PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4609Adapter,waveguide

Narda Holdings, Inc. Dba Narda-Miteq Div Narda-Miteq · NSN 5985-01-025-3902 · FSC 5985 · No Item Name Available
Verified by PartsTable
NSN 5985-01-025-3902 — this item is cataloged by the U.S. Government under National Stock Number 5985-01-025-3902. Primary manufacturer part number: 4609.
Features
  • Adapter,waveguide — FSC 5985
  • Voltage Standing Wave Ratio: 1.25
  • Material: COPPER ALLOY SINGLE TUBING JACKET
  • Flange Outside Height: 1.296 INCHES MINIMUM AND 1.328 INCHES MAXIMUM SINGLE FLANGE IN
  • Flange Outside Width: 1.296 INCHES MINIMUM AND 1.328 INCHES MAXIMUM SINGLE FLANGE IN
  • Adapter Overall Width: 1.312 INCHES NOMINAL IN
  • Adapter Overall Height: 1.359 INCHES NOMINAL IN
  • Flange Depth: 0.296 INCHES MINIMUM AND 0.328 INCHES MAXIMUM SINGLE FLANGE IN
Applications
  • Applications requiring Copper Alloy Single Tubing Jacket construction
General Description

The Adapter,waveguide, cataloged under National Stock Number 5985-01-025-3902, 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 Narda Holdings, Inc. Dba Narda-Miteq Div Narda-Miteq. Government technical data includes 28 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
NSN5985-01-025-3902
Primary Part Number4609
Item NameAdapter,waveguide
FSC / FSG5985 / 59 — No Item Name Available
ManufacturerNarda Holdings, Inc. Dba Narda-Miteq Div Narda-Miteq
StatusACTIVE
Voltage Standing Wave Ratio1.25
MaterialCOPPER ALLOY SINGLE TUBING JACKET
Flange Outside Height1.296 INCHES MINIMUM AND 1.328 INCHES MAXIMUM SINGLE FLANGE IN
Flange Outside Width1.296 INCHES MINIMUM AND 1.328 INCHES MAXIMUM SINGLE FLANGE IN
Adapter Overall Width1.312 INCHES NOMINAL IN
Adapter Overall Height1.359 INCHES NOMINAL IN
Flange Depth0.296 INCHES MINIMUM AND 0.328 INCHES MAXIMUM SINGLE FLANGE IN
Style DesignatorWAVEGUIDE TO COAXIAL
Tubing Wall Construction StyleSEAMLESS SINGLE TUBING SEGMENT
Flange StyleCOVER TYPE SINGLE FLANGE
Adapter Length1.016 INCHES NOMINAL IN
Adapter Height1.312 INCHES NOMINAL IN
Surface TreatmentSILVER AND ENAMEL SINGLE FLANGE OUTSIDE SURFACES
Surface TreatmentSILVER AND ENAMEL SINGLE TUBING SEGMENT OUTSIDE SURFACES
Surface TreatmentSILVER SINGLE FLANGE INSIDE SURFACES
Waveguide Outside Height0.388 INCHES MINIMUM AND 0.394 INCHES MAXIMUM IN
Flange Connecting Hole Diameter0.144 INCHES MINIMUM AND 0.147 INCHES MAXIMUM SINGLE FLANGE SINGLE CONNECTION FACILITY IN
Waveguide Inside Height0.309 INCHES MINIMUM AND 0.314 INCHES MAXIMUM IN
Waveguide Inside Width0.620 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN
Flange Quantity1
Coaxial Connector Series DesignationSMA
Surface TreatmentSILVER AND RHODIUM SINGLE TUBING SEGMENT INSIDE SURFACES
Connector End DesignFEMALE
Waveguide Outside Width0.699 INCHES MINIMUM AND 0.705 INCHES MAXIMUM IN
Cross-Sectional Shape StyleINTERNAL, RECTANGULAR EXTERNAL, RECTANGULAR
Flange Connecting Facility and Quantity4 UNTHREADED HOLE(S) SINGLE FLANGE SINGLE CONNECTION FACILITY
Flange Inside Width0.705 INCHES MINIMUM AND 0.707 INCHES MAXIMUM SINGLE FLANGE IN
Flange Inside Height0.394 INCHES MINIMUM AND 0.396 INCHES MAXIMUM SINGLE FLANGE IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
3110-00-155-6849309SWI INTERCHANGEABLE
Bearing,ball,annular
Skf Usa Inc.
5365-00-507-326070717 INTERCHANGEABLE
Spacer,ring
Cummins Inc.
1680-00-677-4763460-9 INTERCHANGEABLE
Connector,gearbox
Mas Components & Coatings, Llc Dba Mas Components & Coatings Llc
6105-00-752-2124110A122 INTERCHANGEABLE
Motor,direct Current
Globe Motors, Inc. Dba Allient Dayton
5950-00-802-57634609 INTERCHANGEABLE
Coil,radio Frequency
Bourns Inc
5945-01-181-4237 INTERCHANGEABLE
Relay,thermal
4520-01-299-92854609 INTERCHANGEABLE
Heater,fuel Oil Ele
Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings)
6665-01-315-12784609 INTERCHANGEABLE
Detector,gas
Ghc Specialty Brands, Llc Dba Lab Safety Supply
4210-01-387-00154609 INTERCHANGEABLE
Bucket Wiring Harne
Sims Fiberglass Co
3040-01-436-58034609-545 INTERCHANGEABLE
Connecting Link,rigid
Tyee Aircraft Inc Div Tyee Aircraft
Cross-Reference Index
Part NumberManufacturer
WG/SMA (F) 12.4-18GHZ Aja L.l.c. Div 64157 (USA)
237585 Microtech Inc Dba Microtech Inc (USA)
4609 PRIMARY Narda Holdings, Inc. Dba Narda-Miteq Div Narda-Miteq (USA)
Related Parts
3110-00-155-6849INTERCHANGEABLE
BEARING,BALL,ANNULAR
309SWI
5365-00-507-3260INTERCHANGEABLE
SPACER,RING
70717
1680-00-677-4763INTERCHANGEABLE
CONNECTOR,GEARBOX
460-9
6105-00-752-2124INTERCHANGEABLE
MOTOR,DIRECT CURRENT
110A122
5950-00-802-5763INTERCHANGEABLE
COIL,RADIO FREQUENCY
4609
5945-01-181-4237INTERCHANGEABLE
RELAY,THERMAL
4520-01-299-9285INTERCHANGEABLE
HEATER,FUEL OIL ELE
4609
6665-01-315-1278INTERCHANGEABLE
DETECTOR,GAS
4609
4210-01-387-0015INTERCHANGEABLE
BUCKET WIRING HARNE
4609
3040-01-436-5803INTERCHANGEABLE
CONNECTING LINK,RIGID
4609-545
5120-01-562-0821INTERCHANGEABLE
SOCKET SET,SOCKET WRENCH
4609

Frequently Asked Questions

What is NSN 5985-01-025-3902?

NSN 5985-01-025-3902 is a Adapter,waveguide, manufactured by Narda Holdings, Inc. Dba Narda-Miteq Div Narda-Miteq, classified under FSC 5985 (No Item Name Available). Status: active.

What are the part numbers for NSN 5985-01-025-3902?

NSN 5985-01-025-3902 has 3 cross-referenced part numbers: WG/SMA (F) 12.4-18GHZ (Aja L.l.c. Div 64157), 237585 (Microtech Inc Dba Microtech Inc), 4609 (Narda Holdings, Inc. Dba Narda-Miteq Div Narda-Miteq).

What NSN replaces 5985-01-025-3902?

There are 11 known substitutes for 5985-01-025-3902: 3110-00-155-6849, 5365-00-507-3260, 1680-00-677-4763 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 4609?

Key specifications for 4609: Voltage Standing Wave Ratio: 1.25; Material: COPPER ALLOY SINGLE TUBING JACKET; Flange Outside Height: 1.296 INCHES MINIMUM AND 1.328 INCHES MAXIMUM SINGLE FLANGE IN; Flange Outside Width: 1.296 INCHES MINIMUM AND 1.328 INCHES MAXIMUM SINGLE FLANGE IN. 29 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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