The Base,antenna Support, cataloged under National Stock Number 5985-01-535-5583, 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. Government technical data includes 2 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.
| Parameter | Value |
|---|---|
| NSN | 5985-01-535-5583 |
| Primary Part Number | LA-RF490-1 |
| Item Name | Base,antenna Support |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Lockheed Martin Corporation |
| Status | ACTIVE |
| Supplementary Features | TEN COUNTERSUNK UNTHREADED THROUGH HOLES PROVIDED IN MOUNTING FLANGE AND TWELVE PLAIN UNTHREADED HOLES WITH FASTENING NUTS RIVITED IN PLACE PROVIDED FOR FASTENING THE ANTENNA TO THIS ADAPTER BASE |
| Basic Shape Style | IRREGULAR |
| 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 |
|---|---|
| LA-RF490-1 PRIMARY | Lockheed Martin Corporation (USA) |
NSN 5985-01-535-5583 is a Base,antenna Support, manufactured by Lockheed Martin Corporation, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-535-5583 has 1 manufacturer part number on file: LA-RF490-1 (Lockheed Martin Corporation).
Key specifications for LA-RF490-1: Overall Height: 2.000 INCHES NOMINAL IN; Supplementary Features: TEN COUNTERSUNK UNTHREADED THROUGH HOLES PROVIDED IN MOUNTING FLANGE AND TWELVE PLAIN UNTHREADED HOLES WITH FASTENING NUTS RIVITED IN PLACE PROVIDED FOR FASTENING THE ANTENNA TO THIS ADAPTER BASE; Overall Length: 12.000 INCHES NOMINAL IN; Overall Width: 5.000 INCHES NOMINAL IN. 2 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 5985-01-535-5583 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.