The Waveguide Assembly, cataloged under National Stock Number 5985-01-287-3133, 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 6 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. 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 | 5985-01-287-3133 |
| Primary Part Number | 229137 |
| Item Name | Waveguide Assembly |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Microtech Inc Dba Microtech Inc |
| Status | ACTIVE |
| Waveguide First Leg Length | 20.922 INCHES NOMINAL IN |
| Waveguide Second Leg Length | 2.500 INCHES NOMINAL IN |
| Style Designator | THREE BEND TYPE |
| Waveguide Fourth Leg Length | 3.000 INCHES NOMINAL IN |
| Material | COPPER ALLOY ALL TUBING SEGMENT |
| Waveguide Third Leg Length | 10.328 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
NSN 5985-01-287-3133 is a Waveguide Assembly, manufactured by Microtech Inc Dba Microtech Inc, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-287-3133 has 2 manufacturer part numbers on file: 229137 (Microtech Inc Dba Microtech Inc), 6408536-1 (Honeywell Intl Inc Defense Avionics Systems Former Test Systems Div).
1 possible match (shared part number, not a government interchangeability claim): 5306-01-298-1290. Verify interchangeability with system specifications before substitution.
Key specifications for 229137: Waveguide First Leg Length: 20.922 INCHES NOMINAL IN; Waveguide Second Leg Length: 2.500 INCHES NOMINAL IN; Style Designator: THREE BEND TYPE; Waveguide Fourth Leg Length: 3.000 INCHES NOMINAL IN. 6 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 5985-01-287-3133 has DEMIL Code Q. 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.