The Cover,waveguide Horn, cataloged under National Stock Number 5985-00-856-9920, 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 Loar Manufacturing Corp. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5985-00-856-9920 |
| Primary Part Number | SM-C-423394 |
| Item Name | Cover,waveguide Horn |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Loar Manufacturing Corp |
| Status | ACTIVE |
| FSC Application Data | RADIO SET GROUP,RADIO,EXCEPT NAVIGATION,NONAIRBORNE |
| Mounting Method | SCREW |
| Body Width | 20.125 INCHES NOMINAL IN |
| Body Height | 0.062 INCHES NOMINAL IN |
| Body Length | 26.125 INCHES NOMINAL IN |
| Material | GLASS |
| 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 |
|---|---|
| SM-C-423394 | Loar Manufacturing Corp (USA) |
| 1501009 | Ainslie Corporation (USA) |
| Reference | Meaning |
|---|---|
| SM-C-423394 | 5/9 Secondary reference Lamar Electronics Co |
| SM-C-423394 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5985-00-856-9920 is a Cover,waveguide Horn, manufactured by Loar Manufacturing Corp, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-00-856-9920 has 2 manufacturer part numbers on file: SM-C-423394 (Loar Manufacturing Corp), 1501009 (Ainslie Corporation).
1 possible match (shared part number, not a government interchangeability claim): 5910-01-090-1021. Verify interchangeability with system specifications before substitution.
Key specifications for SM-C-423394: FSC Application Data: RADIO SET GROUP,RADIO,EXCEPT NAVIGATION,NONAIRBORNE; Mounting Method: SCREW; Body Width: 20.125 INCHES NOMINAL IN; Body Height: 0.062 INCHES NOMINAL IN. 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.