The Antenna Element, cataloged under National Stock Number 5985-01-218-9940, 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 Lockheed Martin Corporation Div Rms. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-218-9940 |
| Primary Part Number | E211025-1 |
| Item Name | Antenna Element |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Lockheed Martin Corporation Div Rms |
| Status | ACTIVE |
| Design Type | MONOPOLE SINGLE ANTENNA ELEMENT |
| Overall Diameter | 0.650 INCHES NOMINAL IN |
| Features Provided | PRESSURIZED AND RETRACTABLE |
| Frequency Rating | 0.001 MEGAHERTZ MINIMUM AND 220.000 MEGAHERTZ MAXIMUM SINGLE ANTENNA ELEMENT |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| E211025-1 PRIMARY | Lockheed Martin Corporation Div Rms (USA) |
| AS-3435 | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
| Reference | Meaning |
|---|---|
| E-211025-1 | 5/9 Secondary reference Lockheed Martin Sippican, Inc. Div Lockheed Martin Marion |
| E211025-1 | 5/9 Secondary reference Lockheed Martin Sippican, Inc. Div Communication Division |
| AS-3435/BRC | 5/1 Secondary reference U.S. Government activity |
NSN 5985-01-218-9940 is a Antenna Element, manufactured by Lockheed Martin Corporation Div Rms, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-218-9940 has 2 manufacturer part numbers on file: E211025-1 (Lockheed Martin Corporation Div Rms), AS-3435 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier).
Key specifications for E211025-1: Design Type: MONOPOLE SINGLE ANTENNA ELEMENT; Overall Diameter: 0.650 INCHES NOMINAL IN; Overall Length: 100.000 FEET MAXIMUM FT; Features Provided: PRESSURIZED AND RETRACTABLE. 4 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 5985-01-218-9940 has DEMIL Code D. Demilitarization may be required before disposal or transfer to non-military entities.
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.