PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

103574Waveguide Assembly

Frontgrade Technologies Inc. · NSN 5985-00-767-5093 · FSC 5985 · No Item Name Available
Verified by PartsTable
NSN 5985-00-767-5093 — this item is cataloged by the U.S. Government under National Stock Number 5985-00-767-5093. Primary manufacturer part number: 103574.
Features
  • Waveguide Assembly — FSC 5985
  • Waveguide Inside Width: 0.900 INCHES NOMINAL IN
  • Flange Outside Height: 1.625 INCHES NOMINAL ALL FLANGES IN
  • Style Designator: STRAIGHT TYPE
  • Waveguide Length: 5.000 INCHES NOMINAL IN
  • Precious Material: SILVER
  • Flange Inside Height: 0.505 INCHES NOMINAL ALL FLANGES IN
  • Flange Connecting Hole Diameter: 0.169 INCHES NOMINAL ALL FLANGES SINGLE CONNECTION FACILITY IN
Applications
  • Applications requiring Metal Nonferrous/d Single Tubing Segment construction
General Description

The Waveguide Assembly, cataloged under National Stock Number 5985-00-767-5093, 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 Frontgrade Technologies Inc.. Government technical data includes 24 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 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
NSN5985-00-767-5093
Primary Part Number103574
Item NameWaveguide Assembly
FSC / FSG5985 / 59 — No Item Name Available
ManufacturerFrontgrade Technologies Inc.
StatusACTIVE
Waveguide Inside Width0.900 INCHES NOMINAL IN
Flange Outside Height1.625 INCHES NOMINAL ALL FLANGES IN
Style DesignatorSTRAIGHT TYPE
Waveguide Length5.000 INCHES NOMINAL IN
Precious MaterialSILVER
Flange Inside Height0.505 INCHES NOMINAL ALL FLANGES IN
Flange Connecting Hole Diameter0.169 INCHES NOMINAL ALL FLANGES SINGLE CONNECTION FACILITY IN
MaterialMETAL NONFERROUS/D SINGLE TUBING SEGMENT
Flange StyleCOVER TYPE ALL FLANGES
Tubing Wall Construction StyleSEAMLESS SINGLE TUBING SEGMENT
MaterialCOPPER ALLOY SINGLE FLANGE
MaterialRUBBER SINGLE TUBING JACKET
FlexibilityFLEXIBLE SINGLE TUBING SEGMENT
Flange Inside Width1.063 INCHES NOMINAL ALL FLANGES IN
Flange Depth0.438 INCHES NOMINAL ALL FLANGES IN
Precious Material and LocationINTERNAL TUBING SURFACE SILVER
Waveguide Outside Height0.630 INCHES NOMINAL IN
Waveguide Outside Width1.200 INCHES NOMINAL IN
Flange Connecting Facility and Quantity4 UNTHREADED HOLE(S) ALL FLANGES SINGLE CONNECTION FACILITY
Flange Outside Width1.625 INCHES NOMINAL ALL FLANGES IN
Waveguide Inside Height0.400 INCHES NOMINAL IN
Flange Quantity2
Surface TreatmentSILVER SINGLE TUBING SEGMENT INSIDE SURFACES
Cross-Sectional Shape StyleINTERNAL, RECTANGULAR EXTERNAL, RECTANGULAR
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
6610-00-105-9662103574 INTERCHANGEABLE
Plate Assembly
Astronautics Corporation of America
5315-00-198-5967103574 INTERCHANGEABLE
Pin,tapered,plain
Us Army Aviation and Missile Command
5998-01-282-2824103574 INTERCHANGEABLE
Circuit Card Assembly
Aimtron Systems, Llc
5310-01-725-4869103574 INTERCHANGEABLE
Washer,recessed
Hartzell Propeller Llc
Cross-Reference Index
Part NumberManufacturer
1184775 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
103574 PRIMARY Frontgrade Technologies Inc. (USA)
103574 Litton Systems Inc Airtron Div (USA)
Related Parts
6610-00-105-9662INTERCHANGEABLE
PLATE ASSEMBLY
103574
5315-00-198-5967INTERCHANGEABLE
PIN,TAPERED,PLAIN
103574
5998-01-282-2824INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
103574
5310-01-725-4869INTERCHANGEABLE
WASHER,RECESSED
103574

Frequently Asked Questions

What is NSN 5985-00-767-5093?

NSN 5985-00-767-5093 is a Waveguide Assembly, manufactured by Frontgrade Technologies Inc., classified under FSC 5985 (No Item Name Available). Status: active.

What are the part numbers for NSN 5985-00-767-5093?

NSN 5985-00-767-5093 has 3 cross-referenced part numbers: 1184775 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 103574 (Frontgrade Technologies Inc.), 103574 (Litton Systems Inc Airtron Div).

What NSN replaces 5985-00-767-5093?

There are 4 known substitutes for 5985-00-767-5093: 6610-00-105-9662, 5315-00-198-5967, 5998-01-282-2824 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 103574?

Key specifications for 103574: Waveguide Inside Width: 0.900 INCHES NOMINAL IN; Flange Outside Height: 1.625 INCHES NOMINAL ALL FLANGES IN; Style Designator: STRAIGHT TYPE; Waveguide Length: 5.000 INCHES NOMINAL IN. 24 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com