PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

621015Waveguide Assembly

Guide Microwave Inc · NSN 5985-00-141-5971 · FSC 5985 · No Item Name Available
Verified by PartsTable
NSN 5985-00-141-5971 — this item is cataloged by the U.S. Government under National Stock Number 5985-00-141-5971. Primary manufacturer part number: 621015.
Features
  • Waveguide Assembly — FSC 5985
  • Waveguide Inside Height: 0.3085 INCHES MINIMUM AND 0.3135 INCHES MAXIMUM IN
  • Waveguide Longer Offset Distance: 6.000 INCHES NOMINAL IN
  • Thread Direction: RIGHT-HAND FIRST FLANGE ALL CONNECTION FACILITIES
  • Flange Inside Height: 0.309 INCHES MINIMUM AND 0.313 INCHES MAXIMUM FIRST FLANGE IN
  • Waveguide Outside Width: 0.699 INCHES MINIMUM AND 0.705 INCHES MAXIMUM IN
  • Flange Inside Width: 0.705 INCHES MINIMUM AND 0.707 INCHES MAXIMUM SECOND FLANGE IN
  • Flange Depth: 0.298 INCHES MINIMUM AND 0.328 INCHES MINIMUM SECOND FLANGE IN
Applications
  • Applications requiring Copper Alloy All Flange construction
General Description

The Waveguide Assembly, cataloged under National Stock Number 5985-00-141-5971, 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 Guide Microwave 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
NSN5985-00-141-5971
Primary Part Number621015
Item NameWaveguide Assembly
FSC / FSG5985 / 59 — No Item Name Available
ManufacturerGuide Microwave Inc
StatusACTIVE
Waveguide Inside Height0.3085 INCHES MINIMUM AND 0.3135 INCHES MAXIMUM IN
Waveguide Longer Offset Distance6.000 INCHES NOMINAL IN
Thread DirectionRIGHT-HAND FIRST FLANGE ALL CONNECTION FACILITIES
Flange Inside Height0.309 INCHES MINIMUM AND 0.313 INCHES MAXIMUM FIRST FLANGE IN
Waveguide Outside Width0.699 INCHES MINIMUM AND 0.705 INCHES MAXIMUM IN
Flange Inside Width0.705 INCHES MINIMUM AND 0.707 INCHES MAXIMUM SECOND FLANGE IN
Flange Depth0.298 INCHES MINIMUM AND 0.328 INCHES MINIMUM SECOND FLANGE IN
Flange Outside Height1.298 INCHES MINIMUM AND 1.328 INCHES MAXIMUM SECOND FLANGE IN
Flange Inside Width0.620 INCHES MINIMUM AND 0.624 INCHES MAXIMUM FIRST FLANGE IN
Flange Depth0.360 INCHES MINIMUM AND 0.390 INCHES MAXIMUM FIRST FLANGE IN
Waveguide Inside Width0.6195 INCHES MINIMUM AND 0.6245 INCHES MAXIMUM IN
Precious MaterialSILVER
FlexibilityRIGID SINGLE TUBING SEGMENT
FSC Application DataANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT
Flange StyleCHOKE TYPE FIRST FLANGE
Flange Connecting Facility and Quantity4 UNTHREADED HOLE(S) SECOND FLANGE ALL CONNECTION FACILITIES
Surface TreatmentSILVER ALL FLANGE INSIDE SURFACES
Precious Material and LocationFLANGE SURFACE SILVER
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) FIRST FLANGE ALL CONNECTION FACILITIES
Surface TreatmentENAMEL ALL FLANGE OUTSIDE SURFACES
Waveguide Offset Distance2.750 INCHES NOMINAL IN
Style DesignatorBEND TYPE
MaterialCOPPER ALLOY ALL FLANGE
Flange Outside Width1.298 INCHES MINIMUM AND 1.328 INCHES MAXIMUM SECOND FLANGE IN
Flange Inside Height0.394 INCHES MINIMUM AND 0.396 INCHES MAXIMUM SECOND FLANGE IN
Thread Quantity Per Inch32 FIRST FLANGE ALL CONNECTION FACILITIES
Waveguide Outside Height0.388 INCHES MINIMUM AND 0.394 INCHES MAXIMUM IN
Nominal Thread Size0.138 INCHES FIRST FLANGE ALL CONNECTION FACILITIES IN
Bend Angle in Deg90.0 SINGLE BEND E-PLANE
Flange Quantity2
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5920-00-131-990928057-1R5 INTERCHANGEABLE
Fuse,cartridge
Naval Ship Systems Command
5930-00-929-168662101-5 INTERCHANGEABLE
Switch,rotary
Magnasync/moviola Corporation Dba Magnasync/moviola Corp
Cross-Reference Index
Part NumberManufacturer
621015 Guide Microwave Inc (USA)
EEP1661-121 Lockheed Martin Corp (USA)
Related Parts
5920-00-131-9909INTERCHANGEABLE
FUSE,CARTRIDGE
28057-1R5
5930-00-929-1686INTERCHANGEABLE
SWITCH,ROTARY
62101-5

Frequently Asked Questions

What is NSN 5985-00-141-5971?

NSN 5985-00-141-5971 is a Waveguide Assembly, manufactured by Guide Microwave Inc, classified under FSC 5985 (No Item Name Available). Status: active.

What are the part numbers for NSN 5985-00-141-5971?

NSN 5985-00-141-5971 has 2 cross-referenced part numbers: 621015 (Guide Microwave Inc), EEP1661-121 (Lockheed Martin Corp).

What NSN replaces 5985-00-141-5971?

There are 2 known substitutes for 5985-00-141-5971: 5920-00-131-9909, 5930-00-929-1686. Verify interchangeability with system specifications before substitution.

What are the specifications of 621015?

Key specifications for 621015: Waveguide Inside Height: 0.3085 INCHES MINIMUM AND 0.3135 INCHES MAXIMUM IN; Waveguide Longer Offset Distance: 6.000 INCHES NOMINAL IN; Thread Direction: RIGHT-HAND FIRST FLANGE ALL CONNECTION FACILITIES; Flange Inside Height: 0.309 INCHES MINIMUM AND 0.313 INCHES MAXIMUM FIRST FLANGE IN. 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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