The Waveguide Assembly, cataloged under National Stock Number 5985-01-375-2436, 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 26 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-375-2436 |
| Primary Part Number | R10-1174 |
| Item Name | Waveguide Assembly |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Microwave Engineering Corporation |
| Status | ACTIVE |
| Tubing Wall Construction Style | SEAMLESS ALL TUBING SEGMENT |
| Flange Inside Height | 0.425 INCHES MINIMUM AND 0.431 INCHES MAXIMUM ALL FLANGES IN |
| Flange Quantity | 2 |
| Voltage Standing Wave Ratio | 1.35 |
| Style Designator | OFFSET BEND TYPE |
| Flexibility | RIGID ALL TUBING SEGMENT |
| Waveguide Inside Width | 0.691 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | INTERNAL, RECTANGULAR DOUBLE RIDGED EXTERNAL, RECTANGULAR |
| Flange Outside Height | 1.360 INCHES MINIMUM AND 1.390 INCHES MAXIMUM ALL FLANGES IN |
| Waveguide Center to Center Distance | 20.682 INCHES MINIMUM AND 20.730 INCHES MAXIMUM IN |
| Flange Inside Width | 0.795 INCHES MINIMUM AND 0.801 INCHES MAXIMUM ALL FLANGES IN |
| Thread Direction | RIGHT-HAND ALL FLANGES ALL CONNECTION FACILITIES |
| Waveguide Length | 35.890 INCHES MINIMUM AND 36.150 INCHES MAXIMUM IN |
| Nominal Thread Size | 0.138 INCHES ALL FLANGES ALL CONNECTION FACILITIES IN |
| Waveguide Outside Height | 0.421 INCHES NOMINAL IN |
| Waveguide Outside Width | 0.791 INCHES NOMINAL IN |
| Flange Depth | 0.250 INCHES NOMINAL ALL FLANGES IN |
| Flange Outside Width | 1.360 INCHES MINIMUM AND 1.390 INCHES MAXIMUM ALL FLANGES IN |
| Insertion Loss in Decibels | 0.65 |
| Surface Treatment | CHROMATE ALL TUBING SEGMENT ALL SURFACES |
| Waveguide Inside Height | 0.321 INCHES NOMINAL IN |
| Thread Class | 2B ALL FLANGES ALL CONNECTION FACILITIES |
| Material | ALUMINUM ALLOY ALL TUBING SEGMENT |
| Flange Connecting Facility and Quantity | 4 CAPTIVE SCREW(S) ALL FLANGES ALL CONNECTION FACILITIES |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) ALL FLANGES ALL CONNECTION FACILITIES |
| Flange Style | CONTACT, DOUBLE RIDGE 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 |
|---|---|
| A55A9028-14 | Northrop Grumman Systems Corporation (USA) |
| R10-1174 PRIMARY | Microwave Engineering Corporation (USA) |
| TDRS145094 PRIMARY | Microwave Engineering Corporation (USA) |
NSN 5985-01-375-2436 is a Waveguide Assembly, manufactured by Microwave Engineering Corporation, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-375-2436 has 3 manufacturer part numbers on file: A55A9028-14 (Northrop Grumman Systems Corporation), R10-1174 (Microwave Engineering Corporation), TDRS145094 (Microwave Engineering Corporation).
Key specifications for R10-1174: Tubing Wall Construction Style: SEAMLESS ALL TUBING SEGMENT; Flange Inside Height: 0.425 INCHES MINIMUM AND 0.431 INCHES MAXIMUM ALL FLANGES IN; Flange Quantity: 2; Voltage Standing Wave Ratio: 1.35. 26 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 5985-01-375-2436 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.