The Flange,waveguide, cataloged under National Stock Number 5985-01-055-5653, 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 Northrop Grumman Systems Corporation. Government technical data includes 10 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-055-5653 |
| Primary Part Number | 1884989 |
| Item Name | Flange,waveguide |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Flange Inside Height | 0.494 INCHES MINIMUM AND 0.500 INCHES MAXIMUM SINGLE FLANGE IN |
| Flange Connecting Hole Diameter | 0.213 INCHES NOMINAL SINGLE FLANGE SINGLE CONNECTION FACILITY IN |
| Flange Inside Width | 1.119 INCHES MINIMUM AND 1.125 INCHES MAXIMUM SINGLE FLANGE IN |
| Flange Depth | 0.539 INCHES MINIMUM AND 0.541 INCHES MAXIMUM SINGLE FLANGE IN |
| Surface Treatment | SILVER SINGLE FLANGE INSIDE SURFACES |
| Surface Treatment | SILVER SINGLE FLANGE OUTSIDE SURFACES |
| Material | COPPER ALLOY SINGLE FLANGE |
| Flange Connecting Facility and Quantity | 6 UNTHREADED HOLE(S) SINGLE FLANGE SINGLE CONNECTION FACILITY |
| Flange Outside Diameter | 2.625 INCHES NOMINAL SINGLE FLANGE IN |
| Flange Style | COVER TYPE SINGLE FLANGE |
| 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 |
|---|---|
| 1884989 PRIMARY | Northrop Grumman Systems Corporation (USA) |
NSN 5985-01-055-5653 is a Flange,waveguide, manufactured by Northrop Grumman Systems Corporation, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-055-5653 has 1 manufacturer part number on file: 1884989 (Northrop Grumman Systems Corporation).
Key specifications for 1884989: Flange Inside Height: 0.494 INCHES MINIMUM AND 0.500 INCHES MAXIMUM SINGLE FLANGE IN; Flange Connecting Hole Diameter: 0.213 INCHES NOMINAL SINGLE FLANGE SINGLE CONNECTION FACILITY IN; Flange Inside Width: 1.119 INCHES MINIMUM AND 1.125 INCHES MAXIMUM SINGLE FLANGE IN; Flange Depth: 0.539 INCHES MINIMUM AND 0.541 INCHES MAXIMUM SINGLE FLANGE IN. 10 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 5985-01-055-5653 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.