PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20-2649Coupler,rotary,radio Frequency

Microwave Development Laboratories, Inc. Dba Microwave Development Laboratories Inc · NSN 5985-00-427-5216 · FSC 5985 · No Item Name Available
Verified by PartsTable
NSN 5985-00-427-5216 — this item is cataloged by the U.S. Government under National Stock Number 5985-00-427-5216. Primary manufacturer part number: 20-2649.
Features
  • Coupler,rotary,radio Frequency — FSC 5985
  • Mounting Configuration: FOUR 0.169 IN. DIA MTG HOLES 1.22 IN. BY 1.28 IN. C TO C IN
  • Radio Frequency Rating: 10.0 GIGAHERTZ MINIMUM AND 10.5 GIGAHERTZ MAXIMUM
  • Unit Type: WAVEGUIDE
  • Material: ALUMINUM
  • 5 verified cross-references
  • Primary manufacturer: Microwave Development Laboratories, Inc. Dba Microwave Development Laboratories Inc
Applications
  • Applications requiring Aluminum construction
General Description

The Coupler,rotary,radio Frequency, cataloged under National Stock Number 5985-00-427-5216, 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 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 5 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
NSN5985-00-427-5216
Primary Part Number20-2649
Item NameCoupler,rotary,radio Frequency
FSC / FSG5985 / 59 — No Item Name Available
ManufacturerMicrowave Development Laboratories, Inc. Dba Microwave Development Laboratories Inc
StatusACTIVE
Mounting ConfigurationFOUR 0.169 IN. DIA MTG HOLES 1.22 IN. BY 1.28 IN. C TO C IN
Radio Frequency Rating10.0 GIGAHERTZ MINIMUM AND 10.5 GIGAHERTZ MAXIMUM
Unit TypeWAVEGUIDE
MaterialALUMINUM
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5305-00-033-25252-158 INTERCHANGEABLE
Screw,machine
Unison Industries Llc
5962-00-086-7484 INTERCHANGEABLE
Microcircuit,digital
9540-00-145-5771 INTERCHANGEABLE
Angle,structural
3110-00-151-9559EE117063 ASSY 90015 INTERCHANGEABLE
Bearing,roller,tapered
The Timken Corporation
5999-00-295-62312158 INTERCHANGEABLE
Clamp,electrical
Ohmite Holding, L.l.c. Dba Ohmite Manufacturing
5360-00-298-3188 INTERCHANGEABLE
Spring,helical,compression
3415-00-407-1424 INTERCHANGEABLE
Grinding Machine,centerless,exte
3120-00-580-3075 INTERCHANGEABLE
Bearing,sleeve
5310-00-582-985210015465-013 INTERCHANGEABLE
Washer,shouldered
Us Army Aviation and Missile Command
2805-00-740-1375630396 INTERCHANGEABLE
Strainer,oil Pump
Am General Llc
Cross-Reference Index
Part NumberManufacturer
562164 Lockheed Martin Corporation Div Rms - Mitchel Field (USA)
2158 Frontgrade Technologies Inc. (USA)
2920208 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
20-2649 PRIMARY Microwave Development Laboratories, Inc. Dba Microwave Development Laboratories Inc (USA)
2158 Kevlin Corporation Dba Cobham Sensor Systems Div Kevlin Division (USA)
Related Parts
5305-00-033-2525INTERCHANGEABLE
SCREW,MACHINE
2-158
5962-00-086-7484INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
9540-00-145-5771INTERCHANGEABLE
ANGLE,STRUCTURAL
3110-00-151-9559INTERCHANGEABLE
BEARING,ROLLER,TAPERED
EE117063 ASSY 90015
5999-00-295-6231INTERCHANGEABLE
CLAMP,ELECTRICAL
2158
5360-00-298-3188INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
3415-00-407-1424INTERCHANGEABLE
GRINDING MACHINE,CENTERLESS,EXTE
3120-00-580-3075INTERCHANGEABLE
BEARING,SLEEVE
5310-00-582-9852INTERCHANGEABLE
WASHER,SHOULDERED
10015465-013
2805-00-740-1375INTERCHANGEABLE
STRAINER,OIL PUMP
630396
1660-00-791-4204INTERCHANGEABLE
SEAL,WHEEL
202649
6240-00-905-6050INTERCHANGEABLE
LAMP,INCANDESCENT

Frequently Asked Questions

What is NSN 5985-00-427-5216?

NSN 5985-00-427-5216 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 5985-00-427-5216?

NSN 5985-00-427-5216 has 5 cross-referenced part numbers: 562164 (Lockheed Martin Corporation Div Rms - Mitchel Field), 2158 (Frontgrade Technologies Inc.), 2920208 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 20-2649 (Microwave Development Laboratories, Inc. Dba Microwave Development Laboratories Inc), 2158 (Kevlin Corporation Dba Cobham Sensor Systems Div Kevlin Division).

What NSN replaces 5985-00-427-5216?

There are 12 known substitutes for 5985-00-427-5216: 5305-00-033-2525, 5962-00-086-7484, 9540-00-145-5771 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 20-2649?

Key specifications for 20-2649: Mounting Configuration: FOUR 0.169 IN. DIA MTG HOLES 1.22 IN. BY 1.28 IN. C TO C IN; Radio Frequency Rating: 10.0 GIGAHERTZ MINIMUM AND 10.5 GIGAHERTZ MAXIMUM; Unit Type: WAVEGUIDE; Material: ALUMINUM. 7 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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