PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

SM-A-718671-3Waveguide Assembly

Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir · NSN 5985-01-037-7352 · FSC 5985 · No Item Name Available
Verified by PartsTable
NSN 5985-01-037-7352 — this item is cataloged by the U.S. Government under National Stock Number 5985-01-037-7352. Primary manufacturer part number: SM-A-718671-3.
Features
  • Waveguide Assembly — FSC 5985
  • Style Designator: STRAIGHT TYPE
  • FSC Application Data: ANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT
  • Voltage Standing Wave Ratio: 1.05
  • Waveguide Outside Height: 0.621 INCHES MINIMUM AND 0.629 INCHES MAXIMUM IN
  • Flange Connecting Hole Diameter: 0.169 INCHES MINIMUM AND 0.172 INCHES MAXIMUM ALL FLANGES ALL CONNECTION FACILITIES IN
  • Flange Quantity: 2
  • Flange Inside Height: 0.628 INCHES MINIMUM AND 0.631 INCHES MAXIMUM ALL FLANGES IN
Applications
  • Applications requiring Copper Alloy All Tubing Segment and Flange construction
General Description

The Waveguide Assembly, cataloged under National Stock Number 5985-01-037-7352, 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 Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir. Government technical data includes 27 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, 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
NSN5985-01-037-7352
Primary Part NumberSM-A-718671-3
Item NameWaveguide Assembly
FSC / FSG5985 / 59 — No Item Name Available
ManufacturerUs Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
StatusACTIVE
Style DesignatorSTRAIGHT TYPE
FSC Application DataANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT
Voltage Standing Wave Ratio1.05
Waveguide Outside Height0.621 INCHES MINIMUM AND 0.629 INCHES MAXIMUM IN
Flange Connecting Hole Diameter0.169 INCHES MINIMUM AND 0.172 INCHES MAXIMUM ALL FLANGES ALL CONNECTION FACILITIES IN
Flange Quantity2
Flange Inside Height0.628 INCHES MINIMUM AND 0.631 INCHES MAXIMUM ALL FLANGES IN
MaterialCOPPER ALLOY ALL TUBING SEGMENT AND FLANGE
Waveguide Outside Width1.246 INCHES MINIMUM AND 1.254 INCHES MAXIMUM IN
Precious Material and LocationINTERNAL SURFACES SILVER
Flange Depth0.423 INCHES MINIMUM AND 0.453 INCHES MAXIMUM ALL FLANGES IN
Surface TreatmentPAINT ALL TUBING SEGMENT AND FLANGE OUTSIDE SURFACES
Tubing Twist Angle in Deg90.0 SINGLE TUBING SEGMENT
Waveguide Length6.000 INCHES NOMINAL IN
Surface TreatmentSILVER ALL TUBING SEGMENT AND FLANGE INSIDE SURFACES
Flange Outside Height1.860 INCHES MINIMUM AND 1.890 INCHES MAXIMUM ALL FLANGES IN
Waveguide Inside Height0.493 INCHES MINIMUM AND 0.501 INCHES MAXIMUM IN
Waveguide Inside Width1.118 INCHES MINIMUM AND 1.126 INCHES MAXIMUM IN
Flange StyleCOVER TYPE ALL FLANGES
Flange Outside Width1.860 INCHES MINIMUM AND 1.890 INCHES MAXIMUM ALL FLANGES IN
Flange Inside Width1.253 INCHES MINIMUM AND 1.256 INCHES MAXIMUM ALL FLANGES IN
FlexibilityRIGID SINGLE TUBING SEGMENT
Tubing Twist TypeSTRAIGHT TWIST SINGLE TUBING SEGMENT
Tubing Wall Construction StyleSEAMLESS SINGLE TUBING SEGMENT
Flange Connecting Facility and Quantity4 UNTHREADED HOLE(S) ALL FLANGES ALL CONNECTION FACILITIES
Precious MaterialSILVER
Cross-Sectional Shape StyleINTERNAL, RECTANGULAR EXTERNAL, RECTANGULAR
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
3020-00-148-18955902 INTERCHANGEABLE
Gear,oil Pump Idler
Northrop Grumman Systems Corporation Div Marine Systems
5999-00-204-5758127001 INTERCHANGEABLE
Clip,electrical
Littelfuse, Inc.
4510-00-216-5426 INTERCHANGEABLE
Rod,tank Float,water Closet
5960-00-248-3090 INTERCHANGEABLE
Electron Tube
5935-00-259-75167599662 INTERCHANGEABLE
Connector,receptacle,electrical
Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate
2910-00-354-5028 INTERCHANGEABLE
Bowl,sediment
2805-00-364-4947005902 INTERCHANGEABLE
Counterweight
Caterpillar Inc Div Caterpillar Defense
5960-00-929-12565902 INTERCHANGEABLE
Electron Tube
Raytheon Company Dba Raytheon Co
8115-00-935-59025902 INTERCHANGEABLE
Box,shipping
Loye Keesee Dba Keesee Box Company Div Government Resource Pkg Prod
6630-01-058-744721W0020 INTERCHANGEABLE
Test Set,water Turbidity and Col
Ward's Natural Science Establishment Inc
Cross-Reference Index
Part NumberManufacturer
590-2 Mackay Communications, Inc (USA)
1810266 Northrop Grumman Systems Corporation (USA)
590-2 Waveline Inc (USA)
SM-A-718671-3 PRIMARY Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir (USA)
Related Parts
3020-00-148-1895INTERCHANGEABLE
GEAR,OIL PUMP IDLER
5902
5999-00-204-5758INTERCHANGEABLE
CLIP,ELECTRICAL
127001
4510-00-216-5426INTERCHANGEABLE
ROD,TANK FLOAT,WATER CLOSET
5960-00-248-3090INTERCHANGEABLE
ELECTRON TUBE
5935-00-259-7516INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
7599662
2910-00-354-5028INTERCHANGEABLE
BOWL,SEDIMENT
2805-00-364-4947INTERCHANGEABLE
COUNTERWEIGHT
005902
5960-00-929-1256INTERCHANGEABLE
ELECTRON TUBE
5902
8115-00-935-5902INTERCHANGEABLE
BOX,SHIPPING
5902
6630-01-058-7447INTERCHANGEABLE
TEST SET,WATER TURBIDITY AND COL
21W0020
5340-01-085-4436INTERCHANGEABLE
CLIP,SPRING TENSION
6013-7CC
5950-01-154-7434INTERCHANGEABLE
REACTOR
77C717488P3

Frequently Asked Questions

What is NSN 5985-01-037-7352?

NSN 5985-01-037-7352 is a Waveguide Assembly, manufactured by Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir, classified under FSC 5985 (No Item Name Available). Status: active.

What are the part numbers for NSN 5985-01-037-7352?

NSN 5985-01-037-7352 has 4 cross-referenced part numbers: 590-2 (Mackay Communications, Inc), 1810266 (Northrop Grumman Systems Corporation), 590-2 (Waveline Inc), SM-A-718671-3 (Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir).

What NSN replaces 5985-01-037-7352?

There are 12 known substitutes for 5985-01-037-7352: 3020-00-148-1895, 5999-00-204-5758, 4510-00-216-5426 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of SM-A-718671-3?

Key specifications for SM-A-718671-3: Style Designator: STRAIGHT TYPE; FSC Application Data: ANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT; Voltage Standing Wave Ratio: 1.05; Waveguide Outside Height: 0.621 INCHES MINIMUM AND 0.629 INCHES MAXIMUM IN. 27 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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