PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

675-21136-651Waveguide Assembly

The Boeing Company Div Legacy Wichita · NSN 5985-01-234-0603 · FSC 5985 · No Item Name Available
Verified by PartsTable
NSN 5985-01-234-0603 — this item is cataloged by the U.S. Government under National Stock Number 5985-01-234-0603. Primary manufacturer part number: 675-21136-651.
Features
  • Waveguide Assembly — FSC 5985
  • Flange Connecting Facility and Quantity: 4 UNTHREADED HOLE(S) ALL FLANGES ALL CONNECTION FACILITIES
  • Cross-Sectional Shape Style: INTERNAL, RECTANGULAR DOUBLE RIDGED EXTERNAL, RECTANGULAR
  • Flange Quantity: 2
  • Flange Outside Height: 1.375 INCHES NOMINAL ALL FLANGES IN
  • Flange Depth: 0.250 INCHES NOMINAL ALL FLANGES IN
  • Waveguide Length: 10.500 INCHES NOMINAL IN
  • Style Designator: STRAIGHT TYPE
Applications
  • Applications requiring Copper Alloy Single Tubing Segment construction
General Description

The Waveguide Assembly, cataloged under National Stock Number 5985-01-234-0603, 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 The Boeing Company Div Legacy Wichita. Government technical data includes 23 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. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5985-01-234-0603
Primary Part Number675-21136-651
Item NameWaveguide Assembly
FSC / FSG5985 / 59 — No Item Name Available
ManufacturerThe Boeing Company Div Legacy Wichita
StatusACTIVE
Flange Connecting Facility and Quantity4 UNTHREADED HOLE(S) ALL FLANGES ALL CONNECTION FACILITIES
Cross-Sectional Shape StyleINTERNAL, RECTANGULAR DOUBLE RIDGED EXTERNAL, RECTANGULAR
Flange Quantity2
Flange Outside Height1.375 INCHES NOMINAL ALL FLANGES IN
Flange Depth0.250 INCHES NOMINAL ALL FLANGES IN
Waveguide Length10.500 INCHES NOMINAL IN
Style DesignatorSTRAIGHT TYPE
Waveguide Outside Height0.421 INCHES NOMINAL IN
Insertion Loss in Decibels0.30
FSC Application DataANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT
Flange StyleCONTACT, DOUBLE RIDGE TYPE ALL FLANGES
Flange Inside Height0.321 INCHES NOMINAL ALL FLANGES IN
Waveguide Outside Width0.730 INCHES NOMINAL IN
Waveguide Inside Width0.720 INCHES NOMINAL IN
Waveguide Inside Height0.321 INCHES NOMINAL IN
Flange Outside Width1.375 INCHES NOMINAL ALL FLANGES IN
MaterialCOPPER ALLOY SINGLE TUBING SEGMENT
Voltage Standing Wave Ratio1.40
Tubing Wall Construction StyleSEAMLESS SINGLE TUBING SEGMENT
FlexibilityFLEXIBLE SINGLE TUBING SEGMENT
Flange Inside Width0.720 INCHES NOMINAL ALL FLANGES IN
Flange Connecting Hole Diameter0.147 INCHES MINIMUM AND 0.147 INCHES MAXIMUM ALL FLANGES ALL CONNECTION FACILITIES IN
MaterialALUMINUM ALLOY ALL FLANGE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5310-00-012-506347356160B3 INTERCHANGEABLE
Nut,plain,castellated,hexagon
Aeroil Products Co Inc
5365-00-177-2963125063 INTERCHANGEABLE
Spacer,sleeve
Curtiss-Wright Electro-Mechanical Corporation Div Epd
2920-00-362-3820 INTERCHANGEABLE
Cap,ignition Distribution
Cross-Reference Index
Part NumberManufacturer
675-21136-651 PRIMARY The Boeing Company Div Legacy Wichita (USA)
125063 Litton Systems Inc Airtron Div (USA)
TDFT10035 Microwave Engineering Corporation (USA)
Related Parts
5310-00-012-5063INTERCHANGEABLE
NUT,PLAIN,CASTELLATED,HEXAGON
47356160B3
5365-00-177-2963INTERCHANGEABLE
SPACER,SLEEVE
125063
2920-00-362-3820INTERCHANGEABLE
CAP,IGNITION DISTRIBUTION

Frequently Asked Questions

What is NSN 5985-01-234-0603?

NSN 5985-01-234-0603 is a Waveguide Assembly, manufactured by The Boeing Company Div Legacy Wichita, classified under FSC 5985 (No Item Name Available). Status: active.

What are the part numbers for NSN 5985-01-234-0603?

NSN 5985-01-234-0603 has 3 cross-referenced part numbers: 675-21136-651 (The Boeing Company Div Legacy Wichita), 125063 (Litton Systems Inc Airtron Div), TDFT10035 (Microwave Engineering Corporation).

What NSN replaces 5985-01-234-0603?

There are 3 known substitutes for 5985-01-234-0603: 5310-00-012-5063, 5365-00-177-2963, 2920-00-362-3820. Verify interchangeability with system specifications before substitution.

What are the specifications of 675-21136-651?

Key specifications for 675-21136-651: Flange Connecting Facility and Quantity: 4 UNTHREADED HOLE(S) ALL FLANGES ALL CONNECTION FACILITIES; Cross-Sectional Shape Style: INTERNAL, RECTANGULAR DOUBLE RIDGED EXTERNAL, RECTANGULAR; Flange Quantity: 2; Flange Outside Height: 1.375 INCHES NOMINAL ALL FLANGES IN. 24 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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