PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

CLASS 52-4Insulator,suspension

American National Standards Institute Incorporated Dba American National Standards Institute · NSN 5970-00-768-7516 · FSC 5970 · No Item Name Available
Verified by PartsTable
NSN 5970-00-768-7516 — this item is cataloged by the U.S. Government under National Stock Number 5970-00-768-7516. Primary manufacturer part number: CLASS 52-4.
Features
  • Insulator,suspension — FSC 5970
  • Mounting Facility Type and Quantity: 2 UNTHREADED HOLE(S)
  • Mounting Hole Diameter: 0.688 INCHES NOMINAL IN
  • Identification Code Color: GRAY/GREY
  • Material: IRON MALLEABLE CAP
  • Distance Between Legs: 0.688 INCHES NOMINAL IN
  • Material: PORCELAIN BASE
  • Style Designator: CLEVIS
Applications
  • Applications requiring Iron Malleable Cap construction
General Description

The Insulator,suspension, cataloged under National Stock Number 5970-00-768-7516, 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 American National Standards Institute Incorporated Dba American National Standards Institute. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 10 commercial cross-references from 8 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
NSN5970-00-768-7516
Primary Part NumberCLASS 52-4
Item NameInsulator,suspension
FSC / FSG5970 / 59 — No Item Name Available
ManufacturerAmerican National Standards Institute Incorporated Dba American National Standards Institute
StatusCANCELLED
Mounting Facility Type and Quantity2 UNTHREADED HOLE(S)
Mounting Hole Diameter0.688 INCHES NOMINAL IN
Identification Code ColorGRAY/GREY
MaterialIRON MALLEABLE CAP
Distance Between Legs0.688 INCHES NOMINAL IN
MaterialPORCELAIN BASE
Style DesignatorCLEVIS
MaterialSTEEL CORROSION RESISTING MOUNTING FACILITY
First Mounting Hole Spacing6.469 INCHES NOMINAL IN
Pin Diameter0.562 INCHES NOMINAL IN
Outside Diameter10.000 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5340-00-114-552081012 INTERCHANGEABLE
Wheel,solid,nonmetallic
Aerol Llc
5970-00-227-9050CLASS 52-1 INTERCHANGEABLE
Insulator,suspension
American National Standards Institute Incorporated Dba American National Standards Institute
5330-00-301-967281012 INTERCHANGEABLE
Packing,preformed
Westinghouse Air Brake Technologies Corp Dba Westinghouse Air Brake Technologies Corp
6930-00-373-958881012 INTERCHANGEABLE
Servo Assembly,wing
Cae Usa Inc.
3110-00-554-3450 INTERCHANGEABLE
Bearing,ball,annular
5940-00-615-6073MS25036-152 INTERCHANGEABLE
Terminal,lug
Sae International Dba Sae International
2520-00-735-05503-2-439 INTERCHANGEABLE
Yoke,universal Joint,vehicular
Dana Corp Spicer Transmission Div
4820-00-821-802108101-2 INTERCHANGEABLE
Cock,poppet Drain
Parker Hannifin Corporation Div Aerospace Group Headquarters
5330-00-927-006532439 INTERCHANGEABLE
Seal,plain Encased
Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp.
5950-00-945-8820204702 INTERCHANGEABLE
Transformer,power
Tdk-Lambda Americas Inc. Div High Power Division
Cross-Reference Index
Part NumberManufacturer
L1070 Joslyn Corp (USA)
800 L3harris Maritime Power & Energy Solutions, Inc. Dba Spd Electrical Systems, Inc. (USA)
C29-2CLASS52-4 American National Standards Institute Incorporated Dba American National Standards Institute (USA)
CLASS 52-4 PRIMARY American National Standards Institute Incorporated Dba American National Standards Institute (USA)
NS2A2 Mcgraw-Edison Power System Div (USA)
32439 Ohio Brass Co (USA)
ANSI C29.2 American National Standards Institute Incorporated Dba American National Standards Institute (USA)
81012 Knox Porcelain Corp (USA)
20S580 Ngk-Locke, Inc. (USA)
8100 Lapp Insulators Llc (USA)
Related Parts
5340-00-114-5520INTERCHANGEABLE
WHEEL,SOLID,NONMETALLIC
81012
5970-00-227-9050INTERCHANGEABLE
INSULATOR,SUSPENSION
CLASS 52-1
5330-00-301-9672INTERCHANGEABLE
PACKING,PREFORMED
81012
6930-00-373-9588INTERCHANGEABLE
SERVO ASSEMBLY,WING
81012
3110-00-554-3450INTERCHANGEABLE
BEARING,BALL,ANNULAR
5940-00-615-6073INTERCHANGEABLE
TERMINAL,LUG
MS25036-152
2520-00-735-0550INTERCHANGEABLE
YOKE,UNIVERSAL JOINT,VEHICULAR
3-2-439
4820-00-821-8021INTERCHANGEABLE
COCK,POPPET DRAIN
08101-2
5330-00-927-0065INTERCHANGEABLE
SEAL,PLAIN ENCASED
32439
5950-00-945-8820INTERCHANGEABLE
TRANSFORMER,POWER
204702
4210-01-356-7073INTERCHANGEABLE
ACTUATOR,VALVE,RATE OF RISE
32439
5999-01-432-0888INTERCHANGEABLE
PLATE,ELECTRICAL SHIELD

Frequently Asked Questions

What is NSN 5970-00-768-7516?

NSN 5970-00-768-7516 is a Insulator,suspension, manufactured by American National Standards Institute Incorporated Dba American National Standards Institute, classified under FSC 5970 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5970-00-768-7516?

NSN 5970-00-768-7516 has 10 cross-referenced part numbers: L1070 (Joslyn Corp), 800 (L3harris Maritime Power & Energy Solutions, Inc. Dba Spd Electrical Systems, Inc.), C29-2CLASS52-4 (American National Standards Institute Incorporated Dba American National Standards Institute), CLASS 52-4 (American National Standards Institute Incorporated Dba American National Standards Institute), NS2A2 (Mcgraw-Edison Power System Div) and 5 more.

What NSN replaces 5970-00-768-7516?

There are 12 known substitutes for 5970-00-768-7516: 5340-00-114-5520, 5970-00-227-9050, 5330-00-301-9672 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of CLASS 52-4?

Key specifications for CLASS 52-4: Mounting Facility Type and Quantity: 2 UNTHREADED HOLE(S); Mounting Hole Diameter: 0.688 INCHES NOMINAL IN; Identification Code Color: GRAY/GREY; Material: IRON MALLEABLE CAP. 11 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5970-00-768-7516 still in active supply?

NSN 5970-00-768-7516 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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