PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MCKWRN0284BANDSWaveguide Assembly

Microtech Inc Dba Microtech Inc · NSN 5985-00-997-9221 · FSC 5985 · No Item Name Available
Verified by PartsTable
NSN 5985-00-997-9221 — this item is cataloged by the U.S. Government under National Stock Number 5985-00-997-9221. Primary manufacturer part number: MCKWRN0284BANDS.
Features
  • Waveguide Assembly — FSC 5985
  • Insertion Loss in Decibels: 0.030.03
  • Tubing Wall Construction Style: CONVOLUTE SINGLE TUBING SEGMENTCONVOLUTE SINGLE TUBING SEGMENT
  • Waveguide Inside Width: 2.840 INCHES NOMINAL2.840 INCHES NOMINAL IN
  • Surface Treatment: CADMIUM SECOND FLANGE OUTSIDE SURFACES
  • Precious Material: SILVER
  • Style Designator: BEND TYPE
  • Flange Inside Width: 2.840 INCHES NOMINAL SECOND FLANGE2.840 INCHES NOMINAL SECOND FLANGE IN
Applications
  • Applications requiring Copper Alloy Single Tubing Segment and Flange construction
General Description

The Waveguide Assembly, cataloged under National Stock Number 5985-00-997-9221, 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 Microtech Inc Dba Microtech Inc. Government technical data includes 30 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 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
NSN5985-00-997-9221
Primary Part NumberMCKWRN0284BANDS
Item NameWaveguide Assembly
FSC / FSG5985 / 59 — No Item Name Available
ManufacturerMicrotech Inc Dba Microtech Inc
StatusACTIVE
Insertion Loss in Decibels0.030.03
Tubing Wall Construction StyleCONVOLUTE SINGLE TUBING SEGMENTCONVOLUTE SINGLE TUBING SEGMENT
Waveguide Inside Width2.840 INCHES NOMINAL2.840 INCHES NOMINAL IN
Surface TreatmentCADMIUM SECOND FLANGE OUTSIDE SURFACES
Precious MaterialSILVER
Style DesignatorBEND TYPE
Flange Inside Width2.840 INCHES NOMINAL SECOND FLANGE2.840 INCHES NOMINAL SECOND FLANGE IN
Waveguide Offset Distance3.940 INCHES NOMINAL3.940 INCHES NOMINAL IN
FSC Application DataTRAINER RADAR
Flange StyleCHOKE TYPE SECOND FLANGECHOKE TYPE SECOND FLANGE
Surface TreatmentSILVER SINGLE TUBING SEGMENT AND FLANGE INSIDE SURFACES
Waveguide Inside Height1.340 INCHES NOMINAL1.340 INCHES NOMINAL IN
MaterialCOPPER ALLOY SINGLE TUBING SEGMENT AND FLANGE
Thread DirectionRIGHT-HAND SECOND FLANGE SINGLE CONNECTION FACILITYRIGHT-HAND SECOND FLANGE SINGLE CONNECTION FACILITY
Flange Quantity22
Flange Depth0.750 INCHES NOMINAL FIRST FLANGE0.750 INCHES NOMINAL FIRST FLANGE IN
Nominal Thread Size0.250 INCHES SECOND FLANGE SINGLE CONNECTION FACILITY0.250 INCHES SECOND FLANGE SINGLE CONNECTION FACILITY IN
Waveguide Outside Height1.500 INCHES NOMINAL1.500 INCHES NOMINAL IN
Flange Inside Width3.002 INCHES NOMINAL FIRST FLANGE3.002 INCHES NOMINAL FIRST FLANGE IN
Flange Outside Diameter5.313 INCHES NOMINAL FIRST FLANGE5.313 INCHES NOMINAL FIRST FLANGE IN
Flange Connecting Facility and Quantity8 UNTHREADED HOLE(S) FIRST FLANGE SINGLE CONNECTION FACILITY8 UNTHREADED HOLE(S) FIRST FLANGE SINGLE CONNECTION FACILITY
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SECOND FLANGE SINGLE CONNECTION FACILITY
Waveguide Outside Width3.000 INCHES NOMINAL3.000 INCHES NOMINAL IN
Flange Inside Height1.340 INCHES NOMINAL SECOND FLANGE1.340 INCHES NOMINAL SECOND FLANGE IN
Voltage Standing Wave Ratio1.101.10
Flange Inside Height1.502 INCHES NOMINAL FIRST FLANGE1.502 INCHES NOMINAL FIRST FLANGE IN
Flange StyleCOVER TYPE FIRST FLANGECOVER TYPE FIRST FLANGE
Thread Class2B SECOND FLANGE SINGLE CONNECTION FACILITY2B SECOND FLANGE SINGLE CONNECTION FACILITY
Flange Depth1.250 INCHES NOMINAL SECOND FLANGE1.250 INCHES NOMINAL SECOND FLANGE IN
Flange Outside Diameter5.313 INCHES NOMINAL SECOND FLANGE5.313 INCHES NOMINAL SECOND FLANGE IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
4720-01-256-9699 INTERCHANGEABLE
Hose Assembly,nonmetallic
5315-01-390-5922124921 INTERCHANGEABLE
Pin,straight,headless
Cummins Inc.
Cross-Reference Index
Part NumberManufacturer
12492-1 Edo (USA)
MCKWRN0284BANDS PRIMARY Microtech Inc Dba Microtech Inc (USA)
Related Parts
4720-01-256-9699INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
5315-01-390-5922INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS
124921

Frequently Asked Questions

What is NSN 5985-00-997-9221?

NSN 5985-00-997-9221 is a Waveguide Assembly, manufactured by Microtech Inc Dba Microtech Inc, classified under FSC 5985 (No Item Name Available). Status: active.

What are the part numbers for NSN 5985-00-997-9221?

NSN 5985-00-997-9221 has 2 cross-referenced part numbers: 12492-1 (Edo), MCKWRN0284BANDS (Microtech Inc Dba Microtech Inc).

What NSN replaces 5985-00-997-9221?

There are 2 known substitutes for 5985-00-997-9221: 4720-01-256-9699, 5315-01-390-5922. Verify interchangeability with system specifications before substitution.

What are the specifications of MCKWRN0284BANDS?

Key specifications for MCKWRN0284BANDS: Insertion Loss in Decibels: 0.030.03; Tubing Wall Construction Style: CONVOLUTE SINGLE TUBING SEGMENTCONVOLUTE SINGLE TUBING SEGMENT; Waveguide Inside Width: 2.840 INCHES NOMINAL2.840 INCHES NOMINAL IN; Surface Treatment: CADMIUM SECOND FLANGE OUTSIDE SURFACES. 30 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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