PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

L502Insulator,strain

Joslyn Corp · NSN 5970-00-356-0574 · FSC 5970 · No Item Name Available
Verified by PartsTable
NSN 5970-00-356-0574 — this item is cataloged by the U.S. Government under National Stock Number 5970-00-356-0574. Primary manufacturer part number: L502.
Features
  • Insulator,strain — FSC 5970
  • First Slot Width: 1.124 INCHES NOMINAL IN
  • First Slot Depth: 0.562 INCHES NOMINAL IN
  • Style Designator: GUY, MISCELLANEOUS
  • Wire Hole Diameter: 0.625 INCHES NOMINAL IN
  • Identification Code Color: BROWN
  • First Distance From Conductor Hole to Insulator End: 0.875 INCHES NOMINAL IN
  • Outside Diameter: 2.500 INCHES NOMINAL IN
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Insulator,strain, cataloged under National Stock Number 5970-00-356-0574, 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 Joslyn Corp. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5970-00-356-0574
Primary Part NumberL502
Item NameInsulator,strain
FSC / FSG5970 / 59 — No Item Name Available
ManufacturerJoslyn Corp
StatusACTIVE
First Slot Width1.124 INCHES NOMINAL IN
First Slot Depth0.562 INCHES NOMINAL IN
Style DesignatorGUY, MISCELLANEOUS
Wire Hole Diameter0.625 INCHES NOMINAL IN
Identification Code ColorBROWN
First Distance From Conductor Hole to Insulator End0.875 INCHES NOMINAL IN
Outside Diameter2.500 INCHES NOMINAL IN
Conductor Separation Distance1.750 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5975-00-188-1153502B INTERCHANGEABLE
Cover,junction Box
Ni Industries Inc Bowers Mfg Co Div
5970-00-284-4622 INTERCHANGEABLE
Insulator,strain
6210-00-443-9304502B INTERCHANGEABLE
Light,indicator
Korry Electronics Co
5995-00-473-3759 INTERCHANGEABLE
Cable Assembly,power,electrical
4930-00-940-028404L10GB INTERCHANGEABLE
Lubricator,airline
Parker-Hannifin Corporation Dba Pneutronics Div Pneumatic Division
Cross-Reference Index
Part NumberManufacturer
602M0DIFIED Delta-Star Electric Division Thomas Works of Porter H K Co of Delaware (USA)
502B La Chance Ltd (USA)
L502 PRIMARY Joslyn Corp (USA)
Related Parts
5975-00-188-1153INTERCHANGEABLE
COVER,JUNCTION BOX
502B
5970-00-284-4622INTERCHANGEABLE
INSULATOR,STRAIN
6210-00-443-9304INTERCHANGEABLE
LIGHT,INDICATOR
502B
5995-00-473-3759INTERCHANGEABLE
CABLE ASSEMBLY,POWER,ELECTRICAL
4930-00-940-0284INTERCHANGEABLE
LUBRICATOR,AIRLINE
04L10GB

Frequently Asked Questions

What is NSN 5970-00-356-0574?

NSN 5970-00-356-0574 is a Insulator,strain, manufactured by Joslyn Corp, classified under FSC 5970 (No Item Name Available). Status: active.

What are the part numbers for NSN 5970-00-356-0574?

NSN 5970-00-356-0574 has 3 cross-referenced part numbers: 602M0DIFIED (Delta-Star Electric Division Thomas Works of Porter H K Co of Delaware), 502B (La Chance Ltd), L502 (Joslyn Corp).

What NSN replaces 5970-00-356-0574?

There are 5 known substitutes for 5970-00-356-0574: 5975-00-188-1153, 5970-00-284-4622, 6210-00-443-9304 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of L502?

Key specifications for L502: First Slot Width: 1.124 INCHES NOMINAL IN; First Slot Depth: 0.562 INCHES NOMINAL IN; Style Designator: GUY, MISCELLANEOUS; Wire Hole Diameter: 0.625 INCHES NOMINAL IN. 10 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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