PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

10985Transformer,radio Frequency

Dyco Electronics Inc · NSN 5950-00-518-4139 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-518-4139 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-518-4139. Primary manufacturer part number: 10985.
Features
  • Transformer,radio Frequency — FSC 5950
  • Body Height: 1.172 INCHES NOMINAL IN
  • Thread Quantity Per Inch: 56 SINGLE GROUP
  • Mounting Facility Quantity: 1 SINGLE GROUP
  • Coil Form Type: HOLLOW SINGLE COMPONENT
  • Reliability Indicator: NOT ESTABLISHED
  • Adjustment Method and Quantity: 1 ADJUSTABLE CORE SINGLE COMPONENT
  • Inductance Rating: 1.00 MICROHENRIES NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,radio Frequency, cataloged under National Stock Number 5950-00-518-4139, 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 Dyco Electronics Inc. Government technical data includes 18 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. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-00-518-4139
Primary Part Number10985
Item NameTransformer,radio Frequency
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerDyco Electronics Inc
StatusACTIVE
Body Height1.172 INCHES NOMINAL IN
Thread Quantity Per Inch56 SINGLE GROUP
Mounting Facility Quantity1 SINGLE GROUP
Coil Form TypeHOLLOW SINGLE COMPONENT
Reliability IndicatorNOT ESTABLISHED
Adjustment Method and Quantity1 ADJUSTABLE CORE SINGLE COMPONENT
Inductance Rating1.00 MICROHENRIES NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Body Length0.700 INCHES NOMINAL IN
Adjustment Device Drive TypeSHAFT SINGLE COMPONENT
Winding Function and Quantity1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Nominal Thread Size0.086 INCHES SINGLE GROUP IN
Frequency Rating12.5 MEGAHERTZ MINIMUM AND 16.0 MEGAHERTZ MAXIMUM SINGLE COMPONENT
Body Width0.295 INCHES NOMINAL IN
Rating MethodELECTRICAL SINGLE COMPONENT SINGLE PRIMARY
Terminal Type and Quantity4 WIRE LEAD
Mounting MethodCORE AND THREADED HOLE(S) SINGLE GROUP
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Inclosure TypeFULLY INCLOSED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
4930-00-106-983910-985 INTERCHANGEABLE
Oiler,hand
Gc/waldom Inc
5360-00-547-7871 INTERCHANGEABLE
Catch,fastener
1040-00-605-043510985 INTERCHANGEABLE
Ring
Rexnord Industries, Llc Div Couplings Division
6515-01-036-9035 INTERCHANGEABLE
Tube,tracheal
4730-01-173-7977 INTERCHANGEABLE
Strainer Element,special
5940-01-218-9164 INTERCHANGEABLE
Terminal Board Assembly
3130-01-325-266310985 INTERCHANGEABLE
Housing,bearing Unit
DP Mfg Inc
6145-01-370-4316 INTERCHANGEABLE
Cable,special Purpose,electrical
5340-01-433-845610985 INTERCHANGEABLE
Plunger,detent
Jergens Inc Div Tooling Components Division
4720-01-465-2402 INTERCHANGEABLE
Tubing,nonmetallic
Cross-Reference Index
Part NumberManufacturer
10985 Dyco Electronics Inc (USA)
8866756-502 Lockheed Martin Corporation Dba Lockheed Martin Div Lockheed Martin (USA)
8866756-502 Rca Corp Distributor and Special Products Div
Related Parts
4930-00-106-9839INTERCHANGEABLE
OILER,HAND
10-985
5360-00-547-7871INTERCHANGEABLE
CATCH,FASTENER
1040-00-605-0435INTERCHANGEABLE
RING
10985
6515-01-036-9035INTERCHANGEABLE
TUBE,TRACHEAL
4730-01-173-7977INTERCHANGEABLE
STRAINER ELEMENT,SPECIAL
5940-01-218-9164INTERCHANGEABLE
TERMINAL BOARD ASSEMBLY
3130-01-325-2663INTERCHANGEABLE
HOUSING,BEARING UNIT
10985
6145-01-370-4316INTERCHANGEABLE
CABLE,SPECIAL PURPOSE,ELECTRICAL
5340-01-433-8456INTERCHANGEABLE
PLUNGER,DETENT
10985
4720-01-465-2402INTERCHANGEABLE
TUBING,NONMETALLIC
5360-01-492-5060INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
10985

Frequently Asked Questions

What is NSN 5950-00-518-4139?

NSN 5950-00-518-4139 is a Transformer,radio Frequency, manufactured by Dyco Electronics Inc, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-518-4139?

NSN 5950-00-518-4139 has 3 cross-referenced part numbers: 10985 (Dyco Electronics Inc), 8866756-502 (Lockheed Martin Corporation Dba Lockheed Martin Div Lockheed Martin), 8866756-502 (Rca Corp Distributor and Special Products Div).

What NSN replaces 5950-00-518-4139?

There are 11 known substitutes for 5950-00-518-4139: 4930-00-106-9839, 5360-00-547-7871, 1040-00-605-0435 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 10985?

Key specifications for 10985: Body Height: 1.172 INCHES NOMINAL IN; Thread Quantity Per Inch: 56 SINGLE GROUP; Mounting Facility Quantity: 1 SINGLE GROUP; Coil Form Type: HOLLOW SINGLE COMPONENT. 18 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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