PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

501Insulator,standoff

Johnson Electric Supply Co · NSN 5970-00-284-9591 · FSC 5970 · No Item Name Available
Verified by PartsTable
NSN 5970-00-284-9591 — this item is cataloged by the U.S. Government under National Stock Number 5970-00-284-9591. Primary manufacturer part number: 501.
Features
  • Insulator,standoff — FSC 5970
  • Top Diameter: 0.500 INCHES NOMINAL IN
  • Thread Location: MOUNTING FACILITY AND ELECTRICAL TERMINATION
  • Outside Diameter: 0.750 INCHES NOMINAL IN
  • Thread Length: 0.375 INCHES NOMINAL IN
  • Mounting Facility Type and Quantity: 1 THREADED HOLE(S)
  • Identification Code Color: WHITE
  • Screw Thread Quantity Per Inch and Location: 32 ELECTRICAL TERMINATION AND 32 MOUNTING FACILITY
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Insulator,standoff, cataloged under National Stock Number 5970-00-284-9591, 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 Johnson Electric Supply Co. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 10 commercial cross-references from 9 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5970-00-284-9591
Primary Part Number501
Item NameInsulator,standoff
FSC / FSG5970 / 59 — No Item Name Available
ManufacturerJohnson Electric Supply Co
StatusCANCELLED
Top Diameter0.500 INCHES NOMINAL IN
Thread LocationMOUNTING FACILITY AND ELECTRICAL TERMINATION
Outside Diameter0.750 INCHES NOMINAL IN
Thread Length0.375 INCHES NOMINAL IN
Mounting Facility Type and Quantity1 THREADED HOLE(S)
Identification Code ColorWHITE
Screw Thread Quantity Per Inch and Location32 ELECTRICAL TERMINATION AND 32 MOUNTING FACILITY
Furnished Items and Quantity2 FLAT WASHER AND 1 CORK WASHER AND 2 SCREW
Style DesignatorPILLAR
Thread Class and Location2B ELECTRICAL TERMINATION AND 2B MOUNTING FACILITY
Screw Thread Diameter and Location0.164 ELECTRICAL TERMINATION INCHES NOMINAL AND 0.164 MOUNTING FACILITY INCHES NOMINAL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 6
5325-00-174-90361JA2496P10 INTERCHANGEABLE
Grommet,nonmetallic
Westinghouse Electric Corp
5905-00-226-030327-818 INTERCHANGEABLE
Resistor,adjustable
Raytheon Company Dba Raytheon Co
5950-00-921-4256 INTERCHANGEABLE
Coil,radio Frequency
5940-00-997-005927818 INTERCHANGEABLE
Terminal,lug
Prestolite Electric Inc
4720-01-084-71052781-8 INTERCHANGEABLE
Hose,nonmetallic
Danfoss Power Solutions II, Llc
5310-01-157-987801298 INTERCHANGEABLE
Washer,lock
Stanley Black & Decker, Inc. Dba Stanley Hydraulic Tools Div Stanley Hydraulic Tools
Cross-Reference Index
Part NumberManufacturer
501 PRIMARY Johnson Electric Supply Co (USA)
771856G4 PRIMARY Wenco Mfg Co (USA)
01298 Carborundum Co the Refractories and Electronics Div Latrobe Plant (USA)
27818 PRIMARY W. S. Wilson Corp Div W. S. Wilson Corporation (USA)
9501 PRIMARY Halsit Holdings Llc Div Halsit Holdings, Llc Dba Abbatron (USA)
246-00-002 Logetronics Corporation (USA)
8A007 PRIMARY Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple (USA)
501 Viking Technologies, Ltd. (USA)
135-501 Viking Technologies, Ltd. (USA)
9501 Dialight Corporation (USA)
Related Parts
5325-00-174-9036INTERCHANGEABLE
GROMMET,NONMETALLIC
1JA2496P10
5905-00-226-0303INTERCHANGEABLE
RESISTOR,ADJUSTABLE
27-818
5950-00-921-4256INTERCHANGEABLE
COIL,RADIO FREQUENCY
5940-00-997-0059INTERCHANGEABLE
TERMINAL,LUG
27818
4720-01-084-7105INTERCHANGEABLE
HOSE,NONMETALLIC
2781-8
5310-01-157-9878INTERCHANGEABLE
WASHER,LOCK
01298

Frequently Asked Questions

What is NSN 5970-00-284-9591?

NSN 5970-00-284-9591 is a Insulator,standoff, manufactured by Johnson Electric Supply Co, classified under FSC 5970 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5970-00-284-9591?

NSN 5970-00-284-9591 has 10 cross-referenced part numbers: 501 (Johnson Electric Supply Co), 771856G4 (Wenco Mfg Co), 01298 (Carborundum Co the Refractories and Electronics Div Latrobe Plant), 27818 (W. S. Wilson Corp Div W. S. Wilson Corporation), 9501 (Halsit Holdings Llc Div Halsit Holdings, Llc Dba Abbatron) and 5 more.

What NSN replaces 5970-00-284-9591?

There are 6 known substitutes for 5970-00-284-9591: 5325-00-174-9036, 5905-00-226-0303, 5950-00-921-4256 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 501?

Key specifications for 501: Top Diameter: 0.500 INCHES NOMINAL IN; Thread Location: MOUNTING FACILITY AND ELECTRICAL TERMINATION; Outside Diameter: 0.750 INCHES NOMINAL IN; Thread Length: 0.375 INCHES NOMINAL IN. 12 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5970-00-284-9591 still in active supply?

NSN 5970-00-284-9591 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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