PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

40146Waveguide Assembly

L3harris Technologies, Inc Div Space & Airborne Systems · NSN 5985-00-099-3950 · FSC 5985 · No Item Name Available
Verified by PartsTable
NSN 5985-00-099-3950 — this item is cataloged by the U.S. Government under National Stock Number 5985-00-099-3950. Primary manufacturer part number: 40146.
Features
  • Waveguide Assembly — FSC 5985
  • Waveguide Inside Width: 2.840 INCHES NOMINAL IN
  • Flange Inside Width: 2.840 INCHES NOMINAL SINGLE FLANGE IN
  • Waveguide Outside Height: 1.500 INCHES NOMINAL IN
  • Thread Class: 2B SINGLE FLANGE SINGLE CONNECTION FACILITY
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SINGLE FLANGE SINGLE CONNECTION FACILITY
  • Thread Direction: RIGHT-HAND SINGLE FLANGE SINGLE CONNECTION FACILITY
  • Flexibility: RIGID ALL TUBING SEGMENT
Applications
  • Applications requiring Copper Alloy All Tubing Segment and Flange construction
General Description

The Waveguide Assembly, cataloged under National Stock Number 5985-00-099-3950, 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 L3harris Technologies, Inc Div Space & Airborne Systems. Government technical data includes 21 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5985-00-099-3950
Primary Part Number40146
Item NameWaveguide Assembly
FSC / FSG5985 / 59 — No Item Name Available
ManufacturerL3harris Technologies, Inc Div Space & Airborne Systems
StatusACTIVE
Waveguide Inside Width2.840 INCHES NOMINAL IN
Flange Inside Width2.840 INCHES NOMINAL SINGLE FLANGE IN
Waveguide Outside Height1.500 INCHES NOMINAL IN
Thread Class2B SINGLE FLANGE SINGLE CONNECTION FACILITY
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE FLANGE SINGLE CONNECTION FACILITY
Thread DirectionRIGHT-HAND SINGLE FLANGE SINGLE CONNECTION FACILITY
FlexibilityRIGID ALL TUBING SEGMENT
Flange Inside Height1.340 INCHES NOMINAL SINGLE FLANGE IN
Waveguide Outside Width3.000 INCHES NOMINAL IN
Flange StyleCHOKE TYPE SINGLE FLANGE
Tubing Wall Construction StyleSEAMLESS ALL TUBING SEGMENT
Cross-Sectional Shape StyleINTERNAL, RECTANGULAR EXTERNAL, RECTANGULAR
Flange Quantity1
Flange Outside Diameter5.313 INCHES NOMINAL SINGLE FLANGE IN
Waveguide Inside Height1.340 INCHES NOMINAL IN
Nominal Thread Size0.250 INCHES SINGLE FLANGE SINGLE CONNECTION FACILITY IN
Thread Quantity Per Inch20 SINGLE FLANGE SINGLE CONNECTION FACILITY
MaterialCOPPER ALLOY ALL TUBING SEGMENT AND FLANGE
Surface TreatmentOXIDE ALL TUBING SEGMENT AND FLANGE ALL SURFACES
Flange Depth1.250 INCHES NOMINAL SINGLE FLANGE IN
Flange Connecting Facility and Quantity8 THREADED HOLE(S) SINGLE FLANGE SINGLE CONNECTION FACILITY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5815-00-042-8790 INTERCHANGEABLE
Teletypewriter Subassembly
5330-00-678-1113 INTERCHANGEABLE
Seal,plain Encased
4130-00-714-0794 INTERCHANGEABLE
Manifold,charging and Testing,re
5950-01-005-15322534808 INTERCHANGEABLE
Transformer,pulse
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
4820-01-164-706840146-105 INTERCHANGEABLE
Valve,regulating,temperature
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
4820-01-190-6042417-01 INTERCHANGEABLE
Stem,fluid Valve
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
5120-01-431-3933 INTERCHANGEABLE
Socket,socket Wrench
6550-01-449-7157R40146 INTERCHANGEABLE
Control Slide,acid Fast
Remel Inc.
4820-01-516-086740146-203 INTERCHANGEABLE
Valve,regulating,temperature
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
4820-01-516-086840146-204 INTERCHANGEABLE
Valve,regulating,temperature
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
Cross-Reference Index
Part NumberManufacturer
40146 PRIMARY L3harris Technologies, Inc Div Space & Airborne Systems (USA)
Related Parts
5815-00-042-8790INTERCHANGEABLE
TELETYPEWRITER SUBASSEMBLY
5330-00-678-1113INTERCHANGEABLE
SEAL,PLAIN ENCASED
4130-00-714-0794INTERCHANGEABLE
MANIFOLD,CHARGING AND TESTING,RE
5950-01-005-1532INTERCHANGEABLE
TRANSFORMER,PULSE
2534808
4820-01-164-7068INTERCHANGEABLE
VALVE,REGULATING,TEMPERATURE
40146-105
4820-01-190-6042INTERCHANGEABLE
STEM,FLUID VALVE
417-01
5120-01-431-3933INTERCHANGEABLE
SOCKET,SOCKET WRENCH
6550-01-449-7157INTERCHANGEABLE
CONTROL SLIDE,ACID FAST
R40146
4820-01-516-0867INTERCHANGEABLE
VALVE,REGULATING,TEMPERATURE
40146-203
4820-01-516-0868INTERCHANGEABLE
VALVE,REGULATING,TEMPERATURE
40146-204
4820-01-516-0871INTERCHANGEABLE
VALVE,REGULATING,TEMPERATURE
40146-205
4820-01-516-0872INTERCHANGEABLE
VALVE,REGULATING,TEMPERATURE
40146-206

Frequently Asked Questions

What is NSN 5985-00-099-3950?

NSN 5985-00-099-3950 is a Waveguide Assembly, manufactured by L3harris Technologies, Inc Div Space & Airborne Systems, classified under FSC 5985 (No Item Name Available). Status: active.

What are the part numbers for NSN 5985-00-099-3950?

NSN 5985-00-099-3950 has 1 cross-referenced part number: 40146 (L3harris Technologies, Inc Div Space & Airborne Systems).

What NSN replaces 5985-00-099-3950?

There are 12 known substitutes for 5985-00-099-3950: 5815-00-042-8790, 5330-00-678-1113, 4130-00-714-0794 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 40146?

Key specifications for 40146: Waveguide Inside Width: 2.840 INCHES NOMINAL IN; Flange Inside Width: 2.840 INCHES NOMINAL SINGLE FLANGE IN; Waveguide Outside Height: 1.500 INCHES NOMINAL IN; Thread Class: 2B SINGLE FLANGE SINGLE CONNECTION FACILITY. 21 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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