PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

409-01Coupler,antenna

Cobham Electronic Systems Sigint Inc. Dba Cobham Defense Electronics · NSN 5985-01-575-5218 · FSC 5985 · No Item Name Available
Verified by PartsTable
NSN 5985-01-575-5218 — this item is cataloged by the U.S. Government under National Stock Number 5985-01-575-5218. Primary manufacturer part number: 409-01.
Features
  • Coupler,antenna — FSC 5985
  • Frequency Rating: 48.0 HERTZ MINIMUM AND 63.0 HERTZ MAXIMUM
  • Voltage Rating: 115.0 VOLTS MINIMUM AND 230.0 VOLTS MAXIMUM
  • 1 verified cross-reference
  • Primary manufacturer: Cobham Electronic Systems Sigint Inc. Dba Cobham Defense Electronics
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Coupler,antenna, cataloged under National Stock Number 5985-01-575-5218, 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 Cobham Electronic Systems Sigint Inc. Dba Cobham Defense Electronics. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5985-01-575-5218
Primary Part Number409-01
Item NameCoupler,antenna
FSC / FSG5985 / 59 — No Item Name Available
ManufacturerCobham Electronic Systems Sigint Inc. Dba Cobham Defense Electronics
StatusACTIVE
Frequency Rating48.0 HERTZ MINIMUM AND 63.0 HERTZ MAXIMUM
Voltage Rating115.0 VOLTS MINIMUM AND 230.0 VOLTS MAXIMUM
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5935-00-295-31295262 INTERCHANGEABLE
Connector,receptacle,electrical
Hubbell Incorporated (delaware) Dba Wiring Device-Kellems Division
5940-00-552-94351106-03 INTERCHANGEABLE
Terminal,stud
Concord Electronics, Inc.
6150-00-864-143440901 INTERCHANGEABLE
Cable Assembly,power,electrical
Unison Industries Llc
5935-01-050-3915103000A01F030 INTERCHANGEABLE
Connector,plug,electrical
Woodhead, Lp Dba Woodhead Div Integrated Products Group
7320-01-620-0220 INTERCHANGEABLE
Food Cutter,electric
Cross-Reference Index
Part NumberManufacturer
409-01 PRIMARY Cobham Electronic Systems Sigint Inc. Dba Cobham Defense Electronics (USA)
Related Parts
5935-00-295-3129INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
5262
5940-00-552-9435INTERCHANGEABLE
TERMINAL,STUD
1106-03
6150-00-864-1434INTERCHANGEABLE
CABLE ASSEMBLY,POWER,ELECTRICAL
40901
5935-01-050-3915INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
103000A01F030
7320-01-620-0220INTERCHANGEABLE
FOOD CUTTER,ELECTRIC

Frequently Asked Questions

What is NSN 5985-01-575-5218?

NSN 5985-01-575-5218 is a Coupler,antenna, manufactured by Cobham Electronic Systems Sigint Inc. Dba Cobham Defense Electronics, classified under FSC 5985 (No Item Name Available). Status: active.

What are the part numbers for NSN 5985-01-575-5218?

NSN 5985-01-575-5218 has 1 cross-referenced part number: 409-01 (Cobham Electronic Systems Sigint Inc. Dba Cobham Defense Electronics).

What NSN replaces 5985-01-575-5218?

There are 5 known substitutes for 5985-01-575-5218: 5935-00-295-3129, 5940-00-552-9435, 6150-00-864-1434 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 409-01?

Key specifications for 409-01: Frequency Rating: 48.0 HERTZ MINIMUM AND 63.0 HERTZ MAXIMUM; Part Name Assigned by Controlling Agency: MULTI-COUPLER; Special Features: THE MODEL 409 VLF-HF MULTICOUPLER IS A COMPACT BROADBAND UNIT WHICH PERMITS UP TO 16 RECEIVERS OR EIGHT RECEIVERS TO BE COUPLED TO A SINGLE ANTENNA; A LOW NOISE INPUT AMPLIFIER PROVIDES A NOMINAL GAIN OF 5DB AND ACHIEVES A WIDE DYNAMIC RANGE OVER A BROAD BAND COVERING THE VLF AND HF BANDS; INPUT CIRCUITRY PROVIDES PROTECTION UNDER HIGH AMBIENT RF FIELD CONDITIONS OR FROM NEARBY LIGHTNING STRIKES DB; Voltage Rating: 115.0 VOLTS MINIMUM AND 230.0 VOLTS MAXIMUM. 4 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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