The Waveguide Assembly, cataloged under National Stock Number 5985-01-291-7722, 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 Waveline Inc. Government technical data includes 22 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-291-7722 |
| Primary Part Number | B-61745 |
| Item Name | Waveguide Assembly |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Waveline Inc |
| Status | ACTIVE |
| Tubing Wall Construction Style | SEAMLESS SINGLE TUBING SEGMENT |
| Flange Inside Height | 1.003 INCHES MINIMUM AND 1.009 INCHES MAXIMUM ALL FLANGES IN |
| Flange Quantity | 2 |
| Precious Material | SILVER |
| Style Designator | BEND TYPE |
| Waveguide Offset Distance | 2.040 INCHES MINIMUM AND 2.080 INCHES MAXIMUM IN |
| Flexibility | RIGID SINGLE TUBING SEGMENT |
| Waveguide Inside Width | 0.900 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | INTERNAL, RECTANGULAR EXTERNAL, RECTANGULAR |
| Flange Connecting Hole Diameter | 0.195 INCHES MINIMUM AND 0.203 INCHES MAXIMUM ALL FLANGES ALL CONNECTION FACILITIES IN |
| Flange Inside Width | 2.003 INCHES MINIMUM AND 2.009 INCHES MAXIMUM ALL FLANGES IN |
| Waveguide Outside Height | 0.500 INCHES NOMINAL IN |
| Waveguide Outside Width | 1.000 INCHES NOMINAL IN |
| Flange Depth | 0.360 INCHES MINIMUM AND 0.390 INCHES MAXIMUM ALL FLANGES IN |
| Precious Material and Location | INTERNAL AND EXTERNAL SURFACES SILVER |
| Waveguide Inside Height | 0.400 INCHES NOMINAL IN |
| Material | SILVER SINGLE TUBING SEGMENT |
| Material | ALUMINUM ALLOY ALL FLANGE |
| Flange Connecting Facility and Quantity | 8 UNTHREADED HOLE(S) ALL FLANGES ALL CONNECTION FACILITIES |
| Flange Outside Diameter | 3.610 INCHES MINIMUM AND 3.640 INCHES MAXIMUM ALL FLANGES IN |
| Flange Style | COVER TYPE ALL FLANGES |
| Waveguide Longer Offset Distance | 2.040 INCHES MINIMUM AND 2.080 INCHES MAXIMUM 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 |
|---|---|
| B-61745 | Waveline Inc (USA) |
| 90BH18-3E | Microwave Development Laboratories, Inc. Dba Microwave Development Laboratories Inc (USA) |
| Reference | Meaning |
|---|---|
| 090-1312 | 5/9 Secondary reference Waveguide Engineering and Mfg Co Inc |
| C9420-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5985-01-291-7722 is a Waveguide Assembly, manufactured by Waveline Inc, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-291-7722 has 2 manufacturer part numbers on file: B-61745 (Waveline Inc), 90BH18-3E (Microwave Development Laboratories, Inc. Dba Microwave Development Laboratories Inc).
Key specifications for B-61745: Tubing Wall Construction Style: SEAMLESS SINGLE TUBING SEGMENT; Flange Inside Height: 1.003 INCHES MINIMUM AND 1.009 INCHES MAXIMUM ALL FLANGES IN; Flange Quantity: 2; Precious Material: SILVER. 22 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 5985-01-291-7722 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.