PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1209052-201Coupler,transmission Line

Lockheed Martin Corporation Div Rms · NSN 5985-01-369-6904 · FSC 5985 · No Item Name Available
Verified by PartsTable
NSN 5985-01-369-6904 — this item is cataloged by the U.S. Government under National Stock Number 5985-01-369-6904. Primary manufacturer part number: 1209052-201.
Features
  • Coupler,transmission Line — FSC 5985
  • Mounting Configuration: TWO 0.104 IN. DIA MTG HOLES SPACED 1.068 IN. APART IN
  • Material: ALUMINUM ALLOY
  • Input Impedance Rating in Ohms: 50.0
  • Output Impedance Rating in Ohms: 50.0
  • Unit Type: TRANSMISSION LINE
  • Radio Frequency Rating: 1.0 GIGAHERTZ MINIMUM AND 2.0 GIGAHERTZ MAXIMUM
  • 3 verified cross-references
Applications
  • Applications requiring Aluminum Alloy construction
General Description

The Coupler,transmission Line, cataloged under National Stock Number 5985-01-369-6904, 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 Lockheed Martin Corporation Div Rms. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 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
NSN5985-01-369-6904
Primary Part Number1209052-201
Item NameCoupler,transmission Line
FSC / FSG5985 / 59 — No Item Name Available
ManufacturerLockheed Martin Corporation Div Rms
StatusACTIVE
Mounting ConfigurationTWO 0.104 IN. DIA MTG HOLES SPACED 1.068 IN. APART IN
MaterialALUMINUM ALLOY
Input Impedance Rating in Ohms50.0
Output Impedance Rating in Ohms50.0
Unit TypeTRANSMISSION LINE
Radio Frequency Rating1.0 GIGAHERTZ MINIMUM AND 2.0 GIGAHERTZ MAXIMUM
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
3120-00-213-0734 INTERCHANGEABLE
Stave,bearing
5999-00-216-8769 INTERCHANGEABLE
Contact,electrical
3455-00-231-348410350 INTERCHANGEABLE
Cutter,milling,plain
Niagara Cutter Inc
5365-00-574-080830142 INTERCHANGEABLE
Shim
Danuser Machine Co
4820-01-064-5535 INTERCHANGEABLE
Valve,regulating,fluid Pressure
4820-01-081-797730142 INTERCHANGEABLE
Disc,special
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
5998-01-248-0450 INTERCHANGEABLE
Circuit Card Assembly
4820-01-370-5443U301391201 INTERCHANGEABLE
Valve,regulating,fluid Pressure
Leslie Controls, Inc. Dba Leslie Controls Inc
6685-01-391-939230142 INTERCHANGEABLE
Regulator,temperature
Electro Impulse Laboratory Inc Dba Electro Impulse Inc
4820-01-507-079530003-010 P/N 27DC13M-U20/S4 INTERCHANGEABLE
Disk,valve
Curtiss-Wright Flow Control Corporation Dba Farris Engineering Div Curtiss-Wright Valves Division- Farris
Cross-Reference Index
Part NumberManufacturer
1209052-201 Lockheed Martin Corporation Div Rms - Mitchel Field (USA)
1209052-201 PRIMARY Lockheed Martin Corporation Div Rms (USA)
30142 Narda Holdings, Inc. Dba Narda-Miteq Div Narda-Miteq (USA)
Related Parts
3120-00-213-0734INTERCHANGEABLE
STAVE,BEARING
5999-00-216-8769INTERCHANGEABLE
CONTACT,ELECTRICAL
3455-00-231-3484INTERCHANGEABLE
CUTTER,MILLING,PLAIN
10350
5365-00-574-0808INTERCHANGEABLE
SHIM
30142
4820-01-064-5535INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
4820-01-081-7977INTERCHANGEABLE
DISC,SPECIAL
30142
5998-01-248-0450INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
4820-01-370-5443INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
U301391201
6685-01-391-9392INTERCHANGEABLE
REGULATOR,TEMPERATURE
30142
4820-01-507-0795INTERCHANGEABLE
DISK,VALVE
30003-010 P/N 27DC13M-U20/S4
5820-01-532-7246INTERCHANGEABLE
TELECONFERENCE SYSTEM
3014-2
4730-01-541-3204INTERCHANGEABLE
CAP,HOSE

Frequently Asked Questions

What is NSN 5985-01-369-6904?

NSN 5985-01-369-6904 is a Coupler,transmission Line, manufactured by Lockheed Martin Corporation Div Rms, classified under FSC 5985 (No Item Name Available). Status: active.

What are the part numbers for NSN 5985-01-369-6904?

NSN 5985-01-369-6904 has 3 cross-referenced part numbers: 1209052-201 (Lockheed Martin Corporation Div Rms - Mitchel Field), 1209052-201 (Lockheed Martin Corporation Div Rms), 30142 (Narda Holdings, Inc. Dba Narda-Miteq Div Narda-Miteq).

What NSN replaces 5985-01-369-6904?

There are 12 known substitutes for 5985-01-369-6904: 3120-00-213-0734, 5999-00-216-8769, 3455-00-231-3484 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1209052-201?

Key specifications for 1209052-201: Overall Width: 1.300 INCHES NOMINAL IN; Overall Length: 1.740 INCHES NOMINAL IN; Mounting Configuration: TWO 0.104 IN. DIA MTG HOLES SPACED 1.068 IN. APART IN; Material: ALUMINUM ALLOY. 10 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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