The Waveguide Assembly, cataloged under National Stock Number 5985-01-376-5374, 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.. Government technical data includes 12 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-376-5374 |
| Primary Part Number | 106998 |
| Item Name | Waveguide Assembly |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Frontgrade Technologies Inc. |
| Status | ACTIVE |
| Tubing Wall Construction Style | SEAMLESS SINGLE TUBING SEGMENT |
| Flange Quantity | 2 |
| Waveguide First Leg Length | 2.943 INCHES NOMINAL IN |
| Criticality Code Justification | FEAT |
| Waveguide Second Leg Length | 2.540 INCHES NOMINAL IN |
| Style Designator | FOUR BEND TYPE |
| Flexibility | RIGID SINGLE TUBING SEGMENT |
| Waveguide Fourth Leg Length | 16.494 INCHES NOMINAL IN |
| Waveguide Fifth Leg Length | 2.403 INCHES NOMINAL IN |
| Material | COPPER ALLOY ALL FLANGE |
| Material | COPPER ALLOY SINGLE FLANGE |
| Waveguide Third Leg Length | 6.312 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| 106998 PRIMARY | Frontgrade Technologies Inc. (USA) |
| DAA3394P424-133 | Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems (USA) |
NSN 5985-01-376-5374 is a Waveguide Assembly, manufactured by Frontgrade Technologies Inc., classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-376-5374 has 2 manufacturer part numbers on file: 106998 (Frontgrade Technologies Inc.), DAA3394P424-133 (Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems).
Key specifications for 106998: Tubing Wall Construction Style: SEAMLESS SINGLE TUBING SEGMENT; Flange Quantity: 2; Waveguide First Leg Length: 2.943 INCHES NOMINAL IN; Criticality Code Justification: FEAT. 12 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 5985-01-376-5374 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.