The Diplexer, cataloged under National Stock Number 5985-01-668-2597, 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 Pulsar Microwave Corp Dba Pulsar Microwave Corp. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Diplexer |
| FSC / FSG | 5985 — Antennas, Waveguides, and Related Equipment (FSG 59) |
| Manufacturers | Pulsar Microwave Corp Dba Pulsar Microwave Corp (CAGE 0HR85) |
| Parameter | Value |
|---|---|
| NSN | 5985-01-668-2597 |
| Primary Part Number | BT-L52-411T |
| Item Name | Diplexer |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Pulsar Microwave Corp Dba Pulsar Microwave Corp |
| Status | ACTIVE |
| 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 |
|---|---|
| BT-L52-411T PRIMARY | Pulsar Microwave Corp Dba Pulsar Microwave Corp (USA) |
| Reference | Meaning |
|---|---|
| 74B870415-101 | 7/2 Vendor item drawing reference The Boeing Company Div Defense |
| 74B870415 | D/9 Drawing number reference only The Boeing Company Div Defense |
NSN 5985-01-668-2597 is a Diplexer, manufactured by Pulsar Microwave Corp Dba Pulsar Microwave Corp, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-668-2597 has 1 manufacturer part number on file: BT-L52-411T (Pulsar Microwave Corp Dba Pulsar Microwave Corp).
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.