The Waveguide Assembly, cataloged under National Stock Number 5985-01-232-5733, 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 Frontgrade Technologies Inc.. The record lists 4 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Waveguide Assembly |
| FSC / FSG | 5985 — Antennas, Waveguides, and Related Equipment (FSG 59) |
| Manufacturers | Frontgrade Technologies Inc. (CAGE 66544); Northrop Grumman Support Services Corp (CAGE 48306); Waveline Inc (CAGE 00443); Atlantic Microwave Corporation Div Cobham Electronic Systems (CAGE 28916) |
| Parameter | Value |
|---|---|
| NSN | 5985-01-232-5733 |
| Primary Part Number | 1D19890H01 |
| Item Name | Waveguide Assembly |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Frontgrade Technologies Inc. |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 1D19890H01 PRIMARY | Frontgrade Technologies Inc. (USA) |
| 1D19890H01 PRIMARY | Northrop Grumman Support Services Corp (USA) |
| 1D19890H01 | Waveline Inc (USA) |
| 1D19890H01 | Atlantic Microwave Corporation Div Cobham Electronic Systems (USA) |
| Reference | Meaning |
|---|---|
| 124072 | 5/9 Secondary reference U.S. Government activity |
| 1D19890H01 | 1/2 Source control — Government-approved source U.S. Government activity |
NSN 5985-01-232-5733 is a Waveguide Assembly, manufactured by Frontgrade Technologies Inc., classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-232-5733 has 4 manufacturer part numbers on file: 1D19890H01 (Frontgrade Technologies Inc.), 1D19890H01 (Northrop Grumman Support Services Corp), 1D19890H01 (Waveline Inc), 1D19890H01 (Atlantic Microwave Corporation Div Cobham Electronic Systems).
4 possible matches (shared part number, not a government interchangeability claim): 5340-01-264-1221, 5340-01-331-9472, 6530-01-363-1635. Verify interchangeability with system specifications before substitution.
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 5985-01-232-5733 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.