PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

121804Transformer,current

Arnold a Semler Inc · NSN 5950-00-648-5622 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-648-5622 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-648-5622. Primary manufacturer part number: 121804.
Features
  • Transformer,current — FSC 5950
  • Reliability Indicator: NOT ESTABLISHED
  • Body Length: 1.062 INCHES NOMINAL IN
  • Input-Output Phase Relationship: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
  • Winding Function and Quantity: 1 SECONDARY SINGLE COMPONENT
  • Mounting Method: BRACKET(S) AND CLAMP SINGLE GROUP
  • Winding Operating Voltage: 500.00 AC VOLTS MAXIMUM SINGLE COMPONENT SINGLE PRIMARY
  • Winding Operating Current: 150.0 AMPERES AC MAXIMUM SINGLE COMPONENT SINGLE PRIMARY
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,current, cataloged under National Stock Number 5950-00-648-5622, 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 Arnold a Semler Inc. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 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
NSN5950-00-648-5622
Primary Part Number121804
Item NameTransformer,current
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerArnold a Semler Inc
StatusACTIVE
Reliability IndicatorNOT ESTABLISHED
Body Length1.062 INCHES NOMINAL IN
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Winding Function and Quantity1 SECONDARY SINGLE COMPONENT
Mounting MethodBRACKET(S) AND CLAMP SINGLE GROUP
Winding Operating Voltage500.00 AC VOLTS MAXIMUM SINGLE COMPONENT SINGLE PRIMARY
Winding Operating Current150.0 AMPERES AC MAXIMUM SINGLE COMPONENT SINGLE PRIMARY
Terminal Type and Quantity4 WIRE LEAD
Body Outside Diameter3.500 INCHES NOMINAL IN
Frequency Rating50.0 HERTZ MINIMUM AND 70.0 HERTZ MAXIMUM SINGLE COMPONENT
Installation for Which DesignedINDOOR NONPORTABLE
Winding Operating Current5.0 AMPERES AC MAXIMUM SINGLE COMPONENT SINGLE SECONDARY
Inclosure TypeOPEN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5305-00-124-5620121804 INTERCHANGEABLE
Screw,cap,hexagon Head
Rolls-Royce Solutions America Inc
5310-00-826-0325107003-517 INTERCHANGEABLE
Washer,lock
Raytheon Company
2540-00-876-7006121804PS INTERCHANGEABLE
Cushion,seat Back,vehicular
Seats Inc Div Seats Incorporated
5310-00-978-610316-1880 INTERCHANGEABLE
Washer,lock
Eaton Corp Opns & Technical Center
6105-01-408-7835 INTERCHANGEABLE
Motor,alternating Current
Cross-Reference Index
Part NumberManufacturer
121804 Arnold a Semler Inc (USA)
302C214 Cummins Power Generation Inc. (USA)
Related Parts
5305-00-124-5620INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
121804
5310-00-826-0325INTERCHANGEABLE
WASHER,LOCK
107003-517
2540-00-876-7006INTERCHANGEABLE
CUSHION,SEAT BACK,VEHICULAR
121804PS
5310-00-978-6103INTERCHANGEABLE
WASHER,LOCK
16-1880
6105-01-408-7835INTERCHANGEABLE
MOTOR,ALTERNATING CURRENT

Frequently Asked Questions

What is NSN 5950-00-648-5622?

NSN 5950-00-648-5622 is a Transformer,current, manufactured by Arnold a Semler Inc, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-648-5622?

NSN 5950-00-648-5622 has 2 cross-referenced part numbers: 121804 (Arnold a Semler Inc), 302C214 (Cummins Power Generation Inc.).

What NSN replaces 5950-00-648-5622?

There are 5 known substitutes for 5950-00-648-5622: 5305-00-124-5620, 5310-00-826-0325, 2540-00-876-7006 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 121804?

Key specifications for 121804: Reliability Indicator: NOT ESTABLISHED; Body Length: 1.062 INCHES NOMINAL IN; Input-Output Phase Relationship: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT; Winding Function and Quantity: 1 SECONDARY SINGLE COMPONENT. 14 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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