PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20-2773Coupler,rotary,radio Frequency

Microwave Development Laboratories, Inc. Dba Microwave Development Laboratories Inc · NSN 5985-00-486-6251 · FSC 5985 · No Item Name Available
Verified by PartsTable
NSN 5985-00-486-6251 — this item is cataloged by the U.S. Government under National Stock Number 5985-00-486-6251. Primary manufacturer part number: 20-2773.
Features
  • Coupler,rotary,radio Frequency — FSC 5985
  • Unit Type: WAVEGUIDE
  • 5 verified cross-references
  • Primary manufacturer: Microwave Development Laboratories, Inc. Dba Microwave Development Laboratories Inc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Coupler,rotary,radio Frequency, cataloged under National Stock Number 5985-00-486-6251, is classified within Federal Supply Class 5985 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Microwave Development Laboratories, Inc. Dba Microwave Development Laboratories Inc. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 3 manufacturers, 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
NSN5985-00-486-6251
Primary Part Number20-2773
Item NameCoupler,rotary,radio Frequency
FSC / FSG5985 / 59 — No Item Name Available
ManufacturerMicrowave Development Laboratories, Inc. Dba Microwave Development Laboratories Inc
StatusACTIVE
Unit TypeWAVEGUIDE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5905-00-138-4239KC11-01X4/9567 INTERCHANGEABLE
Resistor,variable,nonwire Wound,
Sensor Systems, L.l.c. Dba Sensor Systems Llc
3110-00-156-4878177009-48 INTERCHANGEABLE
Bearing,ball,annular
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5945-00-259-9281SC-C-99065 INTERCHANGEABLE
Relay,electromagnetic
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5930-00-489-01491339AS895-1 INTERCHANGEABLE
Switch,toggle
Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier
2990-00-620-8954202773 INTERCHANGEABLE
Line Adadter Drain
Renk America Llc Div Renk America
5950-00-679-8892 INTERCHANGEABLE
Reactor
4320-00-767-2845202773 INTERCHANGEABLE
Seal Assembly,shaft,spring Loade
Honeywell International Inc. Div Aerospace - Torrance
3040-00-866-8155252592 INTERCHANGEABLE
Shaft,coupling,pump
Eaton Aerospace, Llc Dba Jackson South
2520-01-048-70955406 INTERCHANGEABLE
Torque Converter,vehicular
Barney & White Auto Parts Inc
5306-01-054-45655409 INTERCHANGEABLE
Bolt,eye
Hutchinson Aerospace & Industry, Inc. Dba Vlier Div Vlier
Cross-Reference Index
Part NumberManufacturer
5409 Guide Microwave Inc (USA)
252592-1 Raytheon Company Dba Raytheon (USA)
252592 Raytheon Company Dba Raytheon (USA)
20-2773 PRIMARY Microwave Development Laboratories, Inc. Dba Microwave Development Laboratories Inc (USA)
252592-2 Raytheon Company Dba Raytheon (USA)
Related Parts
5905-00-138-4239INTERCHANGEABLE
RESISTOR,VARIABLE,NONWIRE WOUND,
KC11-01X4/9567
3110-00-156-4878INTERCHANGEABLE
BEARING,BALL,ANNULAR
177009-48
5945-00-259-9281INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
SC-C-99065
5930-00-489-0149INTERCHANGEABLE
SWITCH,TOGGLE
1339AS895-1
2990-00-620-8954INTERCHANGEABLE
LINE ADADTER DRAIN
202773
5950-00-679-8892INTERCHANGEABLE
REACTOR
4320-00-767-2845INTERCHANGEABLE
SEAL ASSEMBLY,SHAFT,SPRING LOADE
202773
3040-00-866-8155INTERCHANGEABLE
SHAFT,COUPLING,PUMP
252592
2520-01-048-7095INTERCHANGEABLE
TORQUE CONVERTER,VEHICULAR
5406
5306-01-054-4565INTERCHANGEABLE
BOLT,EYE
5409
5962-01-095-3613INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
6640-01-110-9368INTERCHANGEABLE
FILTRATION SYSTEM
5409

Frequently Asked Questions

What is NSN 5985-00-486-6251?

NSN 5985-00-486-6251 is a Coupler,rotary,radio Frequency, manufactured by Microwave Development Laboratories, Inc. Dba Microwave Development Laboratories Inc, classified under FSC 5985 (No Item Name Available). Status: active.

What are the part numbers for NSN 5985-00-486-6251?

NSN 5985-00-486-6251 has 5 cross-referenced part numbers: 5409 (Guide Microwave Inc), 252592-1 (Raytheon Company Dba Raytheon), 252592 (Raytheon Company Dba Raytheon), 20-2773 (Microwave Development Laboratories, Inc. Dba Microwave Development Laboratories Inc), 252592-2 (Raytheon Company Dba Raytheon).

What NSN replaces 5985-00-486-6251?

There are 12 known substitutes for 5985-00-486-6251: 5905-00-138-4239, 3110-00-156-4878, 5945-00-259-9281 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 20-2773?

Key specifications for 20-2773: Unit Type: WAVEGUIDE. 1 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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