PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20-2921Coupler,rotary,radio Frequency

Microwave Development Laboratories, Inc. Dba Microwave Development Laboratories Inc · NSN 5985-00-160-2172 · FSC 5985 · No Item Name Available
Verified by PartsTable
NSN 5985-00-160-2172 — this item is cataloged by the U.S. Government under National Stock Number 5985-00-160-2172. Primary manufacturer part number: 20-2921.
Features
  • Coupler,rotary,radio Frequency — FSC 5985
  • 3 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 5985-00-160-2172, 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. 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.

Catalog Facts
Item NameCoupler,rotary,radio Frequency
FSC / FSG5985 — No Item Name Available (FSG 59)
ManufacturersNorthrop Grumman Systems Corporation (CAGE 26512); Microwave Development Laboratories, Inc. Dba Microwave Development Laboratories Inc (CAGE 01456); Skyworks Solutions, Inc. (CAGE 17540)
Technical Specifications
ParameterValue
NSN5985-00-160-2172
Primary Part Number20-2921
Item NameCoupler,rotary,radio Frequency
FSC / FSG5985 / 59 — No Item Name Available
ManufacturerMicrowave Development Laboratories, Inc. Dba Microwave Development Laboratories Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
1650-00-730-361320292-1 INTERCHANGEABLE
Chain Assembly,oil Overflow
Defense & Development Enterprises Llc
2530-00-737-3043202921 INTERCHANGEABLE
Cover Air Compresso
Bendix Commercial Vehicle Systems Llc Dba Bendix Commercial Vehicle Systems
1660-00-999-301319028-1 INTERCHANGEABLE
Parts Kit,turbine,o
Hamilton Sundstrand Corporation Dba Collins Aerospace
4730-01-159-2862458-56155-1 INTERCHANGEABLE
Bolt,fluid Passage
Cm Manufacturing Inc Dba Cm Manufacturing Inc
6680-01-228-861139145 INTERCHANGEABLE
Transmitter,liquid Quantity
Setra Systems, Inc. Dba Gems Sensors
4520-01-257-219939145 INTERCHANGEABLE
Heating Element,electrical,nonim
Indeeco Llc Dba Indeeco
5895-01-276-5125 INTERCHANGEABLE
Selector,receiver Signal
4310-01-278-867839145 INTERCHANGEABLE
Ring,piston
Leroi International Inc Dba Compair Leroi
5895-01-307-7346 INTERCHANGEABLE
Selector,receiver Signal
5895-01-307-7347 INTERCHANGEABLE
Selector,receiver Signal
Cross-Reference Index
Part NumberManufacturer
128SCAV622-3 Northrop Grumman Systems Corporation (USA)
20-2921 PRIMARY Microwave Development Laboratories, Inc. Dba Microwave Development Laboratories Inc (USA)
39145 Skyworks Solutions, Inc. (USA)
Related Parts
1650-00-730-3613INTERCHANGEABLE
CHAIN ASSEMBLY,OIL OVERFLOW
20292-1
2530-00-737-3043INTERCHANGEABLE
COVER AIR COMPRESSO
202921
1660-00-999-3013INTERCHANGEABLE
PARTS KIT,TURBINE,O
19028-1
4730-01-159-2862INTERCHANGEABLE
BOLT,FLUID PASSAGE
458-56155-1
6680-01-228-8611INTERCHANGEABLE
TRANSMITTER,LIQUID QUANTITY
39145
4520-01-257-2199INTERCHANGEABLE
HEATING ELEMENT,ELECTRICAL,NONIM
39145
5895-01-276-5125INTERCHANGEABLE
SELECTOR,RECEIVER SIGNAL
4310-01-278-8678INTERCHANGEABLE
RING,PISTON
39145
5895-01-307-7346INTERCHANGEABLE
SELECTOR,RECEIVER SIGNAL
5895-01-307-7347INTERCHANGEABLE
SELECTOR,RECEIVER SIGNAL
5895-01-308-3745INTERCHANGEABLE
SELECTOR,RECEIVER SIGNAL

Frequently Asked Questions

What is NSN 5985-00-160-2172?

NSN 5985-00-160-2172 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 5985-00-160-2172?

NSN 5985-00-160-2172 has 3 cross-referenced part numbers: 128SCAV622-3 (Northrop Grumman Systems Corporation), 20-2921 (Microwave Development Laboratories, Inc. Dba Microwave Development Laboratories Inc), 39145 (Skyworks Solutions, Inc.).

What NSN replaces 5985-00-160-2172?

There are 11 known substitutes for 5985-00-160-2172: 1650-00-730-3613, 2530-00-737-3043, 1660-00-999-3013 and 8 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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