PartsTable TECHNICAL DATA SHEET
NSN 5985-01-044-9999Government record, cited

Line Section, Radio Frequency Tra5985-01-044-9999

NSN 5985-01-044-9999 · NIIN 010449999 · Part number 1143AS203
Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier · FSC 5985 — Antennas, Waveguides, and Related Equipment · FSG 59 — Electrical and Electronic Equipment Components · CAGE 30003
Government record, cited
NSN 5985-01-044-9999 — this item is cataloged by the U.S. Government under National Stock Number 5985-01-044-9999. Manufacturer of record part number: 1143AS203.
Also searched as  5985-01-044-9999 · 5985010449999 · NIIN 010449999 · 01-044-9999 · FSC 5985 Antennas, Waveguides, and Related Equipment · CAGE 30003 · 1143AS203
Nearby stock numbers  ·
Features
  • Line Section,radio Frequency Tra — FSC 5985
  • FSC Application Data: ANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT
  • Overall Diameter: 0.312 INCHES NOMINAL IN
  • Impedance Rating in Ohms: 50.0 NOMINAL
  • Material: COPPER ALLOY AND STEEL CORROSION RESISTING
  • 1 manufacturer part number on file
  • Manufacturer of record: Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier
Identification
  • NSN: 5985-01-044-9999
  • NIIN: 010449999
  • FSC: 5985 — Antennas, Waveguides, and Related Equipment
  • FSG: 59 — Electrical and Electronic Equipment Components
  • Primary part number: 1143AS203
  • Manufacturer: Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier
General Description

The Line Section,radio Frequency Tra, cataloged under National Stock Number 5985-01-044-9999, is classified within Federal Supply Class 5985 (Antennas, Waveguides, and Related Equipment) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5985-01-044-9999
Primary Part Number1143AS203
Item NameLine Section,radio Frequency Tra
FSC / FSG5985 / 59 — Antennas, Waveguides, and Related Equipment
ManufacturerNaval Air Systems Command Managed Original Design Activity Not Material/parts Supplier
StatusACTIVE
FSC Application DataANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT
Overall Diameter0.312 INCHES NOMINAL IN
Impedance Rating in Ohms50.0 NOMINAL
MaterialCOPPER ALLOY AND STEEL CORROSION RESISTING
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL B — Remove Demilitarization Key Points
HazardPossible hazard — SDS may be required (DLA HMIC P)
Criticality CodeX
Cross-Reference Index
Part NumberManufacturer
1143AS203 PRIMARY Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA)
No interchangeability data on file.
Other items in FSC 5985 — Antennas, Waveguides, and Related Equipment
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5985-00-001-1854
ANTENNA
5985-00-001-1862
WAVEGUIDE ASSEMBLY
5985-00-001-1869
WAVEGUIDE ASSEMBLY
5985-00-001-1870
WAVEGUIDE ASSEMBLY
5985-00-001-1871
WAVEGUIDE ASSEMBLY
5985-00-001-1874
WAVEGUIDE ASSEMBLY
5985-00-001-1875
ADAPTER,WAVEGUIDE
5985-00-001-1876
WAVEGUIDE ASSEMBLY

Frequently Asked Questions

What is NSN 5985-01-044-9999?

NSN 5985-01-044-9999 is a Line Section,radio Frequency Tra, manufactured by Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.

What part numbers are listed for NSN 5985-01-044-9999?

NSN 5985-01-044-9999 has 1 manufacturer part number on file: 1143AS203 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier).

What are the specifications of 1143AS203?

Key specifications for 1143AS203: FSC Application Data: ANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT; Overall Diameter: 0.312 INCHES NOMINAL IN; Overall Length: 23.630 INCHES NOMINAL IN; Impedance Rating in Ohms: 50.0 NOMINAL. 4 specifications are documented in the U.S. Government catalog.

Is NSN 5985-01-044-9999 hazardous material?

Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.

What is the DEMIL code for NSN 5985-01-044-9999?

NSN 5985-01-044-9999 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.

Sources

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.

✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.
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