The Line,radio Frequency Transmissio, cataloged under National Stock Number 5985-01-431-4251, 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 Dynalec Corporation. The record lists 6 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 9 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-431-4251 |
| Primary Part Number | TN2181-16PT |
| Item Name | Line,radio Frequency Transmissio |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Dynalec Corporation |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| TN2181-16PT PRIMARY | Dynalec Corporation (USA) |
| TN2181 PRIMARY | Avaya Inc Dba Avaya Government Solutions (USA) |
| TN2181-16PT PRIMARY | Avaya Inc Dba Avaya Government Solutions (USA) |
| TN2181 PRIMARY | Avaya Federal Solutions, Inc (USA) |
| 106706948 | Avaya Federal Solutions, Inc (USA) |
| 63841 PRIMARY | Avaya Inc Dba Avaya Government Solutions (USA) |
| Reference | Meaning |
|---|---|
| TN2181 | 5/9 Secondary reference Lucent Technologies Inc Dba Federal Marketing Group |
| 106706948 | 5/9 Secondary reference Avaya Inc Dba Avaya Government Solutions |
| 63841 | C/1 Advisory reference — outside the item-of-supply concept Lucent Technologies Inc Corporate Headquarters |
| TN2181 | 5/9 Secondary reference American Telephone and Telegraph Co |
| MP200208 LINE-131 | 5/9 Secondary reference Lucent Technologies Inc Advanced Technology Systems |
| TN2181 | C/1 Advisory reference — outside the item-of-supply concept Lucent Technologies Inc Corporate Headquarters |
| 106706948 | 5/9 Secondary reference Lucent Technologies Inc Advanced Technology Systems |
| 63841 | 5/9 Secondary reference American Telephone and Telegraph Co |
| 63841 | 5/9 Secondary reference Lucent Technologies Inc Dba Federal Marketing Group |
NSN 5985-01-431-4251 is a Line,radio Frequency Transmissio, manufactured by Dynalec Corporation, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-431-4251 has 6 manufacturer part numbers on file: TN2181-16PT (Dynalec Corporation), TN2181 (Avaya Inc Dba Avaya Government Solutions), TN2181-16PT (Avaya Inc Dba Avaya Government Solutions), TN2181 (Avaya Federal Solutions, Inc), 106706948 (Avaya Federal Solutions, Inc) and 1 more.
1 possible match (shared part number, not a government interchangeability claim): 5895-01-490-9877. Verify interchangeability with system specifications before substitution.
Key specifications for TN2181-16PT: End Item Identification: SHIPS SERVICE TELEPHONE NS6121-289-1-306. 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.
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.