PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20137Transformer,radio Frequency

Sensor Systems, L.l.c. Dba Sensor Systems Llc · NSN 5950-00-645-9701 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-645-9701 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-645-9701. Primary manufacturer part number: 20137.
Features
  • Transformer,radio Frequency — FSC 5950
  • Reliability Indicator: NOT ESTABLISHED
  • Winding Function and Quantity: 2 PRIMARY AND 4 SECONDARY SINGLE COMPONENT
  • Rating Method: WINDING TURNS SINGLE COMPONENT ALL SECONDARY
  • Turn Quantity: 225 SINGLE COMPONENT ALL PRIMARY
  • Terminal Type and Quantity: 12 WIRE LEAD
  • Body Length: 4.312 INCHES NOMINAL IN
  • Coil Form Type: SOLID SINGLE COMPONENT
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,radio Frequency, cataloged under National Stock Number 5950-00-645-9701, 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 Sensor Systems, L.l.c. Dba Sensor Systems Llc. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, 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
NSN5950-00-645-9701
Primary Part Number20137
Item NameTransformer,radio Frequency
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerSensor Systems, L.l.c. Dba Sensor Systems Llc
StatusACTIVE
Reliability IndicatorNOT ESTABLISHED
Winding Function and Quantity2 PRIMARY AND 4 SECONDARY SINGLE COMPONENT
Rating MethodWINDING TURNS SINGLE COMPONENT ALL SECONDARY
Turn Quantity225 SINGLE COMPONENT ALL PRIMARY
Terminal Type and Quantity12 WIRE LEAD
Body Length4.312 INCHES NOMINAL IN
Coil Form TypeSOLID SINGLE COMPONENT
Mounting Facility Quantity2 SINGLE GROUP
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Thread Quantity Per Inch32 SINGLE GROUP
Inclosure TypeFULLY INCLOSED
Winding Conductor Size0.02846 INCHES AMERICAN WIRE GAGE SINGLE COMPONENT ALL SECONDARY IN
Turn Quantity215 SINGLE COMPONENT ALL SECONDARY
Nominal Thread Size0.138 INCHES SINGLE GROUP IN
Winding Conductor Size0.02257 INCHES AMERICAN WIRE GAGE SINGLE COMPONENT ALL PRIMARY IN
Rating MethodWINDING TURNS SINGLE COMPONENT ALL PRIMARY
Mounting MethodTHREADED HOLE(S) SINGLE GROUP
Body Outside Diameter1.250 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5331-00-006-2382N0304 2-013 INTERCHANGEABLE
O-Ring
Parker-Hannifin Corp Div O-Ring Division
4730-00-032-1517 INTERCHANGEABLE
Trap,steam
4820-00-064-742020137PC15-17T024 INTERCHANGEABLE
Seat,valve
Velan Valve Corp.
5310-00-245-86700441436A01 INTERCHANGEABLE
Washer,lock
Prestolite Electric Inc
4820-00-405-5105 INTERCHANGEABLE
Valve,safety Relief
5133-00-409-0392 INTERCHANGEABLE
Drill,twist
5950-00-498-2153201-37 INTERCHANGEABLE
Transformer,power,s
L3harris Technologies, Inc.
5930-00-600-3077 INTERCHANGEABLE
Switch,gang
5930-00-715-2647 INTERCHANGEABLE
Coil
5130-00-807-3010 INTERCHANGEABLE
Brush,wire,rotary Cup
Cross-Reference Index
Part NumberManufacturer
20137 PRIMARY Sensor Systems, L.l.c. Dba Sensor Systems Llc (USA)
Related Parts
5331-00-006-2382INTERCHANGEABLE
O-RING
N0304 2-013
4730-00-032-1517INTERCHANGEABLE
TRAP,STEAM
4820-00-064-7420INTERCHANGEABLE
SEAT,VALVE
20137PC15-17T024
5310-00-245-8670INTERCHANGEABLE
WASHER,LOCK
0441436A01
4820-00-405-5105INTERCHANGEABLE
VALVE,SAFETY RELIEF
5133-00-409-0392INTERCHANGEABLE
DRILL,TWIST
5950-00-498-2153INTERCHANGEABLE
TRANSFORMER,POWER,S
201-37
5930-00-600-3077INTERCHANGEABLE
SWITCH,GANG
5930-00-715-2647INTERCHANGEABLE
COIL
5130-00-807-3010INTERCHANGEABLE
BRUSH,WIRE,ROTARY CUP
5998-01-017-8886INTERCHANGEABLE
EXTENDER CARD,ELECTRONIC TEST
5935-01-023-5446INTERCHANGEABLE
CONNECTOR BODY,PLUG,ELECTRICAL

Frequently Asked Questions

What is NSN 5950-00-645-9701?

NSN 5950-00-645-9701 is a Transformer,radio Frequency, manufactured by Sensor Systems, L.l.c. Dba Sensor Systems Llc, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-645-9701?

NSN 5950-00-645-9701 has 1 cross-referenced part number: 20137 (Sensor Systems, L.l.c. Dba Sensor Systems Llc).

What NSN replaces 5950-00-645-9701?

There are 12 known substitutes for 5950-00-645-9701: 5331-00-006-2382, 4730-00-032-1517, 4820-00-064-7420 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 20137?

Key specifications for 20137: Reliability Indicator: NOT ESTABLISHED; Winding Function and Quantity: 2 PRIMARY AND 4 SECONDARY SINGLE COMPONENT; Rating Method: WINDING TURNS SINGLE COMPONENT ALL SECONDARY; Turn Quantity: 225 SINGLE COMPONENT ALL PRIMARY. 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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