The Coupling,waveguide, cataloged under National Stock Number 5985-01-437-9998, 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 Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp. Government technical data includes 7 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5985-01-437-9998 |
| Primary Part Number | 70600-81850-103 |
| Item Name | Coupling,waveguide |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp |
| Status | ACTIVE |
| Coupling Outside Width | 2.617 INCHES NOMINAL IN |
| Style Designator | RECTANGULAR |
| Coupling Outside Height | 2.000 INCHES NOMINAL IN |
| Surface Treatment | PAINT SINGLE TUBING SEGMENT OUTSIDE SURFACES |
| Material | ALUMINUM SINGLE TUBING SEGMENT |
| Material | STEEL CORROSION RESISTING SINGLE COUPLING |
| Coupling Overall Depth | 2.000 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 |
|---|---|
| 70600-81850-103 | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA) |
| Reference | Meaning |
|---|---|
| 126048 | 3/9 Design control — primary reference U.S. Government activity |
NSN 5985-01-437-9998 is a Coupling,waveguide, manufactured by Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-437-9998 has 1 manufacturer part number on file: 70600-81850-103 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp).
Key specifications for 70600-81850-103: Coupling Outside Width: 2.617 INCHES NOMINAL IN; Style Designator: RECTANGULAR; Coupling Outside Height: 2.000 INCHES NOMINAL IN; Surface Treatment: PAINT SINGLE TUBING SEGMENT OUTSIDE SURFACES. 7 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 5985-01-437-9998 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.