The Coupler,directional, cataloged under National Stock Number 5985-01-116-0810, 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 Stellant Systems Inc. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5985-01-116-0810 |
| Primary Part Number | X-918-20-S2 |
| Item Name | Coupler,directional |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Stellant Systems Inc |
| Status | ACTIVE |
| FSC Application Data | ANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT |
| Terminal Fitting Controlling Agency | WAVECOM DIVISION FREQUENCY SOURCES INC |
| Usage Design | MAIN LINE TERMINAL FITTING |
| Design Type | BIDIRECTIONAL |
| Radio Frequency Rating | 9.6 GIGAHERTZ MINIMUM AND 10.0 GIGAHERTZ MAXIMUM |
| Unit Type | TRANSMISSION LINE |
| Usage Design | FOR TRANSMISSION LINES |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| X-918-20-S2 | Stellant Systems Inc (USA) |
| C10114-1 | Microwave Engineering Corporation (USA) |
| Reference | Meaning |
|---|---|
| RME-U-0001 | 5/9 Secondary reference Rme Filters Inc |
| C10114-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5985-01-116-0810 is a Coupler,directional, manufactured by Stellant Systems Inc, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-116-0810 has 2 manufacturer part numbers on file: X-918-20-S2 (Stellant Systems Inc), C10114-1 (Microwave Engineering Corporation).
1 possible match (shared part number, not a government interchangeability claim): 6610-01-515-8991. Verify interchangeability with system specifications before substitution.
Key specifications for X-918-20-S2: Overall Height: 2.030 INCHES MAXIMUM IN; FSC Application Data: ANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT; Terminal Fitting Controlling Agency: WAVECOM DIVISION FREQUENCY SOURCES INC; Usage Design: MAIN LINE TERMINAL FITTING. 7 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 5985-01-116-0810 has DEMIL Code Q. 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.