PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2766Adapter,waveguide

Mcs Corporation · NSN 5985-00-736-4649 · FSC 5985 · No Item Name Available
Verified by PartsTable
NSN 5985-00-736-4649 — this item is cataloged by the U.S. Government under National Stock Number 5985-00-736-4649. Primary manufacturer part number: 2766.
Features
  • Adapter,waveguide — FSC 5985
  • Voltage Standing Wave Ratio: 1.20
  • Cross-Sectional Shape Style: INTERNAL, RECTANGULAR EXTERNAL, RECTANGULAR
  • Flange Connecting Facility and Quantity: 4 UNTHREADED HOLE(S) SINGLE FLANGE ALL CONNECTION FACILITIES
  • Surface Treatment: ENAMEL SINGLE TUBING SEGMENT AND FLANGE ALL SURFACES
  • Flange Connecting Hole Diameter: 0.160 INCHES NOMINAL SINGLE FLANGE ALL CONNECTION FACILITIES IN
  • Connector End Design: FEMALE
  • Tubing Wall Construction Style: SEAMLESS SINGLE TUBING SEGMENT
Applications
  • Applications requiring Aluminum Alloy Single Tubing Segment construction
General Description

The Adapter,waveguide, cataloged under National Stock Number 5985-00-736-4649, 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 Mcs Corporation. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references 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
NSN5985-00-736-4649
Primary Part Number2766
Item NameAdapter,waveguide
FSC / FSG5985 / 59 — No Item Name Available
ManufacturerMcs Corporation
StatusACTIVE
Voltage Standing Wave Ratio1.20
Cross-Sectional Shape StyleINTERNAL, RECTANGULAR EXTERNAL, RECTANGULAR
Flange Connecting Facility and Quantity4 UNTHREADED HOLE(S) SINGLE FLANGE ALL CONNECTION FACILITIES
Surface TreatmentENAMEL SINGLE TUBING SEGMENT AND FLANGE ALL SURFACES
Flange Connecting Hole Diameter0.160 INCHES NOMINAL SINGLE FLANGE ALL CONNECTION FACILITIES IN
Connector End DesignFEMALE
Tubing Wall Construction StyleSEAMLESS SINGLE TUBING SEGMENT
Flange Quantity1
Adapter Length1.560 INCHES NOMINAL IN
Style DesignatorWAVEGUIDE TO COAXIAL
Flange StyleCOVER TYPE SINGLE FLANGE
MaterialALUMINUM ALLOY SINGLE TUBING SEGMENT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5325-00-290-3777 INTERCHANGEABLE
Grommet,nonmetallic
3120-00-394-6469 INTERCHANGEABLE
Bearing,sleeve
5950-00-399-7545SM-A-121765G2 INTERCHANGEABLE
Coil,radio Frequency
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5940-00-852-15032766 INTERCHANGEABLE
Terminal,lug
Halsit Holdings Llc Div Halsit Holdings, Llc Dba Abbatron
3830-00-886-10303002766-8 INTERCHANGEABLE
Breather Assembly
New Holland Construction
5910-00-950-05212766 INTERCHANGEABLE
Capacitor,fixed,electrolytic
Ballantine Laboratories Inc
5305-01-127-12972766 INTERCHANGEABLE
Screw
Allard Nazarian Group, Inc. Dba Granite State Manufacturing
6150-01-184-73672766 INTERCHANGEABLE
Lead,electrical
Avo Multi-Amp Corp
3040-01-313-46852766 INTERCHANGEABLE
Cam,control
Panish Marine Systems, Llc
4110-01-344-72932766 INTERCHANGEABLE
Refrigeration Unit,mechanical
Meggitt Defense Systems, Inc. Dba Meggitt Defense Systems Inc
Cross-Reference Index
Part NumberManufacturer
2766 Mcs Corporation (USA)
X-9513 Mcs Corporation (USA)
Related Parts
5325-00-290-3777INTERCHANGEABLE
GROMMET,NONMETALLIC
3120-00-394-6469INTERCHANGEABLE
BEARING,SLEEVE
5950-00-399-7545INTERCHANGEABLE
COIL,RADIO FREQUENCY
SM-A-121765G2
5940-00-852-1503INTERCHANGEABLE
TERMINAL,LUG
2766
3830-00-886-1030INTERCHANGEABLE
BREATHER ASSEMBLY
3002766-8
5910-00-950-0521INTERCHANGEABLE
CAPACITOR,FIXED,ELECTROLYTIC
2766
5305-01-127-1297INTERCHANGEABLE
SCREW
2766
6150-01-184-7367INTERCHANGEABLE
LEAD,ELECTRICAL
2766
3040-01-313-4685INTERCHANGEABLE
CAM,CONTROL
2766
4110-01-344-7293INTERCHANGEABLE
REFRIGERATION UNIT,MECHANICAL
2766
5340-01-458-2899INTERCHANGEABLE
PLUG,VENT
2766
3040-01-596-2050INTERCHANGEABLE
CAM,CONTROL
2766

Frequently Asked Questions

What is NSN 5985-00-736-4649?

NSN 5985-00-736-4649 is a Adapter,waveguide, manufactured by Mcs Corporation, classified under FSC 5985 (No Item Name Available). Status: active.

What are the part numbers for NSN 5985-00-736-4649?

NSN 5985-00-736-4649 has 2 cross-referenced part numbers: 2766 (Mcs Corporation), X-9513 (Mcs Corporation).

What NSN replaces 5985-00-736-4649?

There are 12 known substitutes for 5985-00-736-4649: 5325-00-290-3777, 3120-00-394-6469, 5950-00-399-7545 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 2766?

Key specifications for 2766: Voltage Standing Wave Ratio: 1.20; Cross-Sectional Shape Style: INTERNAL, RECTANGULAR EXTERNAL, RECTANGULAR; Flange Connecting Facility and Quantity: 4 UNTHREADED HOLE(S) SINGLE FLANGE ALL CONNECTION FACILITIES; Surface Treatment: ENAMEL SINGLE TUBING SEGMENT AND FLANGE ALL SURFACES. 12 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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