The Coupler,directional, cataloged under National Stock Number 5985-01-021-1257, 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 General Instrument Corporation Dba Motorola Div Motorola Mobility - Home Division. Government technical data includes 7 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-021-1257 |
| Primary Part Number | SSP-12 |
| Item Name | Coupler,directional |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | General Instrument Corporation Dba Motorola Div Motorola Mobility - Home Division |
| Status | ACTIVE |
| FSC Application Data | RADAR ANTENNA SUPPORT SET AND RADOMES,EXCEPT SPECIALLY DESIGNED |
| Terminal Fitting Controlling Agency | GENERAL INSTRUMENT CORP JERROLD ELECTRONICS DIV |
| Usage Design | MAIN LINE TERMINAL FITTING |
| Power Loss in Decibels | 1.3 |
| Design Type | UNIDIRECTIONAL |
| Radio Frequency Rating | 5.0 MEGAHERTZ MINIMUM AND 300.0 MEGAHERTZ MAXIMUM |
| Unit Type | COAXIAL LINE |
| 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 |
|---|---|
| SSP-12 PRIMARY | General Instrument Corporation Dba Motorola Div Motorola Mobility - Home Division (USA) |
| Reference | Meaning |
|---|---|
| STC-12B | 5/9 Secondary reference General Instrument Corporation Dba Motorola Div Motorola Mobility - Home Division |
| STC-12C | 5/9 Secondary reference General Instrument Corporation Dba Motorola Div Motorola Mobility - Home Division |
| STC-12F | 5/9 Secondary reference General Instrument Corporation Dba Motorola Div Motorola Mobility - Home Division |
| STC-12D | 5/9 Secondary reference General Instrument Corporation Dba Motorola Div Motorola Mobility - Home Division |
| 105399-690 | C/1 Advisory reference — outside the item-of-supply concept Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp |
NSN 5985-01-021-1257 is a Coupler,directional, manufactured by General Instrument Corporation Dba Motorola Div Motorola Mobility - Home Division, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-021-1257 has 1 manufacturer part number on file: SSP-12 (General Instrument Corporation Dba Motorola Div Motorola Mobility - Home Division).
Key specifications for SSP-12: FSC Application Data: RADAR ANTENNA SUPPORT SET AND RADOMES,EXCEPT SPECIALLY DESIGNED; Terminal Fitting Controlling Agency: GENERAL INSTRUMENT CORP JERROLD ELECTRONICS DIV; Usage Design: MAIN LINE TERMINAL FITTING; Power Loss in Decibels: 1.3. 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 5985-01-021-1257 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.