PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

16VA027-1Adapter,waveguide

Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company · NSN 5985-01-090-3578 · FSC 5985 · No Item Name Available
Verified by PartsTable
NSN 5985-01-090-3578 — this item is cataloged by the U.S. Government under National Stock Number 5985-01-090-3578. Primary manufacturer part number: 16VA027-1.
Features
  • Adapter,waveguide — FSC 5985
  • Flange Style: CONTACT TYPE SINGLE FLANGE
  • Flange Outside Width: 2.590 INCHES MINIMUM AND 2.650 INCHES MAXIMUM SINGLE FLANGE IN
  • Flange Connecting Facility and Quantity: 4 THREADED HOLE(S) SINGLE FLANGE FIRST CONNECTION FACILITY
  • Thread Series Designator: UNF SINGLE FLANGE SECOND CONNECTION FACILITY
  • Flange Quantity: 1
  • Coaxial Connector Series Designation: SMA
  • Precious Material and Location: EXTERNAL SURFACES SILVER
Applications
  • Applications requiring Copper Alloy All Tubing Segment and Flange construction
General Description

The Adapter,waveguide, cataloged under National Stock Number 5985-01-090-3578, 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 Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company. Government technical data includes 29 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5985-01-090-3578
Primary Part Number16VA027-1
Item NameAdapter,waveguide
FSC / FSG5985 / 59 — No Item Name Available
ManufacturerLockheed Martin Corporation Div Lockheed Martin Aeronautics Company
StatusACTIVE
Flange StyleCONTACT TYPE SINGLE FLANGE
Flange Outside Width2.590 INCHES MINIMUM AND 2.650 INCHES MAXIMUM SINGLE FLANGE IN
Flange Connecting Facility and Quantity4 THREADED HOLE(S) SINGLE FLANGE FIRST CONNECTION FACILITY
Thread Series DesignatorUNF SINGLE FLANGE SECOND CONNECTION FACILITY
Flange Quantity1
Coaxial Connector Series DesignationSMA
Precious Material and LocationEXTERNAL SURFACES SILVER
Nominal Thread Size0.164 INCHES SINGLE FLANGE FIRST CONNECTION FACILITY IN
Thread Quantity Per Inch32 SINGLE FLANGE SECOND CONNECTION FACILITY
FSC Application DataANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT
Connector End DesignMALE
Voltage Standing Wave Ratio1.25
Precious MaterialSILVER
Thread Class3B SINGLE FLANGE FIRST CONNECTION FACILITY
Adapter Height1.590 INCHES MINIMUM AND 1.650 INCHES MAXIMUM IN
Adapter Length1.750 INCHES MAXIMUM IN
Thread Quantity Per Inch32 SINGLE FLANGE FIRST CONNECTION FACILITY
Tubing Wall Construction StyleSEAMLESS SINGLE TUBING SEGMENT
MaterialCOPPER ALLOY ALL TUBING SEGMENT AND FLANGE
Flange Depth0.470 INCHES MINIMUM AND 0.530 INCHES MAXIMUM SINGLE FLANGE IN
Cross-Sectional Shape StyleINTERNAL, RECTANGULAR EXTERNAL, RECTANGULAR
Surface TreatmentSILVER AND PAINT ALL TUBING SEGMENT AND FLANGE OUTSIDE SURFACES
Adapter Overall Height1.590 INCHES MINIMUM AND 1.650 INCHES MAXIMUM IN
Thread Class3B SINGLE FLANGE SECOND CONNECTION FACILITY
Flange Connecting Facility and Quantity4 THREADED HOLE(S) SINGLE FLANGE SECOND CONNECTION FACILITY
Thread Series DesignatorUNF SINGLE FLANGE FIRST CONNECTION FACILITY
Thread DirectionRIGHT-HAND SINGLE FLANGE FIRST CONNECTION FACILITY
Nominal Thread Size0.190 INCHES SINGLE FLANGE SECOND CONNECTION FACILITY IN
Flange Outside Height1.590 INCHES MINIMUM AND 1.650 INCHES MAXIMUM SINGLE FLANGE IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5940-00-113-9826MS25036-114 INTERCHANGEABLE
Terminal,lug
Sae International Dba Sae International
5975-00-909-33023006T96P01 INTERCHANGEABLE
Cover,junction Box
General Electric Company Dba Ge Aerospace
5310-01-593-860961438 INTERCHANGEABLE
Nut,self-Locking,hexagon
Isringhausen, Inc.
4810-01-674-512361438 INTERCHANGEABLE
Parts Kit,gate Valve
Pentair Water Filtration Inc
Cross-Reference Index
Part NumberManufacturer
90AC699 Microwave Development Laboratories, Inc. Dba Microwave Development Laboratories Inc (USA)
16VA027-1 PRIMARY Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company (USA)
16VA027 Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company (USA)
61438 Waveline Inc (USA)
Related Parts
5940-00-113-9826INTERCHANGEABLE
TERMINAL,LUG
MS25036-114
5975-00-909-3302INTERCHANGEABLE
COVER,JUNCTION BOX
3006T96P01
5310-01-593-8609INTERCHANGEABLE
NUT,SELF-LOCKING,HEXAGON
61438
4810-01-674-5123INTERCHANGEABLE
PARTS KIT,GATE VALVE
61438

Frequently Asked Questions

What is NSN 5985-01-090-3578?

NSN 5985-01-090-3578 is a Adapter,waveguide, manufactured by Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company, classified under FSC 5985 (No Item Name Available). Status: active.

What are the part numbers for NSN 5985-01-090-3578?

NSN 5985-01-090-3578 has 4 cross-referenced part numbers: 90AC699 (Microwave Development Laboratories, Inc. Dba Microwave Development Laboratories Inc), 16VA027-1 (Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company), 16VA027 (Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company), 61438 (Waveline Inc).

What NSN replaces 5985-01-090-3578?

There are 4 known substitutes for 5985-01-090-3578: 5940-00-113-9826, 5975-00-909-3302, 5310-01-593-8609 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 16VA027-1?

Key specifications for 16VA027-1: Flange Style: CONTACT TYPE SINGLE FLANGE; Flange Outside Width: 2.590 INCHES MINIMUM AND 2.650 INCHES MAXIMUM SINGLE FLANGE IN; Flange Connecting Facility and Quantity: 4 THREADED HOLE(S) SINGLE FLANGE FIRST CONNECTION FACILITY; Special Features: 8.20 TO 12.40 GHZ GHz. 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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