PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

CG179AUWaveguide Assembly

Joint Army-Navy Specifications Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M · NSN 5985-00-263-0809 · FSC 5985 · No Item Name Available
Verified by PartsTable
NSN 5985-00-263-0809 — this item is cataloged by the U.S. Government under National Stock Number 5985-00-263-0809. Primary manufacturer part number: CG179AU.
Features
  • Waveguide Assembly — FSC 5985
  • Flange Depth: 0.438 INCHES NOMINAL ALL FLANGES IN
  • Flange Connecting Hole Diameter: 0.169 INCHES NOMINAL ALL FLANGES SINGLE CONNECTION FACILITY IN
  • Insertion Loss in Decibels: 0.15
  • Material: COPPER ALLOY SINGLE TUBING SEGMENT
  • Waveguide Inside Width: 0.900 INCHES NOMINAL IN
  • Tubing Wall Construction Style: CONVOLUTE SINGLE TUBING SEGMENT
  • Flange Connecting Facility and Quantity: 4 UNTHREADED HOLE(S) ALL FLANGES SINGLE CONNECTION FACILITY
Applications
  • Applications requiring Copper Alloy Single Tubing Segment construction
General Description

The Waveguide Assembly, cataloged under National Stock Number 5985-00-263-0809, 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 Joint Army-Navy Specifications Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 27 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. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5985-00-263-0809
Primary Part NumberCG179AU
Item NameWaveguide Assembly
FSC / FSG5985 / 59 — No Item Name Available
ManufacturerJoint Army-Navy Specifications Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
Flange Depth0.438 INCHES NOMINAL ALL FLANGES IN
Flange Connecting Hole Diameter0.169 INCHES NOMINAL ALL FLANGES SINGLE CONNECTION FACILITY IN
Insertion Loss in Decibels0.15
MaterialCOPPER ALLOY SINGLE TUBING SEGMENT
Waveguide Inside Width0.900 INCHES NOMINAL IN
Tubing Wall Construction StyleCONVOLUTE SINGLE TUBING SEGMENT
Flange Connecting Facility and Quantity4 UNTHREADED HOLE(S) ALL FLANGES SINGLE CONNECTION FACILITY
Flange Quantity2
Flange Outside Height1.625 INCHES NOMINAL ALL FLANGES IN
Waveguide Outside Width1.000 INCHES NOMINAL IN
Flange Outside Width1.625 INCHES NOMINAL ALL FLANGES IN
Waveguide Outside Height0.500 INCHES NOMINAL IN
MaterialRUBBER SYNTHETIC SINGLE TUBING JACKET
Voltage Standing Wave Ratio1.10
Flange Inside Height0.505 INCHES NOMINAL ALL FLANGES IN
FlexibilityFLEXIBLE SINGLE TUBING SEGMENT
Flange Inside Width1.063 INCHES NOMINAL ALL FLANGES IN
Surface TreatmentSILVER SINGLE TUBING SEGMENT INSIDE SURFACES
Precious MaterialSILVER
Precious Material and LocationTUBING AND FLANGE INTERIOR SILVER
Flange StyleCOVER TYPE ALL FLANGES
Style DesignatorSTRAIGHT TYPE
Cross-Sectional Shape StyleINTERNAL, RECTANGULAR EXTERNAL, RECTANGULAR
Waveguide Length1.500 FEET NOMINAL FT
Waveguide Inside Height0.400 INCHES NOMINAL IN
Surface TreatmentSILVER ALL FLANGE INSIDE SURFACES
MaterialCOPPER ALL FLANGE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5985-00-179-1098 INTERCHANGEABLE
Waveguide Assembly
5985-00-270-3136 INTERCHANGEABLE
Waveguide Assembly
5985-00-270-3164 INTERCHANGEABLE
Waveguide Assembly
5985-00-295-8945 INTERCHANGEABLE
Waveguide Assembly
5985-00-295-8946 INTERCHANGEABLE
Waveguide Assembly
5985-00-665-1144 INTERCHANGEABLE
Waveguide Assembly
Cross-Reference Index
Part NumberManufacturer
CG179AU Joint Army-Navy Specifications Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
JANW287 Joint Army-Navy Specifications Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
5985-00-179-1098INTERCHANGEABLE
WAVEGUIDE ASSEMBLY
5985-00-270-3136INTERCHANGEABLE
WAVEGUIDE ASSEMBLY
5985-00-270-3164INTERCHANGEABLE
WAVEGUIDE ASSEMBLY
5985-00-295-8945INTERCHANGEABLE
WAVEGUIDE ASSEMBLY
5985-00-295-8946INTERCHANGEABLE
WAVEGUIDE ASSEMBLY
5985-00-665-1144INTERCHANGEABLE
WAVEGUIDE ASSEMBLY

Frequently Asked Questions

What is NSN 5985-00-263-0809?

NSN 5985-00-263-0809 is a Waveguide Assembly, manufactured by Joint Army-Navy Specifications Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 5985 (No Item Name Available). Status: active.

What are the part numbers for NSN 5985-00-263-0809?

NSN 5985-00-263-0809 has 2 cross-referenced part numbers: CG179AU (Joint Army-Navy Specifications Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), JANW287 (Joint Army-Navy Specifications Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 5985-00-263-0809?

There are 6 known substitutes for 5985-00-263-0809: 5985-00-179-1098, 5985-00-270-3136, 5985-00-270-3164 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of CG179AU?

Key specifications for CG179AU: Flange Depth: 0.438 INCHES NOMINAL ALL FLANGES IN; Flange Connecting Hole Diameter: 0.169 INCHES NOMINAL ALL FLANGES SINGLE CONNECTION FACILITY IN; Insertion Loss in Decibels: 0.15; Material: COPPER ALLOY SINGLE TUBING SEGMENT. 27 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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