726INTERCHANGEABLE
ADAPTER,ANTENNA TO ANTENNA BASE
5950-00-647-6736INTERCHANGEABLE
TRANSFORMER,POWER
14403

Frequently Asked Questions

What is NSN 5970-00-524-6759?

NSN 5970-00-524-6759 is a Insulator,feedthru, manufactured by Joint Electronics Type Designation System, classified under FSC 5970 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5970-00-524-6759?

NSN 5970-00-524-6759 has 5 cross-referenced part numbers: IL8U (Joint Electronics Type Designation System), MS25054-1B (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), 1L8U (Joint Electronics Type Designation System), MIL-DTL-7965 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 14403 (Dayton-Granger, Inc.).

What NSN replaces 5970-00-524-6759?

There are 12 known substitutes for 5970-00-524-6759: 5985-00-212-7420, 5136-00-254-4518, 5985-00-501-1642 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of IL8U?

Key specifications for IL8U: Style Designator: DOUBLE, BOWL; Mounting Hole Diameter: 0.140 INCHES NOMINAL IN; Flange Thickness: 0.250 INCHES NOMINAL IN; Gasket Thickness: 0.130 INCHES NOMINAL IN. 8 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5970-00-524-6759 still in active supply?

NSN 5970-00-524-6759 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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