The Diplexer, cataloged under National Stock Number 5985-01-142-3412, 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 Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier. Government technical data includes 4 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-142-3412 |
| Primary Part Number | 174AS572 |
| Item Name | Diplexer |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
| Status | ACTIVE |
| Operating Frequency | 1.0 GIGAHERTZ MINIMUM AND 4.0 GIGAHERTZ MAXIMUM LOCATION NOT OTHERWISE SPECIFIED |
| Transmission Line Type | COAXIAL CABLE |
| Electrical Power Source Relationship | OPERATING |
| Frequency Rating | 1.0 GIGAHERTZ MINIMUM AND 4.0 GIGAHERTZ MAXIMUM FIRST OPERATING POWER RQMT |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
NSN 5985-01-142-3412 is a Diplexer, manufactured by Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-142-3412 has 2 manufacturer part numbers on file: R7526 (Microphase Corp), 174AS572 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier).
1 possible match (shared part number, not a government interchangeability claim): 6680-01-214-5778. Verify interchangeability with system specifications before substitution.
Key specifications for 174AS572: Overall Height: 1.380 INCHES NOMINAL IN; Overall Length: 3.860 INCHES NOMINAL IN; Overall Width: 2.410 INCHES NOMINAL IN; Operating Frequency: 1.0 GIGAHERTZ MINIMUM AND 4.0 GIGAHERTZ MAXIMUM LOCATION NOT OTHERWISE SPECIFIED. 4 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 5985-01-142-3412 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.