PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

7-131ACoil,radio Frequency

Delta Coils · NSN 5950-00-840-5400 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-840-5400 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-840-5400. Primary manufacturer part number: 7-131A.
Features
  • Coil,radio Frequency — FSC 5950
  • Reliability Indicator: NOT ESTABLISHED
  • Terminal Type and Quantity: 2 COLLAR/RING
  • Thread Series Designator: UNF SINGLE GROUP
  • Inductance Rating: 3.00 MICROHENRIES MINIMUM AND 6.00 MICROHENRIES MAXIMUM SINGLE COMPONENT SINGLE WINDING
  • Nominal Thread Size: 0.190 INCHES SINGLE GROUP IN
  • Coil Form Type: HOLLOW SINGLE COMPONENT
  • Turn Quantity: 30 SINGLE COMPONENT SINGLE WINDING
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Coil,radio Frequency, cataloged under National Stock Number 5950-00-840-5400, 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 Delta Coils. Government technical data includes 20 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-00-840-5400
Primary Part Number7-131A
Item NameCoil,radio Frequency
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerDelta Coils
StatusACTIVE
Reliability IndicatorNOT ESTABLISHED
Terminal Type and Quantity2 COLLAR/RING
Thread Series DesignatorUNF SINGLE GROUP
Inductance Rating3.00 MICROHENRIES MINIMUM AND 6.00 MICROHENRIES MAXIMUM SINGLE COMPONENT SINGLE WINDING
Nominal Thread Size0.190 INCHES SINGLE GROUP IN
Coil Form TypeHOLLOW SINGLE COMPONENT
Turn Quantity30 SINGLE COMPONENT SINGLE WINDING
Rating MethodELECTRICAL AND WINDING TURNS SINGLE COMPONENT SINGLE WINDING
Adjustment Method and Quantity1 ADJUSTABLE CORE SINGLE COMPONENT
Inclosure TypeOPEN
Mounting MethodTHREADED BUSHING SINGLE GROUP
Body Length1.094 INCHES NOMINAL IN
DC Resistance Rating in Ohms0.216 SINGLE COMPONENT SINGLE WINDING
Quality Factor95 MINIMUM SINGLE COMPONENT SINGLE WINDING
Winding Conductor Size0.01003 INCHES AMERICAN WIRE GAGE SINGLE COMPONENT SINGLE WINDING IN
Adjustment Device Drive TypeSLOTTED SCREW SINGLE COMPONENT
Thread Quantity Per Inch32 SINGLE GROUP
Test Data DocumentC4546-91820 DRAWING (THIS IS THE BASIC GOVERNING DRAWING, SUCH AS A CONTRACTOR DRAWING, ORIGINAL EQUIPMENT MANUFACTURER DRAWING, ETC.; EXCLUDES ANY SPECIFICATION, STANDARD OR OTHER DOCUMENT THAT MAY BE REFERENCED IN A BASIC GOVERNING DRAWING)
Body Outside Diameter0.281 INCHES NOMINAL IN
Core ConstructionPOWDERED SINGLE COMPONENT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
5815-00-065-60544546 INTERCHANGEABLE
Selector Magnet Ass
Carey Manufacturing Co, Inc Dba Amatom Electronic Hardware Div Amatom Electronic Hardware
5905-00-078-6333 INTERCHANGEABLE
Resistor,fixed,wire Wound,induct
5962-00-147-4472374104-1 INTERCHANGEABLE
Microcircuit,linear
L3harris Technologies, Inc. Dba Harris Corp Div Antenna Products
4820-00-482-36214546 INTERCHANGEABLE
Plug,relief Valve
Husco International Inc
5935-00-660-5467SM-D-377388 GR5 INTERCHANGEABLE
Connector,plug,electrical
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
6240-00-866-4143 INTERCHANGEABLE
Lamp,incandescent
5935-00-990-0100413324-1 INTERCHANGEABLE
Connector,receptacle,electrical
Raytheon Company Dba Raytheon
5915-01-196-96144546 INTERCHANGEABLE
Filter,band Suppression
Teledyne Defense Electronics, Llc Dba Teledyne Microwave Solutions
4930-01-515-37269903-2931 INTERCHANGEABLE
Back Disc
Hannay Reels Inc
6130-01-519-38304546 INTERCHANGEABLE
Power Supply
Northwest Power, Inc. Dba Northwest Power Integrations Inc
Cross-Reference Index
Part NumberManufacturer
7-131A Delta Coils (USA)
SA8405-400 Aschbacher & Associates Inc (USA)
C4546 Jetronic Industries, Inc. Dba Jetronic Industries, Inc. Div Contracts (USA)
4546 Jetronic Industries, Inc. Dba Jetronic Industries, Inc. Div Contracts (USA)
Related Parts
5815-00-065-6054INTERCHANGEABLE
SELECTOR MAGNET ASS
4546
5905-00-078-6333INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND,INDUCT
5962-00-147-4472INTERCHANGEABLE
MICROCIRCUIT,LINEAR
374104-1
4820-00-482-3621INTERCHANGEABLE
PLUG,RELIEF VALVE
4546
5935-00-660-5467INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
SM-D-377388 GR5
6240-00-866-4143INTERCHANGEABLE
LAMP,INCANDESCENT
5935-00-990-0100INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
413324-1
5915-01-196-9614INTERCHANGEABLE
FILTER,BAND SUPPRESSION
4546
4930-01-515-3726INTERCHANGEABLE
BACK DISC
9903-2931
6130-01-519-3830INTERCHANGEABLE
POWER SUPPLY
4546
5930-01-520-8661INTERCHANGEABLE
SWITCH,STARTER
4546

Frequently Asked Questions

What is NSN 5950-00-840-5400?

NSN 5950-00-840-5400 is a Coil,radio Frequency, manufactured by Delta Coils, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-840-5400?

NSN 5950-00-840-5400 has 4 cross-referenced part numbers: 7-131A (Delta Coils), SA8405-400 (Aschbacher & Associates Inc), C4546 (Jetronic Industries, Inc. Dba Jetronic Industries, Inc. Div Contracts), 4546 (Jetronic Industries, Inc. Dba Jetronic Industries, Inc. Div Contracts).

What NSN replaces 5950-00-840-5400?

There are 11 known substitutes for 5950-00-840-5400: 5815-00-065-6054, 5905-00-078-6333, 5962-00-147-4472 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 7-131A?

Key specifications for 7-131A: Reliability Indicator: NOT ESTABLISHED; Terminal Type and Quantity: 2 COLLAR/RING; Thread Series Designator: UNF SINGLE GROUP; Inductance Rating: 3.00 MICROHENRIES MINIMUM AND 6.00 MICROHENRIES MAXIMUM SINGLE COMPONENT SINGLE WINDING. 20 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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