The Coupler,directional, cataloged under National Stock Number 5985-00-079-0598, 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 Ward Leonard Ct Llc. Government technical data includes 8 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 5985-00-079-0598 |
| Primary Part Number | TDR19221-30A |
| Item Name | Coupler,directional |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Ward Leonard Ct Llc |
| Status | ACTIVE |
| FSC Application Data | TRANSMITTER,COUNTERMEASURE |
| Terminal Fitting Controlling Agency | MIL |
| Usage Design | SECONDARY LINE TERMINAL FITTING |
| Power Loss in Decibels | 30.0 |
| Identifying Number | TERMINAL FITTING TYPE N |
| Design Type | UNIDIRECTIONAL |
| Radio Frequency Rating | 4.8 GIGAHERTZ MINIMUM AND 6.6 GIGAHERTZ MAXIMUM |
| Unit Type | WAVEGUIDE |
| 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 |
|---|---|
| TDR19221-30A PRIMARY | Ward Leonard Ct Llc (USA) |
| Reference | Meaning |
|---|---|
| CU1906ALT27V | 5/1 Secondary reference U.S. Government activity |
| 44310 | 1/2 Source control — Government-approved source U.S. Government activity |
NSN 5985-00-079-0598 is a Coupler,directional, manufactured by Ward Leonard Ct Llc, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-00-079-0598 has 1 manufacturer part number on file: TDR19221-30A (Ward Leonard Ct Llc).
3 possible matches (shared part number, not a government interchangeability claim): 7690-00-604-0161, 5360-01-527-6304, 3110-01-574-5912. Verify interchangeability with system specifications before substitution.
Key specifications for TDR19221-30A: Overall Height: 3.000 INCHES NOMINAL IN; FSC Application Data: TRANSMITTER,COUNTERMEASURE; Terminal Fitting Controlling Agency: MIL; Usage Design: SECONDARY LINE TERMINAL FITTING. 8 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 5985-00-079-0598 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.