The Antenna, cataloged under National Stock Number 5985-01-731-0351, is classified within Federal Supply Class 5985 (Antennas, Waveguides, and Related Equipment) of the Electrical and Electronic Equipment Components group. Government technical data includes 3 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-731-0351 |
| Item Name | Antenna |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Status | ACTIVE |
| Beam Scanning Method | UNABLE TO DECODE |
| Extra Long Reference Number | TCI MODEL 641N ANTENNA (WITH ELECTRONIC COMPASS) |
| Reference Number Differentiating Characteristics | SUGGESTED SOURCE OF SUPPLY |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| TCI MODEL 641N ANTENNA (WITH EL- | 3/1 Design control — primary reference Tci Dba Tyson Cash |
NSN 5985-01-731-0351 is a Antenna, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
Key specifications for 5985-01-731-0351: Beam Scanning Method: UNABLE TO DECODE; Extra Long Reference Number: TCI MODEL 641N ANTENNA (WITH ELECTRONIC COMPASS); Special Features: TCI MODEL 641N ANTENNA (WITH ELECTRONIC COMPASS). ANTENNA TESTED FOR SINE DWELL VIBRATION 4 TO 30 HZ PER MIL-STD-810G METHOD 528. ITS DESIGN INCLUDES A BICONICAL OMNIDIRECTIONAL ANTENNA FOR VERTICAL MONITORING AND DF REFERENCE, A LOOP ELEMENT FOR HORIZONTAL SIGNAL MONITORING, AND A NINE-ELEMENT DF ARRAY FOR ACCURATELY DETECTING VERTICALLY POLARIZED SIGNALS. THE INTEGRATED BROADBAND RF SWITCH PLAYS A CRITICAL ROLE BY COMMUTATING SIGNALS FROM THE DIRECTION FINDING ELEMENTS TO AN EXTERNAL TWO-CHANNEL RECEIVER. THE ANTENNA INCORPORATES AN ELECTRONIC FLUX GATE COMPASS, DELIVERING PRECISE DIRECTIONAL REFERENCES EVEN WHILE IN MOTION. G; Reference Number Differentiating Characteristics: SUGGESTED SOURCE OF SUPPLY. 3 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.
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.