PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

DE-A-2939Attenuator,variable

U S Dept of Transportation Federal Aviation Administration · NSN 5985-01-309-9751 · FSC 5985 · No Item Name Available
Verified by PartsTable
NSN 5985-01-309-9751 — this item is cataloged by the U.S. Government under National Stock Number 5985-01-309-9751. Primary manufacturer part number: DE-A-2939.
Features
  • Attenuator,variable — FSC 5985
  • 2 verified cross-references
  • Primary manufacturer: U S Dept of Transportation Federal Aviation Administration
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Attenuator,variable, cataloged under National Stock Number 5985-01-309-9751, 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 U S Dept of Transportation Federal Aviation Administration. 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
NSN5985-01-309-9751
Primary Part NumberDE-A-2939
Item NameAttenuator,variable
FSC / FSG5985 / 59 — No Item Name Available
ManufacturerU S Dept of Transportation Federal Aviation Administration
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5905-00-058-1765 INTERCHANGEABLE
Resistor,fixed,wire Wound,induct
5985-00-239-72752135487G1 INTERCHANGEABLE
Attenuator,fixed
L3harris Technologies, Inc.
5935-00-341-0063 INTERCHANGEABLE
Connector,plug,electrical
2805-00-375-00082C7743 INTERCHANGEABLE
Ring Set
Hastings Manufacturing Co Div Hastings Manufacturing Company
5305-00-383-9275 INTERCHANGEABLE
Screw
4720-00-393-39074333 INTERCHANGEABLE
Hose Assembly,nonmetallic
Thomas C. Wilson, Llc Dba Thomas C Wilson Inc
5895-00-494-66414333 INTERCHANGEABLE
Installation Kit,electronic Equi
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5330-00-501-9477Q4333-366Y INTERCHANGEABLE
Packing,preformed
Minnesota Rubber Co
6680-00-852-02634333 INTERCHANGEABLE
Detector,low Oil Le
Invensys Systems, Inc. Dba Schneider Electric
5305-00-993-43134333U INTERCHANGEABLE
Screw,shoulder
Roller Bearing Co of America, Inc Div Pic Design
Cross-Reference Index
Part NumberManufacturer
DE-A-2939 PRIMARY U S Dept of Transportation Federal Aviation Administration (USA)
4333 Scanwell Laboratories Inc (USA)
Related Parts
5905-00-058-1765INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND,INDUCT
5985-00-239-7275INTERCHANGEABLE
ATTENUATOR,FIXED
2135487G1
5935-00-341-0063INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
2805-00-375-0008INTERCHANGEABLE
RING SET
2C7743
5305-00-383-9275INTERCHANGEABLE
SCREW
4720-00-393-3907INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
4333
5895-00-494-6641INTERCHANGEABLE
INSTALLATION KIT,ELECTRONIC EQUI
4333
5330-00-501-9477INTERCHANGEABLE
PACKING,PREFORMED
Q4333-366Y
6680-00-852-0263INTERCHANGEABLE
DETECTOR,LOW OIL LE
4333
5305-00-993-4313INTERCHANGEABLE
SCREW,SHOULDER
4333U
5820-01-011-0305INTERCHANGEABLE
CARRING CASE,RADIO
4540-01-188-4549INTERCHANGEABLE
HEATER,SEARCHLIGHT
4333

Frequently Asked Questions

What is NSN 5985-01-309-9751?

NSN 5985-01-309-9751 is a Attenuator,variable, manufactured by U S Dept of Transportation Federal Aviation Administration, classified under FSC 5985 (No Item Name Available). Status: active.

What are the part numbers for NSN 5985-01-309-9751?

NSN 5985-01-309-9751 has 2 cross-referenced part numbers: DE-A-2939 (U S Dept of Transportation Federal Aviation Administration), 4333 (Scanwell Laboratories Inc).

What NSN replaces 5985-01-309-9751?

There are 12 known substitutes for 5985-01-309-9751: 5905-00-058-1765, 5985-00-239-7275, 5935-00-341-0063 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of DE-A-2939?

Key specifications for DE-A-2939: End Item Identification: INSTRUMENT LANDING SYSTEM,LOCAL GS BEACON,FA8000. 1 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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