The Coupler,directional, cataloged under National Stock Number 5985-01-173-9928, 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 Autodyne Manufacturing Co Inc. Government technical data includes 6 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 5985-01-173-9928 |
| Primary Part Number | A12861 |
| Item Name | Coupler,directional |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Autodyne Manufacturing Co Inc |
| Status | ACTIVE |
| FSC Application Data | ANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT |
| Unpackaged Unit Weight | 0.700 OUNCES NOMINAL OZ |
| Power Loss in Decibels | 30.0 |
| Design Type | BIDIRECTIONAL |
| Radio Frequency Rating | 7.2 GIGAHERTZ MINIMUM AND 8.4 GIGAHERTZ MAXIMUM |
| Unit Type | TRANSMISSION LINE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| A12861 | Autodyne Manufacturing Co Inc (USA) |
| C2MT-30-10G/32474 | Merrimac Industries, Inc (USA) |
| Reference | Meaning |
|---|---|
| 25109 | 5/2 Secondary reference U.S. Government activity |
| SM-A-776939-2 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5985-01-173-9928 is a Coupler,directional, manufactured by Autodyne Manufacturing Co Inc, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-173-9928 has 2 manufacturer part numbers on file: A12861 (Autodyne Manufacturing Co Inc), C2MT-30-10G/32474 (Merrimac Industries, Inc).
3 possible matches (shared part number, not a government interchangeability claim): 4720-01-538-1688, 5120-01-617-2709, 8465-01-678-0691. Verify interchangeability with system specifications before substitution.
Key specifications for A12861: Overall Height: 0.375 INCHES NOMINAL IN; FSC Application Data: ANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT; Unpackaged Unit Weight: 0.700 OUNCES NOMINAL OZ; Power Loss in Decibels: 30.0. 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.
NSN 5985-01-173-9928 has DEMIL Code B. 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.