PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

SMA571571-1Attenuator,variable

Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir · NSN 5985-00-229-7988 · FSC 5985 · No Item Name Available
Verified by PartsTable
NSN 5985-00-229-7988 — this item is cataloged by the U.S. Government under National Stock Number 5985-00-229-7988. Primary manufacturer part number: SMA571571-1.
Features
  • Attenuator,variable — FSC 5985
  • Application Design: WAVEGUIDE
  • Adjustment Device Type and Quantity: 1 KNOB
  • Scale Linearity: LINEAR
  • Voltage Standing Wave Ratio: 1.20
  • Attenuation Variation Method: CONTINUOUS
  • Power Rating: 2.0 WATTS AVERAGE
  • Mounting Facility Pattern: FOUR POSITION RECTANGULAR
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Attenuator,variable, cataloged under National Stock Number 5985-00-229-7988, 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 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 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
NSN5985-00-229-7988
Primary Part NumberSMA571571-1
Item NameAttenuator,variable
FSC / FSG5985 / 59 — No Item Name Available
ManufacturerUs Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
StatusACTIVE
Application DesignWAVEGUIDE
Adjustment Device Type and Quantity1 KNOB
Scale LinearityLINEAR
Voltage Standing Wave Ratio1.20
Attenuation Variation MethodCONTINUOUS
Power Rating2.0 WATTS AVERAGE
Mounting Facility PatternFOUR POSITION RECTANGULAR
Overall Attenuation Range in Decibels+0.0 TO 20.0
Mounting Facility Type and Quantity8 UNTHREADED HOLE(S)
Operating Temp Range-25.0 TO 150.0 FAHRENHEIT DEGF
Body StyleWAVEGUIDE TYPE
Insertion Loss at Minimum Attenuation in Maximum Decibels0.5
Center to Center Distance Between Mounting Facilities Parallel to Height1.352 INCHES NOMINAL IN
Terminal Type and Quantity2 FLANGE
Frequency Range7.900 GIGAHERTZ MINIMUM AND 8.400 GIGAHERTZ MAXIMUM
Unthreaded Mounting Hole Diameter0.169 INCHES NOMINAL IN
Center to Center Distance Between Mounting Facilities Parallel to Width1.474 INCHES NOMINAL IN
Waveguide Flange TypeCHOKE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5930-00-102-595150145 INTERCHANGEABLE
Capillary Bulb Clam
Wells Mfg Co
3455-00-455-5435 INTERCHANGEABLE
File,rotary
5330-00-641-097821795D INTERCHANGEABLE
Seal,plain Encased
Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/
5940-00-688-6010 INTERCHANGEABLE
Terminal,lug
4820-01-232-474830145 INTERCHANGEABLE
Valve,expansion
Wilshire Corp
6150-01-471-720150145 INTERCHANGEABLE
Lead,electrical
American Apex Corporation
Cross-Reference Index
Part NumberManufacturer
50145 Waveline Inc (USA)
SMA571571-1 PRIMARY Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir (USA)
Related Parts
5930-00-102-5951INTERCHANGEABLE
CAPILLARY BULB CLAM
50145
3455-00-455-5435INTERCHANGEABLE
FILE,ROTARY
5330-00-641-0978INTERCHANGEABLE
SEAL,PLAIN ENCASED
21795D
5940-00-688-6010INTERCHANGEABLE
TERMINAL,LUG
4820-01-232-4748INTERCHANGEABLE
VALVE,EXPANSION
30145
6150-01-471-7201INTERCHANGEABLE
LEAD,ELECTRICAL
50145

Frequently Asked Questions

What is NSN 5985-00-229-7988?

NSN 5985-00-229-7988 is a Attenuator,variable, 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 5985-00-229-7988?

NSN 5985-00-229-7988 has 2 cross-referenced part numbers: 50145 (Waveline Inc), SMA571571-1 (Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir).

What NSN replaces 5985-00-229-7988?

There are 6 known substitutes for 5985-00-229-7988: 5930-00-102-5951, 3455-00-455-5435, 5330-00-641-0978 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of SMA571571-1?

Key specifications for SMA571571-1: Application Design: WAVEGUIDE; Adjustment Device Type and Quantity: 1 KNOB; Scale Linearity: LINEAR; Voltage Standing Wave Ratio: 1.20. 21 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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