PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20851Base,antenna Support

Antenna Research Associates, Incorporated · NSN 5985-01-384-2540 · FSC 5985 · No Item Name Available
Verified by PartsTable
NSN 5985-01-384-2540 — this item is cataloged by the U.S. Government under National Stock Number 5985-01-384-2540. Primary manufacturer part number: 20851.
Features
  • Base,antenna Support — FSC 5985
  • Material: ALUMINUM ALLOY
  • Mounting Method: PIN(S)
  • Basic Shape Style: TRIANGLE
  • 1 verified cross-reference
  • Primary manufacturer: Antenna Research Associates, Incorporated
Applications
  • Applications requiring Aluminum Alloy construction
General Description

The Base,antenna Support, cataloged under National Stock Number 5985-01-384-2540, 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 Antenna Research Associates, Incorporated. Government technical data includes 3 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. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5985-01-384-2540
Primary Part Number20851
Item NameBase,antenna Support
FSC / FSG5985 / 59 — No Item Name Available
ManufacturerAntenna Research Associates, Incorporated
StatusACTIVE
MaterialALUMINUM ALLOY
Mounting MethodPIN(S)
Basic Shape StyleTRIANGLE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5310-00-227-657062401611 INTERCHANGEABLE
Washer,key
Thales Components Corp Div Thales Components Corporation
5950-00-458-6380SM-D-752390 INTERCHANGEABLE
Transformer,radio Frequency
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5935-00-552-64332021064 INTERCHANGEABLE
Connector,plug,electrical
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5940-01-016-4048 INTERCHANGEABLE
Terminal,stud
3020-01-151-865820851 INTERCHANGEABLE
Gear
Koehring Cranes, Inc Dba Terex Cranes Div Waverly Operations
5945-01-289-061720851 INTERCHANGEABLE
Relay,electromagnetic
Electro Impulse Laboratory Inc Dba Electro Impulse Inc
Cross-Reference Index
Part NumberManufacturer
20851 PRIMARY Antenna Research Associates, Incorporated (USA)
Related Parts
5310-00-227-6570INTERCHANGEABLE
WASHER,KEY
62401611
5950-00-458-6380INTERCHANGEABLE
TRANSFORMER,RADIO FREQUENCY
SM-D-752390
5935-00-552-6433INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
2021064
5940-01-016-4048INTERCHANGEABLE
TERMINAL,STUD
3020-01-151-8658INTERCHANGEABLE
GEAR
20851
5945-01-289-0617INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
20851

Frequently Asked Questions

What is NSN 5985-01-384-2540?

NSN 5985-01-384-2540 is a Base,antenna Support, manufactured by Antenna Research Associates, Incorporated, classified under FSC 5985 (No Item Name Available). Status: active.

What are the part numbers for NSN 5985-01-384-2540?

NSN 5985-01-384-2540 has 1 cross-referenced part number: 20851 (Antenna Research Associates, Incorporated).

What NSN replaces 5985-01-384-2540?

There are 6 known substitutes for 5985-01-384-2540: 5310-00-227-6570, 5950-00-458-6380, 5935-00-552-6433 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 20851?

Key specifications for 20851: Material: ALUMINUM ALLOY; End Item Identification: CDFL-MLA-115(V); CDFL-MLA-324; Mounting Method: PIN(S); Basic Shape Style: TRIANGLE. 7 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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