PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

SMD604357Attenuator,fixed

Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir · NSN 5985-00-175-0350 · FSC 5985 · No Item Name Available
Verified by PartsTable
NSN 5985-00-175-0350 — this item is cataloged by the U.S. Government under National Stock Number 5985-00-175-0350. Primary manufacturer part number: SMD604357.
Features
  • Attenuator,fixed — FSC 5985
  • Power Rating: 5.0 KILOWATTS PEAK
  • Application Design: TRANSMISSION LINE
  • Overall Diameter: 2.500 INCHES NOMINAL IN
  • Mounting Method: CONNECTOR
  • Input Impedance Rating in Ohms: 50.0
  • Frequency Range: 990.000 MEGAHERTZ MINIMUM AND 1.130 GIGAHERTZ MAXIMUM
  • Coaxial Connector Series Designation: N
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Attenuator,fixed, cataloged under National Stock Number 5985-00-175-0350, 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 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 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
NSN5985-00-175-0350
Primary Part NumberSMD604357
Item NameAttenuator,fixed
FSC / FSG5985 / 59 — No Item Name Available
ManufacturerUs Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
StatusACTIVE
Power Rating5.0 KILOWATTS PEAK
Application DesignTRANSMISSION LINE
Overall Diameter2.500 INCHES NOMINAL IN
Mounting MethodCONNECTOR
Input Impedance Rating in Ohms50.0
Frequency Range990.000 MEGAHERTZ MINIMUM AND 1.130 GIGAHERTZ MAXIMUM
Coaxial Connector Series DesignationN
Body StyleROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACE
Voltage Standing Wave Ratio Frequency Range+0.99 TO 1.13 GIGAHERTZ
Operating Temp Range-55.0 TO 71.0 CELSIUS DEGC
Rf Signal Attenuation in Decibels12.0
Connection Type Per FunctionFEMALE OUTPUT AND MALE INPUT
Attenuation Accuracy in Decibels-1.00 TO 1.00
Voltage Standing Wave Ratio1.25
Terminal Type and Quantity2 CONNECTOR
Output Impedance Rating in Ohms50.0
Surface TreatmentENAMEL BODY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
3110-00-100-8542D24 INTERCHANGEABLE
Bearing,ball,thrust
Gwilliam Company, Inc. Div Ball & Roller Bearing Division
6625-00-142-8717629 INTERCHANGEABLE
Lead,test
Halsit Holdings Llc Div Halsit Holdings, Llc Dba Abbatron
5999-00-224-58649177 INTERCHANGEABLE
Contact,electrical
Telemechanics Inc
3110-00-227-4773 INTERCHANGEABLE
Bearing,ball,annular
3030-00-294-7404629 INTERCHANGEABLE
Belt,v
Gates Corporation
5330-00-391-83699177 INTERCHANGEABLE
Gasket
Leslie Controls, Inc. Dba Leslie Controls Inc
5340-00-463-14389177 INTERCHANGEABLE
Retainer,helical Compression Spr
Mission Systems Orchard Park Inc
5930-00-611-54609177 INTERCHANGEABLE
Switch,sensitive
Haydon Kerk Motion Solutions, Inc. Dba Haydon Kerk Motion Solutions Inc Div Haydon Kerk
5940-00-617-21319072046 INTERCHANGEABLE
Terminal,lug
Us Army Aviation and Missile Command
3030-00-716-7894 INTERCHANGEABLE
Belt,positive Drive
Cross-Reference Index
Part NumberManufacturer
TB-C-42 Microlab/fxr Llc (USA)
629 Spectrum Control Inc Div Weinschel (USA)
9177 Spectrum Control Inc Div Weinschel (USA)
SMD604357 PRIMARY Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir (USA)
Related Parts
3110-00-100-8542INTERCHANGEABLE
BEARING,BALL,THRUST
D24
6625-00-142-8717INTERCHANGEABLE
LEAD,TEST
629
5999-00-224-5864INTERCHANGEABLE
CONTACT,ELECTRICAL
9177
3110-00-227-4773INTERCHANGEABLE
BEARING,BALL,ANNULAR
3030-00-294-7404INTERCHANGEABLE
BELT,V
629
5330-00-391-8369INTERCHANGEABLE
GASKET
9177
5340-00-463-1438INTERCHANGEABLE
RETAINER,HELICAL COMPRESSION SPR
9177
5930-00-611-5460INTERCHANGEABLE
SWITCH,SENSITIVE
9177
5940-00-617-2131INTERCHANGEABLE
TERMINAL,LUG
9072046
3030-00-716-7894INTERCHANGEABLE
BELT,POSITIVE DRIVE
6220-00-929-8612INTERCHANGEABLE
STOP LIGHT-TAILLIGHT,VEHICULAR
50502
4330-00-976-6095INTERCHANGEABLE
FILTER,FLUID

Frequently Asked Questions

What is NSN 5985-00-175-0350?

NSN 5985-00-175-0350 is a Attenuator,fixed, 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 5985-00-175-0350?

NSN 5985-00-175-0350 has 4 cross-referenced part numbers: TB-C-42 (Microlab/fxr Llc), 629 (Spectrum Control Inc Div Weinschel), 9177 (Spectrum Control Inc Div Weinschel), SMD604357 (Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir).

What NSN replaces 5985-00-175-0350?

There are 12 known substitutes for 5985-00-175-0350: 3110-00-100-8542, 6625-00-142-8717, 5999-00-224-5864 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of SMD604357?

Key specifications for SMD604357: Power Rating: 5.0 KILOWATTS PEAK; Application Design: TRANSMISSION LINE; Overall Length: 6.620 INCHES NOMINAL IN; Overall Diameter: 2.500 INCHES NOMINAL IN. 18 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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