The Waveguide Assembly, cataloged under National Stock Number 5985-00-201-5146, 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 13 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-00-201-5146 |
| Primary Part Number | 116803 |
| Item Name | Waveguide Assembly |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Frontgrade Technologies Inc. |
| Status | ACTIVE |
| Tubing Wall Construction Style | CONVOLUTE SINGLE TUBING SEGMENT |
| Flange Quantity | 2 |
| Style Designator | BEND TYPE |
| Flexibility | FLEXIBLE SINGLE TUBING SEGMENT |
| Cross-Sectional Shape Style | INTERNAL, RECTANGULAR DOUBLE RIDGED EXTERNAL, RECTANGULAR |
| Flange Outside Height | 1.687 INCHES NOMINAL ALL FLANGES IN |
| Flange Connecting Hole Diameter | 0.156 INCHES NOMINAL ALL FLANGES ALL CONNECTION FACILITIES IN |
| Flange Outside Width | 2.750 INCHES NOMINAL ALL FLANGES IN |
| Material | RUBBER SYNTHETIC SINGLE TUBING JACKET |
| Material | ALUMINUM ALL TUBING SEGMENT AND FLANGE |
| Flange Connecting Facility and Quantity | 8 UNTHREADED HOLE(S) ALL FLANGES ALL CONNECTION FACILITIES |
| Flange Style | CONTACT, DOUBLE RIDGE TYPE ALL FLANGES |
| Waveguide Longer Offset Distance | 9.000 INCHES NOMINAL IN |
| 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 |
|---|---|
| 116803 PRIMARY | Frontgrade Technologies Inc. (USA) |
| Reference | Meaning |
|---|---|
| 570687-1 | 7/2 Vendor item drawing reference Raytheon Company Dba Raytheon Co |
| 116803 | 5/9 Secondary reference U.S. Government activity |
| 570687-1 | 5/9 Secondary reference Raytheon Company Div Corp |
NSN 5985-00-201-5146 is a Waveguide Assembly, manufactured by Frontgrade Technologies Inc., classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-00-201-5146 has 1 manufacturer part number on file: 116803 (Frontgrade Technologies Inc.).
2 possible matches (shared part number, not a government interchangeability claim): 5935-00-409-7709, 5310-01-234-7598. Verify interchangeability with system specifications before substitution.
Key specifications for 116803: Tubing Wall Construction Style: CONVOLUTE SINGLE TUBING SEGMENT; Flange Quantity: 2; Style Designator: BEND TYPE; Flexibility: FLEXIBLE SINGLE TUBING SEGMENT. 13 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 5985-00-201-5146 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.