PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1891Transformer,power

Standard Industries · NSN 5950-01-216-4666 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-01-216-4666 — this item is cataloged by the U.S. Government under National Stock Number 5950-01-216-4666. Primary manufacturer part number: 1891.
Features
  • Transformer,power — FSC 5950
  • Reliability Indicator: NOT ESTABLISHED
  • Frequency Rating: 1.6 KILOHERTZ NOMINAL SINGLE COMPONENT
  • Inclosure Type: FULLY INCLOSED
  • Terminal Type and Quantity: 8 PIN
  • Winding Function and Quantity: 2 PRIMARY AND 2 SECONDARY SINGLE COMPONENT
  • Winding Operating Current: 0.82 AMPERES AC MAXIMUM SINGLE COMPONENT ALL SECONDARY
  • Winding Operating Voltage: 65.00 AC VOLTS NOMINAL SINGLE COMPONENT ALL SECONDARY
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,power, cataloged under National Stock Number 5950-01-216-4666, 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 Standard Industries. Government technical data includes 10 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-01-216-4666
Primary Part Number1891
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerStandard Industries
StatusACTIVE
Reliability IndicatorNOT ESTABLISHED
Frequency Rating1.6 KILOHERTZ NOMINAL SINGLE COMPONENT
Inclosure TypeFULLY INCLOSED
Terminal Type and Quantity8 PIN
Winding Function and Quantity2 PRIMARY AND 2 SECONDARY SINGLE COMPONENT
Winding Operating Current0.82 AMPERES AC MAXIMUM SINGLE COMPONENT ALL SECONDARY
Winding Operating Voltage65.00 AC VOLTS NOMINAL SINGLE COMPONENT ALL SECONDARY
Winding Operating Voltage53.00 AC VOLTS NOMINAL SINGLE COMPONENT ALL PRIMARY
Mounting MethodTERMINAL SINGLE GROUP
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
6685-00-001-4183 INTERCHANGEABLE
Control,positioner
5935-00-201-23381891 INTERCHANGEABLE
Jack,tip
Entron Industries Limited Partnership Dba Entron Industries Property Div
5999-00-264-7968591B1-1 INTERCHANGEABLE
Cap,electrical
Cardwell Condenser Corp Lapointe-Admiral Div
4820-00-367-4867189-1 INTERCHANGEABLE
Cock,drain
Dresser Industries Inc Leroi Div
5360-00-455-71471891 INTERCHANGEABLE
Spring,helical,compression
Thompson Emery Machine & Supply Co
5331-00-515-55584036D28 INTERCHANGEABLE
O-Ring
Curtiss-Wright Controls, Inc. Div Actuation Division
5950-00-648-0777 INTERCHANGEABLE
Transformer,radio Frequency
6240-00-770-33721891 INTERCHANGEABLE
Lamp,incandescent
Gte Products Corp Sylvania Miniature Lighting Div
5935-00-814-5835GC810A8B INTERCHANGEABLE
Connector,plug,electrical
Northrop Grumman Systems Corporation
6105-00-851-000714059 INTERCHANGEABLE
Motor,alternating Current
Ward Leonard Ct Llc
Cross-Reference Index
Part NumberManufacturer
3L0124E001 Northrop Grumman Corp Electronic Systems Defensive System Div (USA)
1891 PRIMARY Standard Industries (USA)
14059 PRIMARY Magnespec Inc (USA)
Related Parts
6685-00-001-4183INTERCHANGEABLE
CONTROL,POSITIONER
5935-00-201-2338INTERCHANGEABLE
JACK,TIP
1891
5999-00-264-7968INTERCHANGEABLE
CAP,ELECTRICAL
591B1-1
4820-00-367-4867INTERCHANGEABLE
COCK,DRAIN
189-1
5360-00-455-7147INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
1891
5331-00-515-5558INTERCHANGEABLE
O-RING
4036D28
5950-00-648-0777INTERCHANGEABLE
TRANSFORMER,RADIO FREQUENCY
6240-00-770-3372INTERCHANGEABLE
LAMP,INCANDESCENT
1891
5935-00-814-5835INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
GC810A8B
6105-00-851-0007INTERCHANGEABLE
MOTOR,ALTERNATING CURRENT
14059
4820-00-969-2700INTERCHANGEABLE
SEAT,VALVE
1891
6750-01-379-7328INTERCHANGEABLE
PAPER,PHOTOGRAPHIC

Frequently Asked Questions

What is NSN 5950-01-216-4666?

NSN 5950-01-216-4666 is a Transformer,power, manufactured by Standard Industries, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-01-216-4666?

NSN 5950-01-216-4666 has 3 cross-referenced part numbers: 3L0124E001 (Northrop Grumman Corp Electronic Systems Defensive System Div), 1891 (Standard Industries), 14059 (Magnespec Inc).

What NSN replaces 5950-01-216-4666?

There are 12 known substitutes for 5950-01-216-4666: 6685-00-001-4183, 5935-00-201-2338, 5999-00-264-7968 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1891?

Key specifications for 1891: Reliability Indicator: NOT ESTABLISHED; Overall Width: 1.510 INCHES NOMINAL IN; Overall Length: 2.780 INCHES NOMINAL IN; Frequency Rating: 1.6 KILOHERTZ NOMINAL SINGLE COMPONENT. 13 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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