The Waveguide Assembly, cataloged under National Stock Number 5985-01-651-9427, 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 Microwave Engineering Corporation. Government technical data includes 10 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5985-01-651-9427 |
| Primary Part Number | R10-3690 |
| Item Name | Waveguide Assembly |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Microwave Engineering Corporation |
| Status | ACTIVE |
| Flange Quantity | 2 |
| Waveguide First Leg Length | 4.099 INCHES NOMINAL IN |
| Waveguide Second Leg Length | 5.52 INCHES NOMINAL IN |
| Style Designator | FIVE BEND TYPE |
| Flexibility | FLEXIBLE FIRST TUBING SEGMENT |
| Flexibility | RIGID SECOND TUBING SEGMENT |
| Cross-Sectional Shape Style | INTERNAL, RECTANGULAR DOUBLE RIDGED EXTERNAL, RECTANGULAR |
| Waveguide Fourth Leg Length | 10.084 INCHES NOMINAL IN |
| Waveguide Sixth Leg Length | 3.504 INCHES NOMINAL IN |
| Waveguide Third Leg Length | 1.321 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 |
|---|---|
| R10-3690 PRIMARY | Microwave Engineering Corporation (USA) |
| TDRS14117-1 PRIMARY | Microwave Engineering Corporation (USA) |
| Reference | Meaning |
|---|---|
| LE413-0277-0013 | 7/2 Vendor item drawing reference The Boeing Company Div Legacy Am&m |
| R107-1286 | 5/9 Secondary reference Microwave Engineering Corporation |
NSN 5985-01-651-9427 is a Waveguide Assembly, manufactured by Microwave Engineering Corporation, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-651-9427 has 2 manufacturer part numbers on file: R10-3690 (Microwave Engineering Corporation), TDRS14117-1 (Microwave Engineering Corporation).
1 possible match (shared part number, not a government interchangeability claim): 1560-01-733-4860. Verify interchangeability with system specifications before substitution.
Key specifications for R10-3690: Flange Quantity: 2; Waveguide First Leg Length: 4.099 INCHES NOMINAL IN; Waveguide Second Leg Length: 5.52 INCHES NOMINAL IN; Style Designator: FIVE BEND TYPE. 10 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 5985-01-651-9427 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.