PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

154318Adapter,waveguide

Northrop Grumman Systems Corporation · NSN 5985-01-054-3522 · FSC 5985 · No Item Name Available
Verified by PartsTable
NSN 5985-01-054-3522 — this item is cataloged by the U.S. Government under National Stock Number 5985-01-054-3522. Primary manufacturer part number: 154318.
Features
  • Adapter,waveguide — FSC 5985
  • Surface Treatment: NICKEL SINGLE TUBING SEGMENT INSIDE SURFACES
  • Flange Outside Width: 1.860 INCHES MINIMUM AND 1.890 INCHES MAXIMUM SECOND FLANGE IN
  • Flange Inside Width: 1.218 INCHES MINIMUM AND 1.226 INCHES MAXIMUM SECOND FLANGE IN
  • Voltage Standing Wave Ratio: 1.08
  • Tubing Wall Construction Style: SEAMLESS SINGLE TUBING SEGMENT
  • Flange Inside Diameter: 1.548 INCHES MINIMUM AND 1.554 INCHES MAXIMUM FIRST FLANGE IN
  • Flange Connecting Hole Diameter: 0.169 INCHES MINIMUM AND 0.172 INCHES MAXIMUM SECOND FLANGE SINGLE CONNECTION FACILITY IN
Applications
  • Applications requiring Aluminum Alloy Single Tubing Segment construction
General Description

The Adapter,waveguide, cataloged under National Stock Number 5985-01-054-3522, 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 Northrop Grumman Systems Corporation. Government technical data includes 29 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
NSN5985-01-054-3522
Primary Part Number154318
Item NameAdapter,waveguide
FSC / FSG5985 / 59 — No Item Name Available
ManufacturerNorthrop Grumman Systems Corporation
StatusACTIVE
Surface TreatmentNICKEL SINGLE TUBING SEGMENT INSIDE SURFACES
Flange Outside Width1.860 INCHES MINIMUM AND 1.890 INCHES MAXIMUM SECOND FLANGE IN
Flange Inside Width1.218 INCHES MINIMUM AND 1.226 INCHES MAXIMUM SECOND FLANGE IN
Voltage Standing Wave Ratio1.08
Tubing Wall Construction StyleSEAMLESS SINGLE TUBING SEGMENT
Flange Inside Diameter1.548 INCHES MINIMUM AND 1.554 INCHES MAXIMUM FIRST FLANGE IN
Flange Connecting Hole Diameter0.169 INCHES MINIMUM AND 0.172 INCHES MAXIMUM SECOND FLANGE SINGLE CONNECTION FACILITY IN
Thread DirectionRIGHT-HAND FIRST FLANGE SINGLE CONNECTION FACILITY
Flange Inside Height0.493 INCHES MINIMUM AND 0.501 INCHES MAXIMUM SECOND FLANGE IN
Style DesignatorWAVEGUIDE TO WAVEGUIDE
Surface TreatmentENAMEL SECOND FLANGE OUTSIDE SURFACES
Flange Outside Height1.860 INCHES MINIMUM AND 1.890 INCHES MAXIMUM SECOND FLANGE IN
Surface TreatmentENAMEL FIRST FLANGE OUTSIDE SURFACES
Waveguide Inside Width1.118 INCHES MINIMUM AND 1.126 INCHES MAXIMUM IN
Surface TreatmentNICKEL SECOND FLANGE INSIDE SURFACES
Surface TreatmentCHROMATE ZINC AND ENAMEL SINGLE TUBING SEGMENT OUTSIDE SURFACES
Flange Inside Height0.396 INCHES MINIMUM AND 0.404 INCHES MAXIMUM FIRST FLANGE IN
Thread Class2B FIRST FLANGE SINGLE CONNECTION FACILITY
Flange StyleCHOKE TYPE SECOND FLANGE
MaterialALUMINUM ALLOY SINGLE TUBING SEGMENT
Flange StyleCHOKE TYPE FIRST FLANGE
Flange Outside Width1.610 INCHES MINIMUM AND 1.640 INCHES MAXIMUM FIRST FLANGE IN
Flange Inside Width0.896 INCHES MINIMUM AND 0.904 INCHES MAXIMUM FIRST FLANGE IN
MaterialALUMINUM ALLOY SECOND FLANGE
MaterialALUMINUM ALLOY FIRST FLANGE
Adapter Length2.500 INCHES NOMINAL IN
Waveguide Inside Height0.493 INCHES MINIMUM AND 0.501 INCHES MAXIMUM IN
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) FIRST FLANGE SINGLE CONNECTION FACILITY
Waveguide Outside Height0.621 INCHES MINIMUM AND 0.629 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5365-00-021-0803154318 INTERCHANGEABLE
Spacer,plate
Telemechanics Inc
3030-00-994-991824573 INTERCHANGEABLE
Belts,v,matched Set
Contitech Usa, Inc Dba Veyance Technologies
Cross-Reference Index
Part NumberManufacturer
154318 Mta Inc (USA)
154318 PRIMARY Northrop Grumman Systems Corporation (USA)
Related Parts
5365-00-021-0803INTERCHANGEABLE
SPACER,PLATE
154318
3030-00-994-9918INTERCHANGEABLE
BELTS,V,MATCHED SET
24573

Frequently Asked Questions

What is NSN 5985-01-054-3522?

NSN 5985-01-054-3522 is a Adapter,waveguide, manufactured by Northrop Grumman Systems Corporation, classified under FSC 5985 (No Item Name Available). Status: active.

What are the part numbers for NSN 5985-01-054-3522?

NSN 5985-01-054-3522 has 2 cross-referenced part numbers: 154318 (Mta Inc), 154318 (Northrop Grumman Systems Corporation).

What NSN replaces 5985-01-054-3522?

There are 2 known substitutes for 5985-01-054-3522: 5365-00-021-0803, 3030-00-994-9918. Verify interchangeability with system specifications before substitution.

What are the specifications of 154318?

Key specifications for 154318: Surface Treatment: NICKEL SINGLE TUBING SEGMENT INSIDE SURFACES; Flange Outside Width: 1.860 INCHES MINIMUM AND 1.890 INCHES MAXIMUM SECOND FLANGE IN; Flange Inside Width: 1.218 INCHES MINIMUM AND 1.226 INCHES MAXIMUM SECOND FLANGE IN; Voltage Standing Wave Ratio: 1.08. 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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