PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

99-257-1Coil,electrical

Automatic Switch Company Dba Asco · NSN 5950-01-039-3184 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-01-039-3184 — this item is cataloged by the U.S. Government under National Stock Number 5950-01-039-3184. Primary manufacturer part number: 99-257-1.
Features
  • Coil,electrical — FSC 5950
  • Body Width: 2.969 INCHES NOMINAL IN
  • Frequency Rating: 60.0 HERTZ NOMINAL SINGLE COMPONENT
  • Winding Operating Voltage: 145.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE WINDING
  • Body Height: 4.500 INCHES NOMINAL IN
  • Mounting Method: FLANGE AND UNTHREADED HOLE(S) SINGLE GROUP
  • Inclosure Type: FULLY INCLOSED
  • Distance Between Mounting Facility Centers: 2.000 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Coil,electrical, cataloged under National Stock Number 5950-01-039-3184, is classified within Federal Supply Class 5950 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Automatic Switch Company Dba Asco. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5950-01-039-3184
Primary Part Number99-257-1
Item NameCoil,electrical
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerAutomatic Switch Company Dba Asco
StatusCANCELLED
Body Width2.969 INCHES NOMINAL IN
Frequency Rating60.0 HERTZ NOMINAL SINGLE COMPONENT
Winding Operating Voltage145.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE WINDING
Body Height4.500 INCHES NOMINAL IN
Mounting MethodFLANGE AND UNTHREADED HOLE(S) SINGLE GROUP
Inclosure TypeFULLY INCLOSED
Distance Between Mounting Facility Centers2.000 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Mounting Facility Quantity2 SINGLE GROUP
Mounting Hole Diameter0.187 INCHES NOMINAL SINGLE GROUP IN
Winding Quantity1 SINGLE COMPONENT
Body Length4.844 INCHES NOMINAL IN
Rating MethodELECTRICAL SINGLE COMPONENT SINGLE WINDING
Reliability IndicatorNOT ESTABLISHED
Terminal Type and Quantity2 WIRE LEAD
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 3
1005-00-703-486899257 INTERCHANGEABLE
Armature
Briggs and Stratton Corp
5130-00-705-701399-257 INTERCHANGEABLE
Nose Assembly,faste
Huck International, Inc. Div Kingston Operations
5130-00-770-612199-2571 INTERCHANGEABLE
Nose Assembly,fastener Installat
Huck International, Inc. Div Kingston Operations
Cross-Reference Index
Part NumberManufacturer
99-257-1 PRIMARY Automatic Switch Company Dba Asco (USA)
099257,FT Automatic Switch Company Dba Asco (USA)
99-257-1-D PRIMARY Automatic Switch Company Dba Asco (USA)
99-257 120VAC60CYC Automatic Switch Company Dba Asco (USA)
99-257 Automatic Switch Company Dba Asco (USA)
099257-001-D PRIMARY Automatic Switch Company Dba Asco (USA)
Related Parts
1005-00-703-4868INTERCHANGEABLE
ARMATURE
99257
5130-00-705-7013INTERCHANGEABLE
NOSE ASSEMBLY,FASTE
99-257
5130-00-770-6121INTERCHANGEABLE
NOSE ASSEMBLY,FASTENER INSTALLAT
99-2571

Frequently Asked Questions

What is NSN 5950-01-039-3184?

NSN 5950-01-039-3184 is a Coil,electrical, manufactured by Automatic Switch Company Dba Asco, classified under FSC 5950 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5950-01-039-3184?

NSN 5950-01-039-3184 has 6 cross-referenced part numbers: 99-257-1 (Automatic Switch Company Dba Asco), 099257,FT (Automatic Switch Company Dba Asco), 99-257-1-D (Automatic Switch Company Dba Asco), 99-257 120VAC60CYC (Automatic Switch Company Dba Asco), 99-257 (Automatic Switch Company Dba Asco) and 1 more.

What NSN replaces 5950-01-039-3184?

There are 3 known substitutes for 5950-01-039-3184: 1005-00-703-4868, 5130-00-705-7013, 5130-00-770-6121. Verify interchangeability with system specifications before substitution.

What are the specifications of 99-257-1?

Key specifications for 99-257-1: Body Width: 2.969 INCHES NOMINAL IN; Frequency Rating: 60.0 HERTZ NOMINAL SINGLE COMPONENT; Winding Operating Voltage: 145.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE WINDING; Body Height: 4.500 INCHES NOMINAL IN. 14 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5950-01-039-3184 still in active supply?

NSN 5950-01-039-3184 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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