PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

31004Attenuator,variable

L3harris Technologies, Inc. Div Space and Airborne Systems · NSN 5985-00-727-3590 · FSC 5985 · No Item Name Available
Verified by PartsTable
NSN 5985-00-727-3590 — this item is cataloged by the U.S. Government under National Stock Number 5985-00-727-3590. Primary manufacturer part number: 31004.
Features
  • Attenuator,variable — FSC 5985
  • Application Design: TRANSMISSION LINE
  • Center to Center Distance Between Mounting Facilities Parallel to Length: 2.750 INCHES NOMINAL IN
  • Step Position Quantity: 3
  • Power Rating: 5.0 WATTS AVERAGE
  • Adjustment Device Type and Quantity: 3 PUSHBUTTON
  • Overall Attenuation Range in Decibels: +0.0 TO 18.0
  • Attenuation Per Step in Decibels: 6.0
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Attenuator,variable, cataloged under National Stock Number 5985-00-727-3590, 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 L3harris Technologies, Inc. Div Space and Airborne Systems. Government technical data includes 20 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5985-00-727-3590
Primary Part Number31004
Item NameAttenuator,variable
FSC / FSG5985 / 59 — No Item Name Available
ManufacturerL3harris Technologies, Inc. Div Space and Airborne Systems
StatusACTIVE
Application DesignTRANSMISSION LINE
Center to Center Distance Between Mounting Facilities Parallel to Length2.750 INCHES NOMINAL IN
Step Position Quantity3
Power Rating5.0 WATTS AVERAGE
Adjustment Device Type and Quantity3 PUSHBUTTON
Overall Attenuation Range in Decibels+0.0 TO 18.0
Attenuation Per Step in Decibels6.0
Attenuation Variation MethodSTEPPED
Impedance Rating in Ohms600.0 INPUT-OUTPUT
Terminal Type and Quantity14 TAB, SOLDER LUG
Segment Attenuation Accuracy in Decibels-0.15 TO 0.16 AND -0.17 TO 0.17 AND -0.17 TO 0.18
Mounting Facility PatternFOUR POSITION RECTANGULAR
Frequency Range0.000 KILOHERTZ MINIMUM AND 60.000 KILOHERTZ MAXIMUM
Mounting Facility Type and Quantity4 UNTHREADED HOLE(S)
Attenuation Accuracy Reference Frequency60.0 KILOHERTZ
Overall Attenuation Accuracy in Decibels-0.50 TO 0.50
Segment Attenuation Range in Decibels+0.00 TO 6.00 AND +6.00 TO 12.00 AND +12.00 TO 18.00
Unthreaded Mounting Hole Diameter0.144 INCHES NOMINAL IN
Body StyleCOAXIAL TYPE
Center to Center Distance Between Mounting Facilities Parallel to Width1.562 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5120-00-107-520831004 INTERCHANGEABLE
Hammer,hand
Garland Manufacturing Co Dba Garland Manufacturing Co Div Uhmw Polyethylene Division
2530-00-140-366169861 INTERCHANGEABLE
Cylinder Assembly,hydraulic Brak
Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp.
5940-00-197-867431005TB INTERCHANGEABLE
Terminal,lug
Abb Installation Products Inc
6145-00-504-080931004-1 INTERCHANGEABLE
Wire,electrical
Raytheon Company Dba Raytheon
5315-00-514-060669861 INTERCHANGEABLE
Pin,hollow
Textron Lycoming Inc Williamsport Plant
3110-00-541-892531004 INTERCHANGEABLE
Bearing,ball,annular
Micro Computer Consultants Inc Quality Accessories and Instruments Div
5133-00-841-870331004 INTERCHANGEABLE
Drill,twist
Precision Twist Drill Co
5920-01-228-63397-482-000021 INTERCHANGEABLE
Fuse
Grove U.s. Llc Dba Grove Us Llc
6660-01-250-397831004 INTERCHANGEABLE
Transmitter,wind Direction and S
Belfort Instrument Company
5930-01-339-27473100-4 INTERCHANGEABLE
Switch,thermostatic
Honeywell International Inc. Dba Honeywell Div Sensing and Control
Cross-Reference Index
Part NumberManufacturer
31004 PRIMARY L3harris Technologies, Inc. Div Space and Airborne Systems (USA)
6986-1 Meggitt (new Hampshire), Inc (USA)
Related Parts
5120-00-107-5208INTERCHANGEABLE
HAMMER,HAND
31004
2530-00-140-3661INTERCHANGEABLE
CYLINDER ASSEMBLY,HYDRAULIC BRAK
69861
5940-00-197-8674INTERCHANGEABLE
TERMINAL,LUG
31005TB
6145-00-504-0809INTERCHANGEABLE
WIRE,ELECTRICAL
31004-1
5315-00-514-0606INTERCHANGEABLE
PIN,HOLLOW
69861
3110-00-541-8925INTERCHANGEABLE
BEARING,BALL,ANNULAR
31004
5133-00-841-8703INTERCHANGEABLE
DRILL,TWIST
31004
5920-01-228-6339INTERCHANGEABLE
FUSE
7-482-000021
6660-01-250-3978INTERCHANGEABLE
TRANSMITTER,WIND DIRECTION AND S
31004
5930-01-339-2747INTERCHANGEABLE
SWITCH,THERMOSTATIC
3100-4
5340-01-374-7533INTERCHANGEABLE
KIT PALM BUTTON ASS
31004
4710-01-391-0842INTERCHANGEABLE
TUBE,METALLIC
69861

Frequently Asked Questions

What is NSN 5985-00-727-3590?

NSN 5985-00-727-3590 is a Attenuator,variable, manufactured by L3harris Technologies, Inc. Div Space and Airborne Systems, classified under FSC 5985 (No Item Name Available). Status: active.

What are the part numbers for NSN 5985-00-727-3590?

NSN 5985-00-727-3590 has 2 cross-referenced part numbers: 31004 (L3harris Technologies, Inc. Div Space and Airborne Systems), 6986-1 (Meggitt (new Hampshire), Inc).

What NSN replaces 5985-00-727-3590?

There are 12 known substitutes for 5985-00-727-3590: 5120-00-107-5208, 2530-00-140-3661, 5940-00-197-8674 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 31004?

Key specifications for 31004: Application Design: TRANSMISSION LINE; Overall Length: 3.250 INCHES NOMINAL IN; Center to Center Distance Between Mounting Facilities Parallel to Length: 2.750 INCHES NOMINAL IN; Overall Width: 2.125 INCHES NOMINAL IN. 23 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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