The Coupler,directional, cataloged under National Stock Number 5985-00-138-5131, 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 Pico Macom, Inc. Government technical data includes 6 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5985-00-138-5131 |
| Primary Part Number | TSC4-20SB |
| Item Name | Coupler,directional |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Pico Macom, Inc |
| Status | ACTIVE |
| FSC Application Data | ANTENNAS,WAVEGUIES,AND RELATED EQUIPMENT |
| Unpackaged Unit Weight | 7.000 OUNCES NOMINAL OZ |
| Power Loss in Decibels | 19.0 |
| Design Type | BIDIRECTIONAL |
| Radio Frequency Rating | 5.0 MEGAHERTZ MINIMUM AND 806.0 MEGAHERTZ MAXIMUM |
| Unit Type | COAXIAL LINE |
| 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 |
|---|---|
| TSC4-20SB | Pico Macom, Inc (USA) |
| Reference | Meaning |
|---|---|
| TSC4SB-20 | 5/9 Secondary reference Dawn Communications, Inc. Dba Dawnco |
| DC4G20 | 5/9 Secondary reference General Instrument Corporation Dba Motorola Div Motorola Mobility - Home Division |
| 1406 | 5/9 Secondary reference General Instrument Corporation Dba Motorola Div Motorola Mobility - Home Division |
| DCT4-19 | 5/9 Secondary reference General Instrument Corporation Dba Motorola Div Motorola Mobility - Home Division |
| TSC4SB-20 | 3/9 Design control — primary reference General Instrument Corporation Dba Motorola Div Motorola Mobility - Home Division |
NSN 5985-00-138-5131 is a Coupler,directional, manufactured by Pico Macom, Inc, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-00-138-5131 has 1 manufacturer part number on file: TSC4-20SB (Pico Macom, Inc).
Key specifications for TSC4-20SB: FSC Application Data: ANTENNAS,WAVEGUIES,AND RELATED EQUIPMENT; Unpackaged Unit Weight: 7.000 OUNCES NOMINAL OZ; Power Loss in Decibels: 19.0; Design Type: BIDIRECTIONAL. 6 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.