The Diplexer, cataloged under National Stock Number 5985-01-312-9504, 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 Northrop Grumman Systems Corporation. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-312-9504 |
| Primary Part Number | 123SCAV5803-1 |
| Item Name | Diplexer |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Operating Frequency | 400.0 MEGAHERTZ NOMINAL LOCATION NOT OTHERWISE SPECIFIED |
| 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 |
|---|---|
| 123SCAV5803-1 | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| DMFM34-5-1 | 5/9 Secondary reference U.S. Government activity |
| DMFM34-5-1 | 5/9 Secondary reference L3harris Technologies, Inc. Dba Harris Corp Div Antenna Products |
| DMFM34-5-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5985-01-312-9504 is a Diplexer, manufactured by Northrop Grumman Systems Corporation, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-312-9504 has 1 manufacturer part number on file: 123SCAV5803-1 (Northrop Grumman Systems Corporation).
Key specifications for 123SCAV5803-1: Overall Height: 1.840 INCHES MAXIMUM IN; Overall Length: 6.630 INCHES MAXIMUM IN; Overall Width: 3.060 INCHES MAXIMUM IN; Operating Frequency: 400.0 MEGAHERTZ NOMINAL LOCATION NOT OTHERWISE SPECIFIED. 1 specification is 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 5985-01-312-9504 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.