PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

73644Waveguide Assembly

L3harris Technologies, Inc Div Space & Airborne Systems · NSN 5985-00-608-0008 · FSC 5985 · No Item Name Available
Verified by PartsTable
NSN 5985-00-608-0008 — this item is cataloged by the U.S. Government under National Stock Number 5985-00-608-0008. Primary manufacturer part number: 73644.
Features
  • Waveguide Assembly — FSC 5985
  • Flange Connecting Facility and Quantity: 4 THREADED HOLE(S) ALL FLANGES SINGLE CONNECTION FACILITY
  • Waveguide Length: 1.828 FEET NOMINAL FT
  • Waveguide Outside Height: 0.625 INCHES NOMINAL IN
  • Material: COPPER ALLOY ALL FLANGE
  • Flange Inside Width: 1.122 INCHES NOMINAL ALL FLANGES IN
  • Flange Depth: 0.625 INCHES NOMINAL ALL FLANGES IN
  • Flange Style: CHOKE TYPE ALL FLANGES
Applications
  • Applications requiring Copper Alloy All Flange construction
General Description

The Waveguide Assembly, cataloged under National Stock Number 5985-00-608-0008, 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 16 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. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5985-00-608-0008
Primary Part Number73644
Item NameWaveguide Assembly
FSC / FSG5985 / 59 — No Item Name Available
ManufacturerL3harris Technologies, Inc Div Space & Airborne Systems
StatusACTIVE
Flange Connecting Facility and Quantity4 THREADED HOLE(S) ALL FLANGES SINGLE CONNECTION FACILITY
Waveguide Length1.828 FEET NOMINAL FT
Waveguide Outside Height0.625 INCHES NOMINAL IN
MaterialCOPPER ALLOY ALL FLANGE
Flange Inside Width1.122 INCHES NOMINAL ALL FLANGES IN
Flange Depth0.625 INCHES NOMINAL ALL FLANGES IN
Flange StyleCHOKE TYPE ALL FLANGES
Waveguide Inside Height0.497 INCHES NOMINAL IN
FSC Application DataRADAR EQUPMENT,EXCEPT AIRBORNE
Waveguide Outside Width1.250 INCHES NOMINAL IN
Waveguide Inside Width1.122 INCHES NOMINAL IN
Style DesignatorSTRAIGHT TYPE
Flange Outside Height1.875 INCHES NOMINAL ALL FLANGES IN
Flange Outside Width1.875 INCHES NOMINAL ALL FLANGES IN
Cross-Sectional Shape StyleINTERNAL, RECTANGULAR EXTERNAL, RECTANGULAR
Flange Quantity2
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
3120-00-111-371173644 INTERCHANGEABLE
Bushing,sleeve
Prestolite Electric Inc Defense Products Div
5331-00-641-8282627 INTERCHANGEABLE
O-Ring
Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems
Cross-Reference Index
Part NumberManufacturer
73644 PRIMARY L3harris Technologies, Inc Div Space & Airborne Systems (USA)
Related Parts
3120-00-111-3711INTERCHANGEABLE
BUSHING,SLEEVE
73644
5331-00-641-8282INTERCHANGEABLE
O-RING
627

Frequently Asked Questions

What is NSN 5985-00-608-0008?

NSN 5985-00-608-0008 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 5985-00-608-0008?

NSN 5985-00-608-0008 has 1 cross-referenced part number: 73644 (L3harris Technologies, Inc Div Space & Airborne Systems).

What NSN replaces 5985-00-608-0008?

There are 2 known substitutes for 5985-00-608-0008: 3120-00-111-3711, 5331-00-641-8282. Verify interchangeability with system specifications before substitution.

What are the specifications of 73644?

Key specifications for 73644: Flange Connecting Facility and Quantity: 4 THREADED HOLE(S) ALL FLANGES SINGLE CONNECTION FACILITY; Waveguide Length: 1.828 FEET NOMINAL FT; Waveguide Outside Height: 0.625 INCHES NOMINAL IN; Material: COPPER ALLOY ALL FLANGE. 17 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