The Waveguide Assembly, cataloged under National Stock Number 5985-00-802-7540, 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 Us Army Aviation and Missile Command. Government technical data includes 30 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-00-802-7540 |
| Primary Part Number | 9176431 |
| Item Name | Waveguide Assembly |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Us Army Aviation and Missile Command |
| Status | ACTIVE |
| FSC Application Data | RADAR EQUIP. |
| Tubing Wall Construction Style | SEAMLESS SINGLE TUBING SEGMENT |
| Flange Inside Height | 0.503 INCHES MINIMUM ALL FLANGES IN |
| Waveguide Height | 4.172 INCHES MINIMUM AND 4.203 INCHES MAXIMUM IN |
| Flange Quantity | 2 |
| Precious Material | RHODIUM |
| Voltage Standing Wave Ratio | 1.10 |
| Waveguide Leg Length | 3.297 INCHES MINIMUM AND 3.328 INCHES MAXIMUM IN |
| Bend Angle in Deg | 180.0 SINGLE BEND E-PLANE |
| Style Designator | U-BEND TYPE |
| Flexibility | FLEXIBLE SINGLE TUBING SEGMENT |
| Waveguide Inside Width | 0.896 INCHES MINIMUM AND 0.904 INCHES MAXIMUM IN |
| Cross-Sectional Shape Style | INTERNAL, RECTANGULAR EXTERNAL, RECTANGULAR |
| Operating Pressure | 20.0 POUNDS PER SQUARE INCH GAUGE (PSIG) MAXIMUM LBS |
| Flange Outside Height | 1.610 INCHES MINIMUM AND 1.640 INCHES MAXIMUM ALL FLANGES IN |
| Flange Connecting Hole Diameter | 0.169 INCHES MINIMUM ALL FLANGES SINGLE CONNECTION FACILITY IN |
| Waveguide Center to Center Distance | 3.766 INCHES MINIMUM AND 3.797 INCHES MAXIMUM IN |
| Flange Inside Width | 1.003 INCHES MINIMUM ALL FLANGES IN |
| Waveguide Outside Height | 0.496 INCHES MINIMUM AND 0.504 INCHES MAXIMUM IN |
| Waveguide Outside Width | 0.996 INCHES MINIMUM AND 1.004 INCHES MAXIMUM IN |
| Flange Depth | 0.423 INCHES MINIMUM AND 0.453 INCHES MAXIMUM ALL FLANGES IN |
| Flange Outside Width | 1.610 INCHES MINIMUM AND 1.640 INCHES MAXIMUM ALL FLANGES IN |
| Insertion Loss in Decibels | 0.15 |
| Surface Treatment | RHODIUM ALL TUBING SEGMENT AND FLANGE ALL SURFACES |
| Precious Material and Location | ALL SURFACES RHODIUM |
| Waveguide Inside Height | 0.396 INCHES MINIMUM AND 0.404 INCHES MAXIMUM IN |
| Waveguide Longer Leg Length | 4.172 INCHES MINIMUM AND 4.203 INCHES MAXIMUM IN |
| Material | RUBBER SYNTHETIC SINGLE TUBING JACKET |
| Flange Connecting Facility and Quantity | 4 UNTHREADED HOLE(S) ALL FLANGES SINGLE CONNECTION FACILITY |
| Flange Style | COVER TYPE ALL FLANGES |
| 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 |
|---|---|
| 9176431 | Raytheon Company (USA) |
| 9176431 PRIMARY | Us Army Aviation and Missile Command (USA) |
| TS645142 | Ward Leonard Ct Llc (USA) |
| 9176431 | Raytheon Company Dba Raytheon Co (USA) |
| Reference | Meaning |
|---|---|
| 9176431 | 5/9 Secondary reference Raytheon Company Div Corp |
NSN 5985-00-802-7540 is a Waveguide Assembly, manufactured by Us Army Aviation and Missile Command, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-00-802-7540 has 4 manufacturer part numbers on file: 9176431 (Raytheon Company), 9176431 (Us Army Aviation and Missile Command), TS645142 (Ward Leonard Ct Llc), 9176431 (Raytheon Company Dba Raytheon Co).
Key specifications for 9176431: FSC Application Data: RADAR EQUIP.; Tubing Wall Construction Style: SEAMLESS SINGLE TUBING SEGMENT; Flange Inside Height: 0.503 INCHES MINIMUM ALL FLANGES IN; Waveguide Height: 4.172 INCHES MINIMUM AND 4.203 INCHES MAXIMUM IN. 30 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 5985-00-802-7540 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.