The Coupler,directional, cataloged under National Stock Number 5985-01-035-5818, is classified within Federal Supply Class 5985 (Antennas, Waveguides, and Related Equipment) of the Electrical and Electronic Equipment Components group. Government technical data includes 8 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 6 items share a part number with this NSN in the catalog (possible match — not a government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 | 5985-01-035-5818 |
| Item Name | Coupler,directional |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Status | ACTIVE |
| Terminal Fitting Controlling Agency | MILITARY SPECIFICATION |
| Usage Design | MAIN LINE AND SECONDARY LINE TERMINAL FITTING |
| Power Loss in Decibels | 0.05 |
| Identifying Number | TERMINAL FITTING PART NO. M3922/53-005 |
| Design Type | UNIDIRECTIONAL |
| Radio Frequency Rating | 12.4 GIGAHERTZ MINIMUM AND 18.0 GIGAHERTZ MAXIMUM |
| Unit Type | WAVEGUIDE |
| Test Data Document | 81349-MIL-C-15370 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.). |
| 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 |
|---|---|
| CU-1519/U | 5/1 Secondary reference U.S. Government activity |
| MIL-C-15370/4 | 5/9 Secondary reference U.S. Government activity |
| M15370/4-010 | 2/2 Government specification standardization U.S. Government activity |
| MIL-DTL-15370/4 | 4/1 Identification reference U.S. Government activity |
NSN 5985-01-035-5818 is a Coupler,directional, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
6 possible matches (shared part number, not a government interchangeability claim): 5985-01-041-1561, 5985-01-069-9711, 5985-01-087-0953. Verify interchangeability with system specifications before substitution.
Key specifications for 5985-01-035-5818: Overall Height: 2.687 INCHES NOMINAL IN; Terminal Fitting Controlling Agency: MILITARY SPECIFICATION; Usage Design: MAIN LINE AND SECONDARY LINE TERMINAL FITTING; Power Loss in Decibels: 0.05. 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.
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.