PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

11437577-3Waveguide Assembly

Us Army Aviation and Missile Command · NSN 5985-01-198-6298 · FSC 5985 · No Item Name Available
Verified by PartsTable
NSN 5985-01-198-6298 — this item is cataloged by the U.S. Government under National Stock Number 5985-01-198-6298. Primary manufacturer part number: 11437577-3.
Features
  • Waveguide Assembly — FSC 5985
  • Tubing Wall Construction Style: SEAMLESS SINGLE TUBING SEGMENT
  • Flange Connecting Hole Diameter: 0.257 INCHES NOMINAL ALL FLANGES ALL CONNECTION FACILITIES IN
  • Flange Outside Height: 2.500 INCHES NOMINAL ALL FLANGES IN
  • Flange Quantity: 2
  • Voltage Standing Wave Ratio: 1.04
  • Flange Inside Width: 1.872 INCHES NOMINAL ALL FLANGES IN
  • Flange Outside Width: 3.500 INCHES NOMINAL ALL FLANGES IN
Applications
  • Applications requiring Copper Alloy All Tubing Segment and Flange construction
General Description

The Waveguide Assembly, cataloged under National Stock Number 5985-01-198-6298, 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 Aviation and Missile Command. 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. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5985-01-198-6298
Primary Part Number11437577-3
Item NameWaveguide Assembly
FSC / FSG5985 / 59 — No Item Name Available
ManufacturerUs Army Aviation and Missile Command
StatusACTIVE
Tubing Wall Construction StyleSEAMLESS SINGLE TUBING SEGMENT
Flange Connecting Hole Diameter0.257 INCHES NOMINAL ALL FLANGES ALL CONNECTION FACILITIES IN
Flange Outside Height2.500 INCHES NOMINAL ALL FLANGES IN
Flange Quantity2
Voltage Standing Wave Ratio1.04
Flange Inside Width1.872 INCHES NOMINAL ALL FLANGES IN
Flange Outside Width3.500 INCHES NOMINAL ALL FLANGES IN
Waveguide Outside Width2.000 INCHES NOMINAL IN
MaterialCOPPER ALLOY ALL TUBING SEGMENT AND FLANGE
Waveguide Longer Offset Distance6.710 INCHES NOMINAL IN
Waveguide Outside Height1.000 INCHES NOMINAL IN
Flange StyleCONTACT TYPE ALL FLANGES
FlexibilityFLEXIBLE SINGLE TUBING SEGMENT
Style DesignatorBEND TYPE
Waveguide Offset Distance3.720 INCHES NOMINAL IN
Operating Pressure15.0 POUNDS PER SQUARE INCH GAUGE (PSIG) MAXIMUM LBS
Flange Connecting Facility and Quantity8 UNTHREADED HOLE(S) ALL FLANGES ALL CONNECTION FACILITIES
Waveguide Inside Width1.872 INCHES NOMINAL IN
Waveguide Inside Height0.872 INCHES NOMINAL IN
Cross-Sectional Shape StyleINTERNAL, RECTANGULAR EXTERNAL, RECTANGULAR
Insertion Loss in Decibels0.03
Flange Depth0.690 INCHES NOMINAL ALL FLANGES IN
Surface TreatmentPAINT ALL TUBING SEGMENT AND FLANGE OUTSIDE SURFACES
Flange Inside Height0.872 INCHES NOMINAL ALL FLANGES IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5360-00-737-67427376742 INTERCHANGEABLE
Spring,helical,compression
U S Army Tank Automotive Command Amsta-Im-Mm
3110-00-810-91531202GF-1B1 INTERCHANGEABLE
Bearing,ball,annular
Schatz Bearing Corporation Dba Schatz Bearing Corp
2990-01-017-063447502 INTERCHANGEABLE
Pipe,exhaust
Walker Mfg Co
5120-01-398-790800947502000 INTERCHANGEABLE
Socket,socket Wrench
Sears, Roebuck and Co. Dba Sears Div Sears Commercial
5120-01-473-9689 INTERCHANGEABLE
Nail Set Assortment
5305-01-563-79094750-2 INTERCHANGEABLE
Screw,hex,aircraft,
Matthew Warren, Inc Dba Raf Electronic Hardware Div Raf Electronic Hardware, Llc
4730-01-665-730347502-1 INTERCHANGEABLE
Manifold Assembly,hydraulic
Eaton Corporation Dba Eaton Inoac
Cross-Reference Index
Part NumberManufacturer
47502 Page Chester Ltd Dba Cooperative Industries Div Cooperative Industries Aerospace Defense (USA)
11437577-3 PRIMARY Us Army Aviation and Missile Command (USA)
TVS 78024-3 Microwave Engineering Corporation (USA)
Related Parts
5360-00-737-6742INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
7376742
3110-00-810-9153INTERCHANGEABLE
BEARING,BALL,ANNULAR
1202GF-1B1
2990-01-017-0634INTERCHANGEABLE
PIPE,EXHAUST
47502
5120-01-398-7908INTERCHANGEABLE
SOCKET,SOCKET WRENCH
00947502000
5120-01-473-9689INTERCHANGEABLE
NAIL SET ASSORTMENT
5305-01-563-7909INTERCHANGEABLE
SCREW,HEX,AIRCRAFT,
4750-2
4730-01-665-7303INTERCHANGEABLE
MANIFOLD ASSEMBLY,HYDRAULIC
47502-1

Frequently Asked Questions

What is NSN 5985-01-198-6298?

NSN 5985-01-198-6298 is a Waveguide Assembly, manufactured by Us Army Aviation and Missile Command, classified under FSC 5985 (No Item Name Available). Status: active.

What are the part numbers for NSN 5985-01-198-6298?

NSN 5985-01-198-6298 has 3 cross-referenced part numbers: 47502 (Page Chester Ltd Dba Cooperative Industries Div Cooperative Industries Aerospace Defense), 11437577-3 (Us Army Aviation and Missile Command), TVS 78024-3 (Microwave Engineering Corporation).

What NSN replaces 5985-01-198-6298?

There are 7 known substitutes for 5985-01-198-6298: 5360-00-737-6742, 3110-00-810-9153, 2990-01-017-0634 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 11437577-3?

Key specifications for 11437577-3: End Item Identification: 1430-01-087-6330; Tubing Wall Construction Style: SEAMLESS SINGLE TUBING SEGMENT; Flange Connecting Hole Diameter: 0.257 INCHES NOMINAL ALL FLANGES ALL CONNECTION FACILITIES IN; Flange Outside Height: 2.500 INCHES NOMINAL ALL FLANGES IN. 25 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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