PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

201-057Mixer,crystal,coaxial

L-3 Communications Microdyne · NSN 5985-00-459-5586 · FSC 5985 · No Item Name Available
Verified by PartsTable
NSN 5985-00-459-5586 — this item is cataloged by the U.S. Government under National Stock Number 5985-00-459-5586. Primary manufacturer part number: 201-057.
Features
  • Mixer,crystal,coaxial — FSC 5985
  • Frequency Range Rating: +5.0 TO 500.0 MEGAHERTZ
  • FSC Application Data: ANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT
  • Insertion Loss in Decibels: 9.0
  • Crystal Nominal Current Rating in Milliamperes: 50.0
  • Local Oscillator Input Adjustability: NONADJUSTABLE
  • 9 verified cross-references
  • Primary manufacturer: L-3 Communications Microdyne
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Mixer,crystal,coaxial, cataloged under National Stock Number 5985-00-459-5586, 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 L-3 Communications Microdyne. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 8 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5985-00-459-5586
Primary Part Number201-057
Item NameMixer,crystal,coaxial
FSC / FSG5985 / 59 — No Item Name Available
ManufacturerL-3 Communications Microdyne
StatusACTIVE
Frequency Range Rating+5.0 TO 500.0 MEGAHERTZ
FSC Application DataANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT
Insertion Loss in Decibels9.0
Crystal Nominal Current Rating in Milliamperes50.0
Local Oscillator Input AdjustabilityNONADJUSTABLE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5930-00-202-0878093444 INTERCHANGEABLE
Switch,sensitive
The Peelle Company
2840-01-026-7087 INTERCHANGEABLE
Seal,air,aircraft Gas Turbine En
4330-01-049-598520-1057 INTERCHANGEABLE
Barrier,thermal Air
Wintec Llc
5895-01-155-0751292125P1 INTERCHANGEABLE
Mixer Stage,frequency
Bae Systems Information and Electronic Systems Integration Inc. Dba Bae Systems
5995-01-451-93101721981 INTERCHANGEABLE
Cable Assembly,special Purpose,e
Raytheon Company Div Rmd Strategic
4820-01-724-4506201057 INTERCHANGEABLE
Valve,regulating,fluid Pressure
Sauer Compressors Usa, Inc.
Cross-Reference Index
Part NumberManufacturer
201-057 L-3 Communications Microdyne (USA)
172198-1 Northrop Grumman Systems Corp Dba Northrop Grumman Systems Corp (USA)
SM-77 Rf Micro Devices, Inc. (USA)
643352-002 Watkins-Johnson Co (USA)
B4028276-2 Department of the Army Hq United States Army Communications Research and Development Command (USA)
M6E Watkins-Johnson Co (USA)
643352-002 Watkins Johnson Co (USA)
FC-200R Smiths Interconnect Americas, Inc. (USA)
40-001006-01 Interlink Communications Inc (USA)
Related Parts
5930-00-202-0878INTERCHANGEABLE
SWITCH,SENSITIVE
093444
2840-01-026-7087INTERCHANGEABLE
SEAL,AIR,AIRCRAFT GAS TURBINE EN
4330-01-049-5985INTERCHANGEABLE
BARRIER,THERMAL AIR
20-1057
5895-01-155-0751INTERCHANGEABLE
MIXER STAGE,FREQUENCY
292125P1
5995-01-451-9310INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
1721981
4820-01-724-4506INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
201057

Frequently Asked Questions

What is NSN 5985-00-459-5586?

NSN 5985-00-459-5586 is a Mixer,crystal,coaxial, manufactured by L-3 Communications Microdyne, classified under FSC 5985 (No Item Name Available). Status: active.

What are the part numbers for NSN 5985-00-459-5586?

NSN 5985-00-459-5586 has 9 cross-referenced part numbers: 201-057 (L-3 Communications Microdyne), 172198-1 (Northrop Grumman Systems Corp Dba Northrop Grumman Systems Corp), SM-77 (Rf Micro Devices, Inc.), 643352-002 (Watkins-Johnson Co), B4028276-2 (Department of the Army Hq United States Army Communications Research and Development Command) and 4 more.

What NSN replaces 5985-00-459-5586?

There are 6 known substitutes for 5985-00-459-5586: 5930-00-202-0878, 2840-01-026-7087, 4330-01-049-5985 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 201-057?

Key specifications for 201-057: Overall Height: 0.375 INCHES NOMINAL IN; Frequency Range Rating: +5.0 TO 500.0 MEGAHERTZ; FSC Application Data: ANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT; Special Features: EIGHT PINS FOR PLUG MOUNTING. 9 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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