The Waveguide Assembly, cataloged under National Stock Number 5985-01-357-7078, 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 Microtech Inc Dba Microtech Inc. Government technical data includes 21 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-357-7078 |
| Primary Part Number | 231973 |
| Item Name | Waveguide Assembly |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Microtech Inc Dba Microtech Inc |
| Status | ACTIVE |
| Tubing Wall Construction Style | CORRUGATED SINGLE TUBING SEGMENT |
| Flange Inside Height | 0.752 INCHES MINIMUM AND 0.758 INCHES MAXIMUM FIRST FLANGE IN |
| Flange Quantity | 2 |
| Waveguide First Leg Length | 1.750 INCHES MINIMUM AND 2.250 INCHES MAXIMUM IN |
| Waveguide Second Leg Length | 4.170 INCHES MINIMUM AND 4.670 INCHES MAXIMUM IN |
| Style Designator | THREE BEND TYPE |
| Flexibility | FLEXIBLE SINGLE TUBING SEGMENT |
| Waveguide Inside Width | 1.368 INCHES MINIMUM AND 1.376 INCHES MAXIMUM IN |
| Cross-Sectional Shape Style | INTERNAL, RECTANGULAR EXTERNAL, RECTANGULAR |
| Flange Connecting Hole Diameter | 0.199 INCHES NOMINAL FIRST FLANGE ALL CONNECTION FACILITIES IN |
| Flange Inside Width | 1.505 INCHES MINIMUM AND 1.508 INCHES MAXIMUM FIRST FLANGE IN |
| Waveguide Fourth Leg Length | 4.250 INCHES NOMINAL IN |
| Waveguide Outside Height | 0.746 INCHES MINIMUM AND 0.754 INCHES MAXIMUM IN |
| Waveguide Outside Width | 0.746 INCHES MINIMUM AND 0.754 INCHES MAXIMUM IN |
| Flange Depth | 0.360 INCHES MINIMUM AND 0.390 INCHES MAXIMUM FIRST FLANGE IN |
| Surface Treatment | PAINT ALL TUBING SEGMENT AND FLANGE OUTSIDE SURFACES |
| Waveguide Inside Height | 1.496 INCHES MINIMUM AND 1.5004 INCHES MAXIMUM IN |
| Flange Connecting Facility and Quantity | 6 UNTHREADED HOLE(S) FIRST FLANGE ALL CONNECTION FACILITIES |
| Flange Outside Diameter | 3.110 INCHES MINIMUM AND 3.140 INCHES MAXIMUM FIRST FLANGE IN |
| Flange Style | COVER TYPE FIRST FLANGE |
| Waveguide Third Leg Length | 3.240 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 |
|---|---|
| 231973 PRIMARY | Microtech Inc Dba Microtech Inc (USA) |
| Reference | Meaning |
|---|---|
| 8811-1624-1 | 7/9 Vendor item drawing reference Drs Icas, Llc |
NSN 5985-01-357-7078 is a Waveguide Assembly, manufactured by Microtech Inc Dba Microtech Inc, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-357-7078 has 1 manufacturer part number on file: 231973 (Microtech Inc Dba Microtech Inc).
Key specifications for 231973: Tubing Wall Construction Style: CORRUGATED SINGLE TUBING SEGMENT; Flange Inside Height: 0.752 INCHES MINIMUM AND 0.758 INCHES MAXIMUM FIRST FLANGE IN; Flange Quantity: 2; Waveguide First Leg Length: 1.750 INCHES MINIMUM AND 2.250 INCHES MAXIMUM IN. 21 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 5985-01-357-7078 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.