PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

052565Waveguide Assembly

L3 Technologies, Inc. Div L3 Keo · NSN 5985-01-033-6989 · FSC 5985 · No Item Name Available
Verified by PartsTable
NSN 5985-01-033-6989 — this item is cataloged by the U.S. Government under National Stock Number 5985-01-033-6989. Primary manufacturer part number: 052565.
Features
  • Waveguide Assembly — FSC 5985
  • Style Designator: BEND TYPE
  • Waveguide Outside Height: 0.218 INCHES MINIMUM AND 0.222 INCHES MAXIMUM IN
  • Flange Style: COVER TYPE ALL FLANGES
  • Flange Connecting Facility and Quantity: 4 UNTHREADED HOLE(S) ALL FLANGES ALL CONNECTION FACILITIES
  • Waveguide Longer Offset Distance: 4.490 INCHES MINIMUM AND 4.510 INCHES MAXIMUM IN
  • Flange Outside Width: 0.745 INCHES MINIMUM AND 0.755 INCHES MAXIMUM ALL FLANGES IN
  • Waveguide Offset Distance: 0.458 INCHES MINIMUM AND 0.478 INCHES MAXIMUM IN
Applications
  • Applications requiring Copper Alloy All Tubing Segment and Flange construction
General Description

The Waveguide Assembly, cataloged under National Stock Number 5985-01-033-6989, 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 L3 Technologies, Inc. Div L3 Keo. Government technical data includes 23 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5985-01-033-6989
Primary Part Number052565
Item NameWaveguide Assembly
FSC / FSG5985 / 59 — No Item Name Available
ManufacturerL3 Technologies, Inc. Div L3 Keo
StatusACTIVE
Style DesignatorBEND TYPE
Waveguide Outside Height0.218 INCHES MINIMUM AND 0.222 INCHES MAXIMUM IN
Flange StyleCOVER TYPE ALL FLANGES
Flange Connecting Facility and Quantity4 UNTHREADED HOLE(S) ALL FLANGES ALL CONNECTION FACILITIES
Waveguide Longer Offset Distance4.490 INCHES MINIMUM AND 4.510 INCHES MAXIMUM IN
Flange Outside Width0.745 INCHES MINIMUM AND 0.755 INCHES MAXIMUM ALL FLANGES IN
Waveguide Offset Distance0.458 INCHES MINIMUM AND 0.478 INCHES MAXIMUM IN
Waveguide Inside Height0.1385 INCHES MINIMUM AND 0.1415 INCHES MAXIMUM IN
Flange Inside Height0.222 INCHES MINIMUM ALL FLANGES IN
FlexibilityFLEXIBLE SINGLE TUBING SEGMENT
Flange Quantity2
FSC Application DataANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT
Waveguide Outside Width0.358 INCHES MINIMUM AND 0.362 INCHES MAXIMUM IN
Flange Connecting Hole Diameter0.116 INCHES MINIMUM ALL FLANGES ALL CONNECTION FACILITIES IN
Flange Inside Width0.362 INCHES MINIMUM ALL FLANGES IN
Waveguide Inside Width0.2785 INCHES MINIMUM AND 0.2815 INCHES MAXIMUM IN
Surface TreatmentLACQUER SINGLE TUBING SEGMENT INSIDE SURFACES
Flange Depth0.182 INCHES MINIMUM AND 0.192 INCHES MAXIMUM ALL FLANGES IN
MaterialCOPPER ALLOY ALL TUBING SEGMENT AND FLANGE
Surface TreatmentPLASTIC VINYL SINGLE TUBING SEGMENT OUTSIDE SURFACES
Flange Outside Height0.745 INCHES MINIMUM AND 0.755 INCHES MAXIMUM ALL FLANGES IN
Tubing Wall Construction StyleCONVOLUTE SINGLE TUBING SEGMENT
Cross-Sectional Shape StyleINTERNAL, RECTANGULAR EXTERNAL, RECTANGULAR
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5905-00-104-8353 INTERCHANGEABLE
Resistor,fixed,composition
4730-00-883-98283008T41P01 INTERCHANGEABLE
Strainer Element,sediment
General Electric Company Dba Ge Aerospace
Cross-Reference Index
Part NumberManufacturer
885C052565 Northrop Grumman Systems Corporation (USA)
052565 PRIMARY L3 Technologies, Inc. Div L3 Keo (USA)
885C052565 L3 Technologies, Inc. Div L3 Keo (USA)
885F052061 ITEM 52 L3 Technologies, Inc. Div L3 Keo (USA)
Related Parts
5905-00-104-8353INTERCHANGEABLE
RESISTOR,FIXED,COMPOSITION
4730-00-883-9828INTERCHANGEABLE
STRAINER ELEMENT,SEDIMENT
3008T41P01

Frequently Asked Questions

What is NSN 5985-01-033-6989?

NSN 5985-01-033-6989 is a Waveguide Assembly, manufactured by L3 Technologies, Inc. Div L3 Keo, classified under FSC 5985 (No Item Name Available). Status: active.

What are the part numbers for NSN 5985-01-033-6989?

NSN 5985-01-033-6989 has 4 cross-referenced part numbers: 885C052565 (Northrop Grumman Systems Corporation), 052565 (L3 Technologies, Inc. Div L3 Keo), 885C052565 (L3 Technologies, Inc. Div L3 Keo), 885F052061 ITEM 52 (L3 Technologies, Inc. Div L3 Keo).

What NSN replaces 5985-01-033-6989?

There are 2 known substitutes for 5985-01-033-6989: 5905-00-104-8353, 4730-00-883-9828. Verify interchangeability with system specifications before substitution.

What are the specifications of 052565?

Key specifications for 052565: Style Designator: BEND TYPE; Waveguide Outside Height: 0.218 INCHES MINIMUM AND 0.222 INCHES MAXIMUM IN; Flange Style: COVER TYPE ALL FLANGES; Flange Connecting Facility and Quantity: 4 UNTHREADED HOLE(S) ALL FLANGES ALL CONNECTION FACILITIES. 23 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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