The Line,radio Frequency Transmissio, cataloged under National Stock Number 5985-01-443-8591, 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 Avaya Inc Dba Avaya Government Solutions. The record lists 19 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 10 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-443-8591 |
| Primary Part Number | TN566C |
| Item Name | Line,radio Frequency Transmissio |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Avaya Inc Dba Avaya Government Solutions |
| Status | ACTIVE |
| 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 |
|---|---|
| TN556 | Dynalec Corporation (USA) |
| 105729339 | Avaya Inc Dba Avaya Government Solutions (USA) |
| TN556 | Avaya Inc Dba Avaya Government Solutions (USA) |
| 108268097 | Dynalec Corporation (USA) |
| 700394570 | Procomm Voice and Data Solutions, Inc. Dba Procomm Voice & Data Solutions (USA) |
| TN566C PRIMARY | Avaya Inc Dba Avaya Government Solutions (USA) |
| TN556D | Dynalec Corporation (USA) |
| 108267097 | Avaya Federal Solutions, Inc (USA) |
| 700394570 | Avaya Inc Dba Avaya Government Solutions (USA) |
| 700394570 | Avaya Federal Solutions, Inc (USA) |
| TN556C | Avaya Inc Dba Avaya Government Solutions (USA) |
| TN556B | Avaya Inc Dba Avaya Government Solutions (USA) |
| 108267097X | Avaya Inc Dba Avaya Government Solutions (USA) |
| 108267097 | Avaya Inc Dba Avaya Government Solutions (USA) |
| PEC65512 | Avaya Inc Dba Avaya Government Solutions (USA) |
| TN556 | Avaya Federal Solutions, Inc (USA) |
| 108267097 | Dynalec Corporation (USA) |
| TN556D | Avaya Inc Dba Avaya Government Solutions (USA) |
| TN556D PRIMARY | Avaya Federal Solutions, Inc (USA) |
| Reference | Meaning |
|---|---|
| 65512 | 5/9 Secondary reference Lucent Technologies Inc Advanced Technology Systems |
| TN556D | 5/9 Secondary reference Lucent Technologies Inc Advanced Technology Systems |
| 105729339 | 5/9 Secondary reference Alcatel-Lucent Usa Inc. |
| TN556C | C/1 Advisory reference — outside the item-of-supply concept Lgs Innovations Llc |
| 105729339 | 3/9 Design control — primary reference Lucent Technologies Inc Advanced Technology Systems |
| TN556C | 5/9 Secondary reference Alcatel-Lucent Usa Inc. |
| 105729339 | C/1 Advisory reference — outside the item-of-supply concept Lgs Innovations Llc |
| TN556B | 5/9 Secondary reference Lucent Technologies Inc Advanced Technology Systems |
| TN556 | 5/9 Secondary reference Alcatel-Lucent Usa Inc. |
| TN556 | C/1 Advisory reference — outside the item-of-supply concept Lgs Innovations Llc |
NSN 5985-01-443-8591 is a Line,radio Frequency Transmissio, manufactured by Avaya Inc Dba Avaya Government Solutions, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-443-8591 has 19 manufacturer part numbers on file: TN556 (Dynalec Corporation), 105729339 (Avaya Inc Dba Avaya Government Solutions), TN556 (Avaya Inc Dba Avaya Government Solutions), 108268097 (Dynalec Corporation), 700394570 (Procomm Voice and Data Solutions, Inc. Dba Procomm Voice & Data Solutions) and 14 more.
2 possible matches (shared part number, not a government interchangeability claim): 5930-01-533-4846, 2910-01-686-4645. Verify interchangeability with system specifications before substitution.
Key specifications for TN566C: End Item Identification: MP200108 FWD EXP, DEF 75 SSTA PPNCABINET. 0 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 5985-01-443-8591 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.