The Waveguide, cataloged under National Stock Number 5985-00-212-7690, 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 Hf Group Inc Dba Hf Group Inc. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government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 |
| FSC / FSG | 5985 — Antennas, Waveguides, and Related Equipment (FSG 59) |
| Manufacturers | Frontgrade Technologies Inc. (CAGE 66544); Hf Group Inc Dba Hf Group Inc (CAGE 34895) |
| Parameter | Value |
|---|---|
| NSN | 5985-00-212-7690 |
| Primary Part Number | 3031100 |
| Item Name | Waveguide |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Hf Group Inc Dba Hf Group Inc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Part Number | Manufacturer |
|---|---|
| 19178 | Frontgrade Technologies Inc. (USA) |
| 3031100 PRIMARY | Hf Group Inc Dba Hf Group Inc (USA) |
| Reference | Meaning |
|---|---|
| CG179AU26 | 3/2 Design control — primary reference U.S. Government activity |
| CG179AU30IN | 5/2 Secondary reference U.S. Government activity |
| 19178 | 5/9 Secondary reference U.S. Government activity |
NSN 5985-00-212-7690 is a Waveguide, manufactured by Hf Group Inc Dba Hf Group Inc, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-00-212-7690 has 2 manufacturer part numbers on file: 19178 (Frontgrade Technologies Inc.), 3031100 (Hf Group Inc Dba Hf Group Inc).
4 possible matches (shared part number, not a government interchangeability claim): 4130-00-624-7612, 5950-01-208-4162, 5950-01-214-0475. 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 5985-00-212-7690 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.