PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2901404-1Waveguide Assembly

Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier · NSN 5985-01-274-1453 · FSC 5985 · No Item Name Available
Verified by PartsTable
NSN 5985-01-274-1453 — this item is cataloged by the U.S. Government under National Stock Number 5985-01-274-1453. Primary manufacturer part number: 2901404-1.
Features
  • Waveguide Assembly — FSC 5985
  • Waveguide Offset Distance: 1.560 INCHES NOMINAL IN
  • Tubing Wall Construction Style: SEAMLESS ALL TUBING SEGMENT
  • Flexibility: RIGID ALL TUBING SEGMENT
  • Flange Outside Width: 3.000 INCHES NOMINAL ALL FLANGES IN
  • Material: ALUMINUM ALLOY ALL TUBING SEGMENT AND FLANGE
  • Flange Quantity: 2
  • Flange Outside Height: 3.600 INCHES NOMINAL ALL FLANGES IN
Applications
  • Applications requiring Aluminum Alloy All Tubing Segment and Flange construction
General Description

The Waveguide Assembly, cataloged under National Stock Number 5985-01-274-1453, 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 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5985-01-274-1453
Primary Part Number2901404-1
Item NameWaveguide Assembly
FSC / FSG5985 / 59 — No Item Name Available
ManufacturerNavair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
StatusACTIVE
Waveguide Offset Distance1.560 INCHES NOMINAL IN
Tubing Wall Construction StyleSEAMLESS ALL TUBING SEGMENT
FlexibilityRIGID ALL TUBING SEGMENT
Flange Outside Width3.000 INCHES NOMINAL ALL FLANGES IN
MaterialALUMINUM ALLOY ALL TUBING SEGMENT AND FLANGE
Flange Quantity2
Flange Outside Height3.600 INCHES NOMINAL ALL FLANGES IN
Flange Connecting Hole Diameter0.281 INCHES NOMINAL ALL FLANGES ALL CONNECTION FACILITIES IN
Waveguide Longer Offset Distance4.560 INCHES NOMINAL IN
FSC Application DataANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT
Waveguide Inside Height0.397 INCHES MINIMUM AND 0.403 INCHES MAXIMUM IN
Cross-Sectional Shape StyleINTERNAL, RECTANGULAR EXTERNAL, RECTANGULAR
Style DesignatorCORNER TYPE
Waveguide Inside Width2.837 INCHES MINIMUM AND 2.843 INCHES MAXIMUM IN
Flange Depth0.280 INCHES MINIMUM AND 0.340 INCHES MAXIMUM ALL FLANGES IN
Flange Connecting Facility and Quantity7 UNTHREADED HOLE(S) ALL FLANGES ALL CONNECTION FACILITIES
Flange StyleCONTACT TYPE ALL FLANGES
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
2910-00-125-5600122-0325 INTERCHANGEABLE
Filter Element,fluid
Cummins Power Generation Inc.
2815-00-845-0253302379500 INTERCHANGEABLE
Flywheel,engine
Cummins Inc.
5340-01-012-469311745629-1 INTERCHANGEABLE
Boot,dust and Moisture Seal
Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate
5330-01-290-4190E-O-I-081653-20-01-1-SPG-VCR8X INTERCHANGEABLE
Gasket
Parker-Hannifin Corporation Dba Parker Hannifin Advanced Products Co Div Composite Sealing Systems Division
4730-01-542-323855-2181 INTERCHANGEABLE
Tee,tube
Thermo King Corp
2910-01-593-88022656F087 INTERCHANGEABLE
Filter,fluid
Perkins Engines Inc
4730-01-682-0782552181 INTERCHANGEABLE
Reducer,pipe
Tyco Fire Products Lp
Cross-Reference Index
Part NumberManufacturer
2901404-1 PRIMARY Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
122325 Litton Systems Inc Airtron Div (USA)
122325 Frontgrade Technologies Inc. (USA)
55218-1 Cobham Advanced Electronic Solutions Inc. (USA)
Related Parts
2910-00-125-5600INTERCHANGEABLE
FILTER ELEMENT,FLUID
122-0325
2815-00-845-0253INTERCHANGEABLE
FLYWHEEL,ENGINE
302379500
5340-01-012-4693INTERCHANGEABLE
BOOT,DUST AND MOISTURE SEAL
11745629-1
5330-01-290-4190INTERCHANGEABLE
GASKET
E-O-I-081653-20-01-1-SPG-VCR8X
4730-01-542-3238INTERCHANGEABLE
TEE,TUBE
55-2181
2910-01-593-8802INTERCHANGEABLE
FILTER,FLUID
2656F087
4730-01-682-0782INTERCHANGEABLE
REDUCER,PIPE
552181

Frequently Asked Questions

What is NSN 5985-01-274-1453?

NSN 5985-01-274-1453 is a Waveguide Assembly, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 5985 (No Item Name Available). Status: active.

What are the part numbers for NSN 5985-01-274-1453?

NSN 5985-01-274-1453 has 4 cross-referenced part numbers: 2901404-1 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 122325 (Litton Systems Inc Airtron Div), 122325 (Frontgrade Technologies Inc.), 55218-1 (Cobham Advanced Electronic Solutions Inc.).

What NSN replaces 5985-01-274-1453?

There are 7 known substitutes for 5985-01-274-1453: 2910-00-125-5600, 2815-00-845-0253, 5340-01-012-4693 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 2901404-1?

Key specifications for 2901404-1: Waveguide Offset Distance: 1.560 INCHES NOMINAL IN; Tubing Wall Construction Style: SEAMLESS ALL TUBING SEGMENT; Flexibility: RIGID ALL TUBING SEGMENT; Flange Outside Width: 3.000 INCHES NOMINAL ALL FLANGES IN. 17 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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