PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

51B274Transformer,radio Frequency

Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple · NSN 5950-00-188-8801 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-188-8801 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-188-8801. Primary manufacturer part number: 51B274.
Features
  • Transformer,radio Frequency — FSC 5950
  • Thread Quantity Per Inch: 32 SINGLE GROUP
  • Mounting Method: THREADED HOLE(S) SINGLE GROUP
  • Winding Function and Quantity: 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
  • Body Length: 2.625 INCHES NOMINAL IN
  • Coil Form Type: SOLID SINGLE COMPONENT
  • Reliability Indicator: NOT ESTABLISHED
  • Terminal Type and Quantity: 4 TAB, SOLDER LUG
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,radio Frequency, cataloged under National Stock Number 5950-00-188-8801, 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 Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple. 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5950-00-188-8801
Primary Part Number51B274
Item NameTransformer,radio Frequency
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerNorthrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple
StatusCANCELLED
Thread Quantity Per Inch32 SINGLE GROUP
Mounting MethodTHREADED HOLE(S) SINGLE GROUP
Winding Function and Quantity1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Body Length2.625 INCHES NOMINAL IN
Coil Form TypeSOLID SINGLE COMPONENT
Reliability IndicatorNOT ESTABLISHED
Terminal Type and Quantity4 TAB, SOLDER LUG
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Inclosure TypeOPEN
Nominal Thread Size0.138 INCHES SINGLE GROUP IN
Frequency Rating550.0 KILOHERTZ MINIMUM AND 1.6 MEGAHERTZ MAXIMUM SINGLE COMPONENT
Body Outside Diameter0.969 INCHES NOMINAL IN
Mounting Facility Quantity2 SINGLE GROUP
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5935-00-070-3589694 INTERCHANGEABLE
Socket,tube Turret
Vector Electronics & Technology Inc
4820-00-073-0510694-00 INTERCHANGEABLE
Seat,valve
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
3020-00-219-822969-4 INTERCHANGEABLE
Gear
Microtest Gear Co
4730-00-240-1679ASMEB16.39-18-T-A INTERCHANGEABLE
Union,pipe
The American Society of Mechanical Engineers
5120-00-243-94015120-00-243-9401 INTERCHANGEABLE
Roller,hand
General Services Administration Federal Supply Service
5950-00-268-8949 INTERCHANGEABLE
Coil,radio Frequency
5120-00-473-74807082915 INTERCHANGEABLE
Replacer Oil Seal
U S Army Tank Automotive Command Amsta-Im-Mm
4510-00-482-8276694 INTERCHANGEABLE
Faucet,1-4npt
Chicago Faucet Co the
5985-00-647-0587522-1247-002 INTERCHANGEABLE
Dummy Load,electrical
Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
2530-00-693-1029 INTERCHANGEABLE
Nut,cap,dual Wheel Mounting
Cross-Reference Index
Part NumberManufacturer
694 S W Inductor Co (USA)
51B274 PRIMARY Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple (USA)
Related Parts
5935-00-070-3589INTERCHANGEABLE
SOCKET,TUBE TURRET
694
4820-00-073-0510INTERCHANGEABLE
SEAT,VALVE
694-00
3020-00-219-8229INTERCHANGEABLE
GEAR
69-4
4730-00-240-1679INTERCHANGEABLE
UNION,PIPE
ASMEB16.39-18-T-A
5120-00-243-9401INTERCHANGEABLE
ROLLER,HAND
5120-00-243-9401
5950-00-268-8949INTERCHANGEABLE
COIL,RADIO FREQUENCY
5120-00-473-7480INTERCHANGEABLE
REPLACER OIL SEAL
7082915
4510-00-482-8276INTERCHANGEABLE
FAUCET,1-4NPT
694
5985-00-647-0587INTERCHANGEABLE
DUMMY LOAD,ELECTRICAL
522-1247-002
2530-00-693-1029INTERCHANGEABLE
NUT,CAP,DUAL WHEEL MOUNTING
5945-00-857-8908INTERCHANGEABLE
SOLENOID,ELECTRICAL
59A209659-7
5315-00-869-0697INTERCHANGEABLE
PIN,GROOVED,HEADLESS
069-00400

Frequently Asked Questions

What is NSN 5950-00-188-8801?

NSN 5950-00-188-8801 is a Transformer,radio Frequency, manufactured by Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple, classified under FSC 5950 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5950-00-188-8801?

NSN 5950-00-188-8801 has 2 cross-referenced part numbers: 694 (S W Inductor Co), 51B274 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple).

What NSN replaces 5950-00-188-8801?

There are 12 known substitutes for 5950-00-188-8801: 5935-00-070-3589, 4820-00-073-0510, 3020-00-219-8229 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 51B274?

Key specifications for 51B274: Thread Quantity Per Inch: 32 SINGLE GROUP; Mounting Method: THREADED HOLE(S) SINGLE GROUP; Winding Function and Quantity: 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT; Body Length: 2.625 INCHES NOMINAL IN. 13 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5950-00-188-8801 still in active supply?

NSN 5950-00-188-8801 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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