PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20504Waveguide Assembly

Fisica Applied Technologies, Inc. Div Randtron Antenna Systems · NSN 5985-01-541-5596 · FSC 5985 · No Item Name Available
Verified by PartsTable
NSN 5985-01-541-5596 — this item is cataloged by the U.S. Government under National Stock Number 5985-01-541-5596. Primary manufacturer part number: 20504.
Features
  • Waveguide Assembly — FSC 5985
  • Flexibility: RIGID ALL TUBING SEGMENT
  • Supplementary Features: CONSISTS OF INPUT WAVEGUIDE, OUTPUT HOUSING CHANNEL 4, INPT HSG CHAN 4,BEARING AND HARDWARE
  • 1 verified cross-reference
  • Primary manufacturer: Fisica Applied Technologies, Inc. Div Randtron Antenna Systems
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Waveguide Assembly, cataloged under National Stock Number 5985-01-541-5596, 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 Fisica Applied Technologies, Inc. Div Randtron Antenna Systems. Government technical data includes 2 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. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5985-01-541-5596
Primary Part Number20504
Item NameWaveguide Assembly
FSC / FSG5985 / 59 — No Item Name Available
ManufacturerFisica Applied Technologies, Inc. Div Randtron Antenna Systems
StatusACTIVE
FlexibilityRIGID ALL TUBING SEGMENT
Supplementary FeaturesCONSISTS OF INPUT WAVEGUIDE, OUTPUT HOUSING CHANNEL 4, INPT HSG CHAN 4,BEARING AND HARDWARE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
3431-00-123-668445V45 INTERCHANGEABLE
Collet Body,welding Torch
Esab Group, Inc., the Dba Esab Welding and Cutting Products Div Esab Welding and Cuttng
5342-00-211-9791 INTERCHANGEABLE
Hook Installation Kit
5950-00-256-8971CE213246 INTERCHANGEABLE
Transformer,power
National Security Agency
3110-00-554-5406105ATF INTERCHANGEABLE
Bearing,ball,annular
Fag Bearings Corporation
5930-00-696-28222050-4 INTERCHANGEABLE
Switch,pressure
Itt Aerospace Controls Llc Dba Itt Aerospace Controls Unit S
3020-00-784-086620504 INTERCHANGEABLE
Gear,spur
Naval Inventory Control Point Mechanicsburg
5315-01-068-697920504 INTERCHANGEABLE
Rod
Barksdale, Inc
2815-01-074-827322205 INTERCHANGEABLE
Injector Assembly,f
Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems
5940-01-230-8545 INTERCHANGEABLE
Terminal,v Bus
5330-01-399-165520504 INTERCHANGEABLE
Retainer,packing
Triumph Actuation Systems - Valencia, Inc. Dba Triumph Actuation Systems - Valencia Inc Div Triumph Actuation Systems-Val
Cross-Reference Index
Part NumberManufacturer
20504 PRIMARY Fisica Applied Technologies, Inc. Div Randtron Antenna Systems (USA)
Related Parts
3431-00-123-6684INTERCHANGEABLE
COLLET BODY,WELDING TORCH
45V45
5342-00-211-9791INTERCHANGEABLE
HOOK INSTALLATION KIT
5950-00-256-8971INTERCHANGEABLE
TRANSFORMER,POWER
CE213246
3110-00-554-5406INTERCHANGEABLE
BEARING,BALL,ANNULAR
105ATF
5930-00-696-2822INTERCHANGEABLE
SWITCH,PRESSURE
2050-4
3020-00-784-0866INTERCHANGEABLE
GEAR,SPUR
20504
5315-01-068-6979INTERCHANGEABLE
ROD
20504
2815-01-074-8273INTERCHANGEABLE
INJECTOR ASSEMBLY,F
22205
5940-01-230-8545INTERCHANGEABLE
TERMINAL,V BUS
5330-01-399-1655INTERCHANGEABLE
RETAINER,PACKING
20504
5920-01-693-2327INTERCHANGEABLE
FUSEHOLDER,BLOCK
20504

Frequently Asked Questions

What is NSN 5985-01-541-5596?

NSN 5985-01-541-5596 is a Waveguide Assembly, manufactured by Fisica Applied Technologies, Inc. Div Randtron Antenna Systems, classified under FSC 5985 (No Item Name Available). Status: active.

What are the part numbers for NSN 5985-01-541-5596?

NSN 5985-01-541-5596 has 1 cross-referenced part number: 20504 (Fisica Applied Technologies, Inc. Div Randtron Antenna Systems).

What NSN replaces 5985-01-541-5596?

There are 11 known substitutes for 5985-01-541-5596: 3431-00-123-6684, 5342-00-211-9791, 5950-00-256-8971 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 20504?

Key specifications for 20504: Part Name Assigned by Controlling Agency: CHANNEL 4 ASSEMBLY; Flexibility: RIGID ALL TUBING SEGMENT; Supplementary Features: CONSISTS OF INPUT WAVEGUIDE, OUTPUT HOUSING CHANNEL 4, INPT HSG CHAN 4,BEARING AND HARDWARE; End Item Identification: AN/APY-1. 4 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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