The Adapter,waveguide, cataloged under National Stock Number 5985-01-042-2509, 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 29 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-042-2509 |
| Primary Part Number | TR6872007 |
| Item Name | Adapter,waveguide |
| 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 | 0.622 INCHES NOMINAL FIRST FLANGE IN |
| Flange Inside Height | 0.497 INCHES NOMINAL SECOND FLANGE IN |
| Flange Quantity | 2 |
| Special Test Features | LEAK RATE OF ASSY TO BE ZERO CFH STD AIR AT 0.5 PSIG |
| Voltage Standing Wave Ratio | 1.05 |
| Style Designator | WAVEGUIDE TO WAVEGUIDE |
| Waveguide Inside Width | 1.372 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | INTERNAL, RECTANGULAR EXTERNAL, RECTANGULAR |
| Flange Outside Height | 1.750 INCHES NOMINAL SECOND FLANGE IN |
| Adapter Length | 6.500 INCHES NOMINAL IN |
| Flange Connecting Hole Diameter | 0.169 INCHES NOMINAL SECOND FLANGE ALL CONNECTION FACILITIES IN |
| Flange Connecting Hole Diameter | 0.203 INCHES NOMINAL FIRST FLANGE ALL CONNECTION FACILITIES IN |
| Flange Inside Width | 1.122 INCHES NOMINAL SECOND FLANGE IN |
| Flange Inside Width | 1.372 INCHES NOMINAL FIRST FLANGE IN |
| Waveguide Outside Height | 0.750 INCHES NOMINAL IN |
| Waveguide Outside Width | 1.500 INCHES NOMINAL IN |
| Flange Depth | 0.500 INCHES NOMINAL SECOND FLANGE IN |
| Flange Depth | 0.750 INCHES NOMINAL FIRST FLANGE IN |
| Flange Outside Width | 2.500 INCHES NOMINAL SECOND FLANGE IN |
| Insertion Loss in Decibels | 0.03 |
| Surface Treatment | PAINT ALL TUBING SEGMENT AND FLANGE ALL SURFACES |
| Waveguide Inside Height | 0.622 INCHES NOMINAL IN |
| Material | ALUMINUM ALLOY OR COPPER ALLOY SINGLE TUBING SEGMENT |
| Flange Connecting Facility and Quantity | 8 UNTHREADED HOLE(S) SECOND FLANGE ALL CONNECTION FACILITIES |
| Flange Connecting Facility and Quantity | 6 UNTHREADED HOLE(S) FIRST FLANGE ALL CONNECTION FACILITIES |
| Flange Outside Diameter | 3.125 INCHES NOMINAL FIRST FLANGE IN |
| Flange Style | CHOKE TYPE FIRST FLANGE |
| Flange Style | CONTACT TYPE SECOND FLANGE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | N |
NSN 5985-01-042-2509 is a Adapter,waveguide, manufactured by Microwave Engineering Corporation, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-042-2509 has 3 manufacturer part numbers on file: TR6872007 (Microwave Engineering Corporation), 40653-2 (Waveline Inc), 635-A25 (Microlab/fxr Llc).
3 possible matches (shared part number, not a government interchangeability claim): 6660-01-422-9613, 5350-01-438-0775, 1010-01-654-8448. Verify interchangeability with system specifications before substitution.
Key specifications for TR6872007: Tubing Wall Construction Style: SEAMLESS ALL TUBING SEGMENT; Flange Inside Height: 0.622 INCHES NOMINAL FIRST FLANGE IN; Flange Inside Height: 0.497 INCHES NOMINAL SECOND FLANGE IN; Flange Quantity: 2. 29 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 5985-01-042-2509 has DEMIL Code B. 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.